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Ong CW, Sheehan KG, Xu J, Falkenstein MJ, Kuckertz JM. A network analysis of mechanisms of change during exposures over the course of intensive OCD treatment. J Affect Disord 2024; 354:385-396. [PMID: 38508457 DOI: 10.1016/j.jad.2024.03.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 02/27/2024] [Accepted: 03/15/2024] [Indexed: 03/22/2024]
Abstract
Exposure and response prevention (ERP) is an evidence-based treatment for obsessive-compulsive disorder (OCD). Theories for how it works vary in their emphasis on active mechanisms of change. The current study aimed to clarify mechanisms of change in ERP for OCD using network analysis, comparing ERP networks at the start and end of intensive treatment (partial hospital and residential). In our sample of 182 patients, the most central node in both networks was engagement with exposure, which was consistently related to greater understanding of ERP rationale, higher willingness, and less ritualization, accounting for all other variables in the network. There were no significant differences in networks between the start and end of treatment. These results suggest that nonspecific parameters like facilitating engagement in exposures without ritualizing and providing a clear rationale to clients may be key to effective treatment. As such, it may be useful for clinicians to spend adequate time underscoring the need to eliminate rituals to fully engage in exposure tasks and explaining the rationale for ERP prior to doing exposures, regardless of theoretical orientation. Nonetheless, findings represent group-level statistics and more fine-grained idiographic analyses may reveal individual-level differences with respect to central mechanisms of change. Other limitations include demographic homogeneity of our sample.
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Affiliation(s)
- Clarissa W Ong
- Department of Psychology, University of Toledo, United States.
| | - Kate G Sheehan
- Department of Psychology, University of Toledo, United States
| | - Junjia Xu
- Obsessive Compulsive Disorder Institute, McLean Hospital, United States
| | - Martha J Falkenstein
- Obsessive Compulsive Disorder Institute, McLean Hospital, United States; Department of Psychiatry, Harvard Medical School, United States
| | - Jennie M Kuckertz
- Obsessive Compulsive Disorder Institute, McLean Hospital, United States; Department of Psychiatry, Harvard Medical School, United States
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2
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Abstract
"Compulsive Shopping" is characterized by poorly controlled preoccupations/urges/behaviors focused on shopping and spending, causing significant distress/impairment. This study looked at what roles executive and related memory problems might exist in compulsive shopping. 205 adults completed on-line questionnaires measuring compulsive shopping, mood, as well as working memory and inhibition components of executive function. The Bergen Shopping Addiction Scale was used to assign participants to either a High Compulsive Shopping (HCS) group or Low Compulsive Shopping (LCS) group. Working memory (WM) and inhibition control (IC) were measured as two components of executive function (EF) using the Adult Executive Functioning Inventory (ADEXI), the Dysexecutive Questionnaire Revised (DEX-R) measured general EF. The Hospital Anxiety and Depression Scale measured anxiety and depression. MANCOVA and mediation analyses were carried out controlling for age, gender, anxiety, depression. The HCS group scored significantly higher on all three EF measures, indicating greater executive difficulties. Subsequent mediation analyses with the ADEXI-IC as the mediator removed the significance of the relationship between Group and both the DEX-R and ADEXI-WM outcome variables. Thus, observed Group difference in DEX-R and ADEXI-WM could be fully accounted for by group differences in inhibitory control. The results highlight the role inhibitory control plays in compulsive shopping.
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Affiliation(s)
- Tom Heffernan
- Hoarding Research Group, Faculty of Health & Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - Colin Hamilton
- Hoarding Research Group, Faculty of Health & Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - Nick Neave
- Hoarding Research Group, Faculty of Health & Life Sciences, Northumbria University, Newcastle upon Tyne, UK
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Kamran R, Jackman L, Laws A, Stepney M, Harrison C, Jain A, Rodrigues J. Developing feasible and acceptable strategies for integrating the use of patient-reported outcome measures (PROMs) in gender-affirming care: An implementation study. PLoS One 2024; 19:e0301922. [PMID: 38625952 PMCID: PMC11020962 DOI: 10.1371/journal.pone.0301922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 03/21/2024] [Indexed: 04/18/2024] Open
Abstract
OBJECTIVE Use CFIR guidance to create comprehensive, evidence-based, feasible, and acceptable gender-affirming care PROM implementation strategies. DESIGN, SETTING, PARTICIPANTS A 3-Phase participatory process was followed to design feasible and acceptable strategies for integrating PROMs in gender-affirming care. In Phase 1, barriers and enablers to PROM implementation for gender-affirming care were identified from a previous systematic review and our prior qualitative study. We used the CFIR-ERIC tool to match previously identified barriers and enablers with expert-endorsed implementation strategies. In Phase 2, implementation strategy outputs from CFIR-ERIC were organised according to cumulative percentage value. In Phase 3, gender-affirming care PROM implementation strategies underwent iterative refinement based on rounds of stakeholder feedback with seven patient and public partners and a gender-affirming healthcare professional. RESULTS The systematic review and qualitative study identified barriers and enablers to PROM implementation spanning all five CFIR domains, and 30 CFIR constructs. The top healthcare professional-relevant strategies to PROM implementation from the CFIR-ERIC output include: identifying and preparing implementation champions, collecting feedback on PROM implementation, and capturing and sharing local knowledge between clinics on implementation. Top patient-relevant strategies include: having educational material on PROMs, ensuring adaptability of PROMs, and collaborating with key local organisations who may be able to support patients. CONCLUSIONS This study developed evidence-based, feasible, and acceptable strategies for integrating PROMs in gender-affirming care, representing evidence from a systematic review of 286 international articles, a qualitative study of 24 gender-affirming care patients and healthcare professionals, and iteration from 7 patient and public partners and a gender-affirming healthcare professional. The finalised strategies include patient- and healthcare professional-relevant strategies for implementing PROMs in gender-affirming care. Clinicians and researchers can select and tailor implementation strategies best applying to their gender-affirming care setting.
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Affiliation(s)
- Rakhshan Kamran
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Liam Jackman
- Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Anna Laws
- Northern Region Gender Dysphoria Service, Newcastle, United Kingdom
| | - Melissa Stepney
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Conrad Harrison
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | - Abhilash Jain
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | - Jeremy Rodrigues
- Warwick Clinical Trials Unit, University of Warwick, Warwick, United Kingdom
- Department of Plastic Surgery, Stoke Mandeville Hospital, Buckinghamshire Healthcare NHS Trust, Aylesbury, United Kingdom
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Restrepo-Martínez M, Ramirez-Bermudez J, Chacon-Gonzalez J, Ruiz-Garcia R, Malik R, Finger E. Defining repetitive behaviours in frontotemporal dementia. Brain 2024; 147:1149-1165. [PMID: 38134315 DOI: 10.1093/brain/awad431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 11/08/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
Repetitive behaviours are common manifestations of frontotemporal dementia (FTD). Patients with FTD exhibit various types of repetitive behaviours with unique behavioural and cognitive substrates, including compulsivity, lack of impulse control, stereotypy and hoarding. Other sources of repetitive behaviours, such as restrictive interests and insistence on sameness, may also be seen in FTD. Although repetitive behaviours are highly prevalent and potentially discriminatory in this population, their expression varies widely between patients, and the field lacks consensus about the classification of these behaviours. Terms used to describe repetitive behaviours in FTD are highly heterogeneous and may lack precise definitions. This lack of harmonization of the definitions for distinct forms of repetitive behaviour limits the ability to differentiate between pathological behaviours and impedes understanding of their underlying mechanisms. This review examines established definitions of well-characterized repetitive behaviours in other neuropsychiatric disorders and proposes operational definitions applicable to patients with FTD. Building on extant models of repetitive behaviours in non-human and lesion work and models of social behavioural changes in FTD, we describe the potential neurocognitive bases for the emergence of different types of repetitive behaviours in FTD and their potential perpetuation by a predisposition towards habit formation. Finally, examples of distinct therapeutic approaches for different forms of repetitive behaviours are highlighted, along with future directions to accurately classify, measure and treat these symptoms when they impair quality of life.
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Affiliation(s)
- Miguel Restrepo-Martínez
- Department of Clinical Neurological Sciences, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5C1, Canada
- Deparment of Cognitive Neurology, Parkwood Institute, London, ON N6C 5J1, Canada
| | - Jesus Ramirez-Bermudez
- Department of Neuropsychiatry, National Institute of Neurology and Neurosurgery Manuel Velasco Suarez, Mexico City, 14269, Mexico
| | - Jacobo Chacon-Gonzalez
- Department of Neuropsychiatry, National Institute of Neurology and Neurosurgery Manuel Velasco Suarez, Mexico City, 14269, Mexico
| | - Ramiro Ruiz-Garcia
- Department of Neuropsychiatry, National Institute of Neurology and Neurosurgery Manuel Velasco Suarez, Mexico City, 14269, Mexico
| | - Rubina Malik
- Department of Clinical Neurological Sciences, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5C1, Canada
- Deparment of Cognitive Neurology, Parkwood Institute, London, ON N6C 5J1, Canada
| | - Elizabeth Finger
- Department of Clinical Neurological Sciences, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5C1, Canada
- Deparment of Cognitive Neurology, Parkwood Institute, London, ON N6C 5J1, Canada
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Heinz A, Gutwinski S, Bahr NS, Spanagel R, Di Chiara G. Does compulsion explain addiction? Addict Biol 2024; 29:e13379. [PMID: 38588458 PMCID: PMC11001268 DOI: 10.1111/adb.13379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 01/18/2024] [Indexed: 04/10/2024]
Abstract
One of the leading drug addiction theories states that habits and the underlying neural process of a ventral to dorsal striatal shift are the building blocks of compulsive drug-seeking behaviour and that compulsion is the maladaptive persistence of responding despite adverse consequences. Here we discuss that compulsive behaviour as defined primarily from the perspective of animal experimentation falls short of the clinical phenomena and their neurobiological correlates. Thus for the human condition, the concept of compulsive habbits should be critically addressed and potentially revised.
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Affiliation(s)
- Andreas Heinz
- Department of Psychiatry and Neuroscience|CCM, NeuroCure Clinical Research Center, Berlin Institute of Health CCM, Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Mental Health (DZPG), Berlin-Potsdam
| | - Stefan Gutwinski
- Department of Psychiatry and Neuroscience|CCM, NeuroCure Clinical Research Center, Berlin Institute of Health CCM, Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Nadja Samia Bahr
- Department of Psychiatry and Neuroscience|CCM, NeuroCure Clinical Research Center, Berlin Institute of Health CCM, Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- German Center for Mental Health (DZPG), Berlin-Potsdam
| | - Rainer Spanagel
- Institute for Psychopharmacology, Medical Faculty Mannheim, Central Institute of Mental Health (CIMH), Heidelberg University, Mannheim, Germany
| | - Gaetano Di Chiara
- Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria di Monserrato, Cagliari, Italy
- Neuroscience Institute, National Research Council of Italy (CNR), Cagliari, Italy
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Nutley S, Nguyen BK, Mackin RS, Insel PS, Tosun D, Butters M, Aisen P, Raman R, Saykin AJ, Toga AW, Jack C, Weiner MW, Nelson C, Kassel M, Kryza-Lacombe M, Eichenbaum J, Nosheny RL, Mathews CA. Relationship of Hoarding and Depression Symptoms in Older Adults. Am J Geriatr Psychiatry 2024; 32:497-508. [PMID: 38092621 PMCID: PMC11055473 DOI: 10.1016/j.jagp.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 11/12/2023] [Accepted: 11/17/2023] [Indexed: 03/21/2024]
Abstract
Hoarding disorder (HD) is a debilitating neuropsychiatric condition that affects 2%-6% of the population and increases in incidence with age. Major depressive disorder (MDD) co-occurs with HD in approximately 50% of cases and leads to increased functional impairment and disability. However, only one study to date has examined the rate and trajectory of hoarding symptoms in older individuals with a lifetime history of MDD, including those with current active depression (late-life depression; LLD). We therefore sought to characterize this potentially distinct phenotype. We determined the incidence of HD in two separate cohorts of participants with LLD (n = 73) or lifetime history of MDD (n = 580) and examined the reliability and stability of hoarding symptoms using the Saving Inventory-Revised (SI-R) and Hoarding Rating Scale-Self Report (HRS), as well as the co-variance of hoarding and depression scores over time. HD was present in 12% to 33% of participants with MDD, with higher rates found in those with active depressive symptoms. Hoarding severity was stable across timepoints in both samples (all correlations >0.75), and fewer than 30% of participants in each sample experienced significant changes in severity between any two timepoints. Change in depression symptoms over time did not co-vary with change in hoarding symptoms. These findings indicate that hoarding is a more common comorbidity in LLD than previously suggested, and should be considered in screening and management of LLD. Future studies should further characterize the interaction of these conditions and their impact on outcomes, particularly functional impairment in this vulnerable population.
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Affiliation(s)
- Sara Nutley
- Department of Psychiatry (SN, BN, CAM), University of Florida College of Medicine, Gainesville, FL; Center for OCD, Anxiety, and Related Disorders (COARD) (SN, BN, CAM), University of Florida, Gainesville, FL; Department of Epidemiology (SN), University of Florida, Gainesville, FL
| | - Binh K Nguyen
- Department of Psychiatry (SN, BN, CAM), University of Florida College of Medicine, Gainesville, FL; Center for OCD, Anxiety, and Related Disorders (COARD) (SN, BN, CAM), University of Florida, Gainesville, FL
| | - Robert Scott Mackin
- Department of Psychiatry and Behavioral Sciences (RM, PI, MW, CN, MK, MK-L, RN), University of California, San Francisco, San Francisco, CA; San Francisco Veterans Administration Medical Center (DT, MW, MK, JE), San Francisco, CA
| | - Philip S Insel
- Department of Psychiatry and Behavioral Sciences (RM, PI, MW, CN, MK, MK-L, RN), University of California, San Francisco, San Francisco, CA
| | - Duygu Tosun
- San Francisco Veterans Administration Medical Center (DT, MW, MK, JE), San Francisco, CA; Department of Radiology (DT, MW, JE, RN), University of California, San Francisco, San Francisco, CA
| | - Meryl Butters
- Department of Psychiatry (MB), University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Paul Aisen
- University of Southern California (PA, RR), San Diego, CA; Alzheimer's Therapeutic Research Institute (PA, RR), University of Southern California, San Diego, CA
| | - Rema Raman
- University of Southern California (PA, RR), San Diego, CA; Alzheimer's Therapeutic Research Institute (PA, RR), University of Southern California, San Diego, CA
| | - Andrew J Saykin
- Indiana Alzheimer's Disease Research Center and Department of Radiology and Imaging Sciences (AS), Indiana University School of Medicine, Indianapolis, IN
| | - Arthur W Toga
- Laboratory of Neuro Imaging, Stevens Neuroimaging and Informatics Institute, Keck School of Medicine (AT), University of Southern California, Los Angeles, CA
| | | | - Michael W Weiner
- Department of Psychiatry and Behavioral Sciences (RM, PI, MW, CN, MK, MK-L, RN), University of California, San Francisco, San Francisco, CA; San Francisco Veterans Administration Medical Center (DT, MW, MK, JE), San Francisco, CA; Department of Radiology (DT, MW, JE, RN), University of California, San Francisco, San Francisco, CA; Department of Neurology (MW), University of California, San Francisco, San Francisco, CA
| | - Craig Nelson
- Department of Psychiatry and Behavioral Sciences (RM, PI, MW, CN, MK, MK-L, RN), University of California, San Francisco, San Francisco, CA
| | - Michelle Kassel
- Department of Psychiatry and Behavioral Sciences (RM, PI, MW, CN, MK, MK-L, RN), University of California, San Francisco, San Francisco, CA; San Francisco Veterans Administration Medical Center (DT, MW, MK, JE), San Francisco, CA
| | - Maria Kryza-Lacombe
- Department of Psychiatry and Behavioral Sciences (RM, PI, MW, CN, MK, MK-L, RN), University of California, San Francisco, San Francisco, CA; Mental Illness Research Education and Clinical Centers (MK-L), Veterans Administration Medical Center, San Francisco, CA
| | - Joseph Eichenbaum
- San Francisco Veterans Administration Medical Center (DT, MW, MK, JE), San Francisco, CA; Department of Radiology (DT, MW, JE, RN), University of California, San Francisco, San Francisco, CA
| | - Rachel L Nosheny
- Department of Psychiatry and Behavioral Sciences (RM, PI, MW, CN, MK, MK-L, RN), University of California, San Francisco, San Francisco, CA; Department of Radiology (DT, MW, JE, RN), University of California, San Francisco, San Francisco, CA
| | - Carol A Mathews
- Department of Psychiatry (SN, BN, CAM), University of Florida College of Medicine, Gainesville, FL; Center for OCD, Anxiety, and Related Disorders (COARD) (SN, BN, CAM), University of Florida, Gainesville, FL.
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7
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Doolan BJ, Ali R, Baron SE. Optimizing treatment of compulsive hair pulling in children and young people: A case series from a pediatric psychodermatology service. J Dermatol 2024; 51:612-613. [PMID: 38445800 DOI: 10.1111/1346-8138.17136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 12/29/2023] [Accepted: 01/20/2024] [Indexed: 03/07/2024]
Affiliation(s)
- Brent J Doolan
- Guy's and St. Thomas' NHS Foundation Trust, London, UK
- St. John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, UK
| | - Rukshana Ali
- Guy's and St. Thomas' NHS Foundation Trust, London, UK
- St. John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, UK
| | - Susannah E Baron
- Guy's and St. Thomas' NHS Foundation Trust, London, UK
- St. John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, UK
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Jiang Y, Lu R, Zhou Q, Shen Y, Zhu H. Analysis of post-market adverse events of istradefylline: a real-world study base on FAERS database. Sci Rep 2024; 14:7659. [PMID: 38561511 PMCID: PMC10985110 DOI: 10.1038/s41598-024-58460-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 03/29/2024] [Indexed: 04/04/2024] Open
Abstract
Analyze the adverse event (AE) signals of istradefylline based on the FAERS database. By extracting large-scale data from the FAERS database, this study used various signal quantification techniques such as ROR, PRR, BCPNN, and MGPS to calculate and evaluate the ratio and association between istradefylline and specific AEs. In the FAERS database, this study extracted data from the third quarter of 2019 to the first quarter of 2023, totaling 6,749,750 AE reports. After data cleansing and drug screening, a total of 3633 AE reports related to istradefylline were included for analysis. Based on four calculation methods, this study unearthed 25 System Organ Class (SOC) AE signals and 82 potential preferred terms (PTs) related to istradefylline. The analysis revealed new AEs during istradefylline treatment, including reports of Parkinsonism hyperpyrexia syndrome (n = 3, ROR 178.70, PRR 178.63, IC 1.97, EBGM 165.63), Compulsions (n = 5, ROR 130.12, PRR 130.04, IC 2.53, EBGM 123.02), Deep brain stimulation (n = 10, ROR 114.42, PRR 114.27, IC 3.33, EBGM 108.83), and Freezing phenomenon (n = 60, ROR 97.52, PRR 96.76, IC 5.21, EBGM 92.83). This study provides new risk signals and important insights into the use of istradefylline, but further research and validation are needed, especially for those AE that may occur in actual usage scenarios but are not yet explicitly described in the instructions.
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Affiliation(s)
- Ying Jiang
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, 214151, Jiangsu, China
| | - Rongrong Lu
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, 214151, Jiangsu, China
| | - Qin Zhou
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, 214151, Jiangsu, China
| | - Yuan Shen
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, 214151, Jiangsu, China.
| | - Haohao Zhu
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, 214151, Jiangsu, China.
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Bőthe B, Potenza MN, Demetrovics Z. Debates on Compulsive Sexual Behavior Disorder: A Call for Global and Interdisciplinary Perspectives. Arch Sex Behav 2024; 53:1215-1220. [PMID: 38418717 DOI: 10.1007/s10508-024-02836-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/15/2024] [Accepted: 02/15/2024] [Indexed: 03/02/2024]
Affiliation(s)
- Beáta Bőthe
- Département de Psychologie, Université de Montréal, Succursale Centre-Ville, C.P. 6128, Montréal, QC, H3C 3J7, Canada.
- Centre de Recherche Interdisciplinaire sur les Problèmes Conjugaux et les Agressions Sexuelles, Montréal, QC, Canada.
| | - Marc N Potenza
- Yale University School of Medicine, New Haven, CT, USA
- Connecticut Council on Problem Gambling, Wethersfield, CT, USA
- Connecticut Mental Health Center, New Haven, CT, USA
| | - Zsolt Demetrovics
- Centre of Excellence in Responsible Gaming, University of Gibraltar, Gibraltar, Gibraltar
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
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10
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Wang C, Wang X, Gao Z, Ran C, Li C, Ding C. Multiple serous cavity effusion screening based on smear images using vision transformer. Sci Rep 2024; 14:7395. [PMID: 38548898 PMCID: PMC10978834 DOI: 10.1038/s41598-024-58151-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 03/26/2024] [Indexed: 04/01/2024] Open
Abstract
Serous cavity effusion is a prevalent pathological condition encountered in clinical settings. Fluid samples obtained from these effusions are vital for diagnostic and therapeutic purposes. Traditionally, cytological examination of smears is a common method for diagnosing serous cavity effusion, renowned for its convenience. However, this technique presents limitations that can compromise its efficiency and diagnostic accuracy. This study aims to overcome these challenges and introduce an improved method for the precise detection of malignant cells in serous cavity effusions. We have developed a transformer-based classification framework, specifically employing the vision transformer (ViT) model, to fulfill this objective. Our research involved collecting smear images and corresponding cytological reports from 161 patients who underwent serous cavity drainage. We meticulously annotated 4836 patches from these images, identifying regions with and without malignant cells, thus creating a unique dataset for smear image classification. The findings of our study reveal that deep learning models, particularly the ViT model, exhibit remarkable accuracy in classifying patches as malignant or non-malignant. The ViT model achieved an impressive area under the receiver operating characteristic curve (AUROC) of 0.99, surpassing the performance of the convolutional neural network (CNN) model, which recorded an AUROC of 0.86. Additionally, we validated our models using an external cohort of 127 patients. The ViT model sustained its high-level screening performance, achieving an AUROC of 0.98 at the patient level, compared to the CNN model's AUROC of 0.84. The visualization of our ViT models confirmed their capability to precisely identify regions containing malignant cells in multiple serous cavity effusion smear images. In summary, our study demonstrates the potential of deep learning models, particularly the ViT model, in automating the screening process for serous cavity effusions. These models offer significant assistance to cytologists in enhancing diagnostic accuracy and efficiency. The ViT model stands out for its advanced self-attention mechanism, making it exceptionally suitable for tasks that necessitate detailed analysis of small, sparsely distributed targets like cellular clusters in serous cavity effusions.
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Affiliation(s)
- Chunbao Wang
- Department of Pathology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
- School of Computer Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Xiangyu Wang
- School of Computer Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Zeyu Gao
- CRUK Cambridge Centre, University of Cambridge, Cambridge, CB2 0RE, UK
| | - Caihong Ran
- Department of Pathology, Ngari Prefecture People's Hospital, Ngari of Tibet, 859000, China
| | - Chen Li
- School of Computer Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Caixia Ding
- Department of Pathology, Shaanxi Provincial Tumor Hospital, Xi'an, 710061, China.
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11
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Irving B, Kavanagh C, Fischer R, Yuki M. Dance for the dead: The role of top-down beliefs for social cohesion and anxiety management in naturally occurring collective rituals. PLoS One 2024; 19:e0291655. [PMID: 38512818 PMCID: PMC10956785 DOI: 10.1371/journal.pone.0291655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 09/03/2023] [Indexed: 03/23/2024] Open
Abstract
Collective rituals, particularly those characterized by synchrony and pain, have been shown to yield positive social and emotional outcomes. The question arises as to whether these findings extend to low-arousal, family-centered rituals and how spiritual beliefs factor into these communal practices. This study set out to examine the interplay between belief, ritual participation, and their effects on anxiety, social cohesion, and prosocial behavior during a low-arousal collective ritual in Mikasa, Japan. Drawing upon a sample of 183 festival participants, we measured belief in ancestors using a novel scale, identifying significant and consistent associations between these beliefs and measures of social cohesion across multiple targets. Moreover, active participation as a festival dancer displayed a positive relationship with feelings of social cohesion, particularly towards other festival attendees and at the national level. On measures of prosocial behavior, ancestral beliefs were positively associated with generosity shown within the festival setting, whereas observers were less generous towards community members than a non-attending control group. Anxiety outcomes displayed a negative relationship with ancestral beliefs and ritual observation but not participation as seen in previous research, suggesting a complex interplay between rituals, emotions, and individual states. These findings provide novel insights into the importance of belief systems and active participation in shaping social bonds and behaviors in the context of collective rituals.
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Affiliation(s)
- Briar Irving
- School of Psychology, Victoria University of Wellington, Wellington, New Zealand
| | - Christopher Kavanagh
- School of Anthropology & Museum Ethnography, University of Oxford, Oxford, Oxfordshire, United Kingdom
- Department of Contemporary Psychology, Rikkyo University, Tokyo, Japan
| | - Ronald Fischer
- School of Psychology, Victoria University of Wellington, Wellington, New Zealand
- Institute D´Or for Research and Education, Rio de Janeiro, Brazil
| | - Masaki Yuki
- Department of Behavioral Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
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Yu Q, Wang G, Cheng H, Guo W, Liu Y. The segmentation and intelligent recognition of structural surfaces in borehole images based on the U2-Net network. PLoS One 2024; 19:e0299471. [PMID: 38451909 PMCID: PMC10919631 DOI: 10.1371/journal.pone.0299471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 02/10/2024] [Indexed: 03/09/2024] Open
Abstract
Structural planes decrease the strength and stability of rock masses, severely affecting their mechanical properties and deformation and failure characteristics. Therefore, investigation and analysis of structural planes are crucial tasks in mining rock mechanics. The drilling camera obtains image information of deep structural planes of rock masses through high-definition camera methods, providing important data sources for the analysis of deep structural planes of rock masses. This paper addresses the problems of high workload, low efficiency, high subjectivity, and poor accuracy brought about by manual processing based on current borehole image analysis and conducts an intelligent segmentation study of borehole image structural planes based on the U2-Net network. By collecting data from 20 different borehole images in different lithological regions, a dataset consisting of 1,013 borehole images with structural plane type, lithology, and color was established. Data augmentation methods such as image flipping, color jittering, blurring, and mixup were applied to expand the dataset to 12,421 images, meeting the requirements for deep network training data. Based on the PyTorch deep learning framework, the initial U2-Net network weights were set, the learning rate was set to 0.001, the training batch was 4, and the Adam optimizer adaptively adjusted the learning rate during the training process. A dedicated network model for segmenting structural planes was obtained, and the model achieved a maximum F-measure value of 0.749 when the confidence threshold was set to 0.7, with an accuracy rate of up to 0.85 within the range of recall rate greater than 0.5. Overall, the model has high accuracy for segmenting structural planes and very low mean absolute error, indicating good segmentation accuracy and certain generalization of the network. The research method in this paper can serve as a reference for the study of intelligent identification of structural planes in borehole images.
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Affiliation(s)
- Qingjun Yu
- Chifengshan Jinhongling Nonferrous Mining Co., Ltd, Inner Mongolia, PR China
| | - Guannan Wang
- Chifengshan Jinhongling Nonferrous Mining Co., Ltd, Inner Mongolia, PR China
| | - Hai Cheng
- Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang, PR China
| | - Wenzhi Guo
- Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang, PR China
| | - Yanbiao Liu
- Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang, PR China
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Perkovich E, Laakman A, Mire S, Yoshida H. Conducting head-mounted eye-tracking research with young children with autism and children with increased likelihood of later autism diagnosis. J Neurodev Disord 2024; 16:7. [PMID: 38438975 PMCID: PMC10910727 DOI: 10.1186/s11689-024-09524-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 02/16/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND Over the past years, researchers have been using head-mounted eye-tracking systems to study young children's gaze behaviors in everyday activities through which children learn about the world. This method has great potential to further our understanding of how millisecond-level gaze behaviors create multisensory experiences and fluctuate around social environments. While this line of work can yield insight into early perceptual experiences and potential learning mechanisms, the majority of the work is exclusively conducted with typically-developing children. Sensory sensitivities, social-communication difficulties, and challenging behaviors (e.g., disruption, elopement) are common among children with developmental disorders, and they may represent potential methodological challenges for collecting high-quality data. RESULTS In this paper, we describe our research practices of using head-mounted eye trackers with 41 autistic children and 17 children with increased likelihood of later autism diagnosis without auditory or visual impairments, including those who are minimally or nonspeaking and/or have intellectual disabilities. The success rate in gathering data among children with autism was 92.68%. 3 of 41 children failed to complete the play-session, resulting in an 86.36% success rate among 1-4-year-olds and a 100.00% success rate among 5-8-year-olds. 1 of 17 children with increased likelihood of later autism diagnosis failed to complete the play-session, resulting in a success rate of 94.11%. There were numerous "challenging" behaviors relevant to the method. The most common challenging behaviors included taking the eye-tracking device off, elopement, and becoming distressed. Overall, among children with autism, 88.8% of 1-4-year-olds and 29.4% of 5-8-year-olds exhibited at least one challenging behavior. CONCLUSIONS Research capitalizing on this methodology has the potential to reveal early, socially-mediated gaze behaviors that are relevant for autism screening, diagnosis, and intervention purposes. We hope that our efforts in documenting our study methodology will help researchers and clinicians effectively study early naturally-occuring gaze behaviors of children during non-experimental contexts across the spectrum and other developmental disabilities using head-mounted eye-tracking. Ultimately, such applications may increase the generalizability of results, better reflect the diversity of individual characteristics, and offer new ways in which this method can contribute to the field.
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Affiliation(s)
| | - A Laakman
- University of Houston, Houston, TX, USA
| | - S Mire
- Baylor University, Waco, TX, USA
| | - H Yoshida
- University of Houston, Houston, TX, USA
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Menon P, El-Sadig M, Albastaki MF, Alzaabi H, Alhammadi S, Almehrzi M, Aljanaahi H, Al-Rifai RH, Masuadi EM, Grivna M. Collecting behavioral evidence from a highly mobile and seasonal population: A protocol for a survey on quad bike injuries. PLoS One 2024; 19:e0298059. [PMID: 38437203 PMCID: PMC10911601 DOI: 10.1371/journal.pone.0298059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 01/15/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND Quad bikes are popular recreational, four-wheeled bikes in the Middle East. Injury prevention programs targeting quad bike crashes in the United Arab Emirates (UAE) need evidence about the risk factors and behaviours associated with these crashes in the target population. This is a protocol for a study aiming to investigate quad bike rider behaviours and to assess the risk factors associated with related injuries in the UAE. METHODS This is a cross-sectional observational study aiming to describe a seasonal sport in a desert environment. With an estimated sample size of 451, the survey will follow a three-stage, location-based sampling strategy using the line-transect method. A sampling frame of desert locations with high injury incidences was developed, using Dubai ambulance injury records. Further expansion of the sampling frame was participatory, involving police, enthusiasts, emergency responders and gas station employees. The data collection will be limited to the winter months in fifteen high-injury desert locations across three major Emirates in the UAE. Trained researchers will observe the riders directly in the desert to note their riding habits, followed by a researcher-administered interview on riding and injury history. The interviews will be administered in Arabic and English using Qualtrics software on handheld tablets with offline and online entry mode. In addition, paper-based entry with the same format will be used as a contingency in busy quad bike locations. CONCLUSION The objective of this study protocol is to develop a comprehensive survey that will furnish substantial evidence for the formulation of effective injury prevention strategies. To enhance the credibility of the recorded riding behaviors, field observations will be employed. The uniqueness of this study lies in its innovative sampling strategy, custom-tailored to accommodate the highly mobile and transient population of desert bikers in the UAE.
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Affiliation(s)
- Preetha Menon
- Institute of Public Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Mohamed El-Sadig
- Institute of Public Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Marwan F. Albastaki
- College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Humaid Alzaabi
- College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Saleh Alhammadi
- College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Mansour Almehrzi
- College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Hamed Aljanaahi
- College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Rami H. Al-Rifai
- Institute of Public Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Emad M. Masuadi
- Institute of Public Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Michal Grivna
- Institute of Public Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
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15
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Sher A, Wootton BM, Paparo J. A preliminary investigation of the mediating roles of self-compassion and emotion dysregulation in the relationship between maladaptive perfectionism and obsessive- compulsive behaviors. J Clin Psychol 2024; 80:591-609. [PMID: 38236198 DOI: 10.1002/jclp.23640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 11/02/2023] [Accepted: 12/27/2023] [Indexed: 01/19/2024]
Abstract
INTRODUCTION Recent research has highlighted an association between maladaptive perfectionism and obsessive-compulsive disorder (OCD). However, the mechanisms underlying this relationship are not well understood. The primary aim of this preliminary study was to investigate whether self-compassion and emotion dysregulation independently mediated this relationship. The secondary aim was to determine whether serial mediation existed between these factors. Whether these relations held for overall obsessive-compulsive (OC) symptoms, versus distinct dimensions of OCD, was also of interest. METHOD Three hundred and ninety-two university students (Mage = 21.81, SD = 8.01), predominantly female (79.18%), participated in an online questionnaire that included a dimensional measure of OCD. Scales assessing maladaptive perfectionism, self-compassion, emotion dysregulation, and negative emotion states were also included. RESULTS Greater maladaptive perfectionism was related to more severe OCD. Emotion dysregulation, but not self-compassion, independently mediated this relationship. A serial mediation relationship was found, in that greater maladaptive perfectionism was associated with lower self-compassion, which was linked to greater emotion dysregulation, and in turn related to more severe OC behaviors. In addition, distinct patterns emerged for separate OC dimensions. CONCLUSIONS These findings highlight emotion regulation and self-compassion as potential targets for OCD prevention, especially in individuals with symptoms in the symmetry and unacceptable thoughts dimensions.
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Affiliation(s)
- Alyssa Sher
- School of Psychological Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - Bethany M Wootton
- Graduate School of Health, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Josephine Paparo
- School of Psychological Sciences, Macquarie University, Sydney, New South Wales, Australia
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16
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Cox LM, Tatematsu BK, Guo L, LeServe DS, Mayrink J, Oliveira MG, Donnelly D, Fonseca RC, Lemos L, Lanser TB, Rosa AC, Lopes JR, Schwerdtfeger LA, Ribeiro GFC, Lobo ELC, Moreira TG, Oliveira AG, Weiner HL, Rezende RM. Gamma-delta T cells suppress microbial metabolites that activate striatal neurons and induce repetitive/ compulsive behavior in mice. Brain Behav Immun 2024; 117:242-254. [PMID: 38281671 DOI: 10.1016/j.bbi.2024.01.214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 12/01/2023] [Accepted: 01/18/2024] [Indexed: 01/30/2024] Open
Abstract
Intestinal γδ T cells play an important role in shaping the gut microbiota, which is critical not only for maintaining intestinal homeostasis but also for controlling brain function and behavior. Here, we found that mice deficient for γδ T cells (γδ-/-) developed an abnormal pattern of repetitive/compulsive (R/C) behavior, which was dependent on the gut microbiota. Colonization of WT mice with γδ-/- microbiota induced R/C behavior whereas colonization of γδ-/- mice with WT microbiota abolished the R/C behavior. Moreover, γδ-/- mice had elevated levels of the microbial metabolite 3-phenylpropanoic acid in their cecum, which is a precursor to hippurate (HIP), a metabolite we found to be elevated in the CSF. HIP reaches the striatum and activates dopamine type 1 (D1R)-expressing neurons, leading to R/C behavior. Altogether, these data suggest that intestinal γδ T cells shape the gut microbiota and their metabolites and prevent dysfunctions of the striatum associated with behavior modulation.
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Affiliation(s)
- Laura M Cox
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Bruna K Tatematsu
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Lydia Guo
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Danielle S LeServe
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Julia Mayrink
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Marilia G Oliveira
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Dustin Donnelly
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Roberta C Fonseca
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Luisa Lemos
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Toby B Lanser
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Ana C Rosa
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Juliana R Lopes
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Luke A Schwerdtfeger
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Gabriela F C Ribeiro
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Eduardo L C Lobo
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Thais G Moreira
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Andre G Oliveira
- Department of Biophysics and Physiology, Biologic Institutes of Sciences, Federal University of Minas Gerais, Brazil
| | - Howard L Weiner
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Rafael M Rezende
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
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Wang PY, Lin CH, Yang WC. Electroconvulsive Therapy for Obsessive and Compulsive Symptoms in Preclinical Huntington Disease: A Case Report. J ECT 2024; 40:e3-e4. [PMID: 38411581 DOI: 10.1097/yct.0000000000000961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
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Radomsky AS, Ouellet-Courtois C, Golden E, Senn JM, Parrish CL. Putting things right: An experimental investigation of memory biases related to symmetry, ordering and arranging behaviour. J Behav Ther Exp Psychiatry 2024; 82:101914. [PMID: 37793286 DOI: 10.1016/j.jbtep.2023.101914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 08/17/2023] [Accepted: 09/27/2023] [Indexed: 10/06/2023]
Abstract
BACKGROUND AND OBJECTIVES Research indicates the presence of both explicit and implicit memory biases for threat. However, empirical support for the presence of memory biases related to symmetry, ordering and arranging is lacking, despite the fact that many individuals report anxiety associated with their personal belongings being out of place. The aim of this experiment was to examine memory biases for disorderliness and their associations with symmetry, ordering and arranging symptoms. METHODS Eighty undergraduate participants were assigned to one of four conditions, consisting of rooms in which objects were arranged according to different levels of disorderliness (orderly, slightly disorderly, slightly orderly, and disorderly). Participants next completed a memory task in which their memory for disordered vs. ordered objects was assessed. Measures of OCD symptoms, preference for symmetry, OCD belief domains, anxiety and depression were completed. RESULTS Analyses indicated that participants in the slightly disorderly condition showed significantly better recall and recognition for the disordered items than for the ordered items, and that those in the slightly orderly condition showed the same pattern in recall, but not recognition. No associations were found between a preference for symmetry and memory biases. LIMITATIONS The sample scored particularly low on our measure of symptoms of preference for symmetry, compromising the generalizability of our results. CONCLUSIONS Findings provide evidence for a general memory bias for disorderliness, although this bias does not appear to be associated with symmetry, ordering and arranging symptoms. Results are discussed from a cognitive-behavioural perspective with the consideration of feelings of incompleteness.
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Affiliation(s)
- Adam S Radomsky
- Concordia University, Department of Psychology, 7141 Rue Sherbrooke Ouest, Montreal, Quebec, H4B 1R6, Canada.
| | - Catherine Ouellet-Courtois
- Concordia University, Department of Psychology, 7141 Rue Sherbrooke Ouest, Montreal, Quebec, H4B 1R6, Canada
| | - Elissa Golden
- Concordia University, Department of Psychology, 7141 Rue Sherbrooke Ouest, Montreal, Quebec, H4B 1R6, Canada
| | - Jessica M Senn
- Concordia University, Department of Psychology, 7141 Rue Sherbrooke Ouest, Montreal, Quebec, H4B 1R6, Canada
| | - Chris L Parrish
- Concordia University, Department of Psychology, 7141 Rue Sherbrooke Ouest, Montreal, Quebec, H4B 1R6, Canada
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Pohle A, Jell P, Klug C. Plectronoceratids (Cephalopoda) from the latest Cambrian at Black Mountain, Queensland, reveal complex three-dimensional siphuncle morphology, with major taxonomic implications. PeerJ 2024; 12:e17003. [PMID: 38436030 PMCID: PMC10909373 DOI: 10.7717/peerj.17003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 02/05/2024] [Indexed: 03/05/2024] Open
Abstract
The Plectronoceratida includes the earliest known cephalopod fossils and is thus fundamental to a better understanding of the origin and early evolution of this group of molluscs. The bulk of described material comes from the late Cambrian Fengshan Formation in North China with isolated occurrences in South China, Laurentia, Kazakhstan and Siberia. Knowledge of their morphology and taxonomy is limited in that most specimens were only studied as longitudinal sections, which are prone to misinterpretations due to variations in the plane of section. We describe more than 200 new specimens, which exceeds the entire hitherto published record of plectronoceratids. The material was collected by Mary Wade and colleagues during the 1970s and 1980s, from the lower Ninmaroo Formation at Black Mountain (Mount Unbunmaroo), Queensland, Australia. Despite the collecting effort, diverse notes and early incomplete drafts, Mary Wade never published this material before her death in 2005. The specimens provide novel insights into the three-dimensional morphology of the siphuncle based on abundant material, prompting a general revision of the order Plectronoceratida. We describe Sinoeremoceras marywadeae sp. nov. from numerous, well-preserved specimens, allowing investigation of ontogenetic trajectories and intraspecific variability, which in turn enables improved interpretations of the three-dimensional siphuncle morphology. The siphuncle of S. marywadeae sp. nov. and other plectronoceratids is characterised by highly oblique segments, an elongated middorsal portion of the septal neck (= septal flap) and laterally expanded segments that extend dorsally relative to the septal flap (= siphuncular bulbs). We show that this complex siphuncular structure has caused problems of interpretation because it was studied mainly from longitudinal sections, leading to the impression that there were large differences between specimens and supposed species. We revise the order Protactinoceratida and the families Protactinoceratidae and Balkoceratidae as junior synonyms of the Plectronoceratida and Plectronoceratidae, respectively. We reduce the number of valid genera from eighteen (including one genus formerly classified as an ellesmeroceratid) to three: Palaeoceras Flower, 1954, Plectronoceras Kobayashi, 1935 and Sinoeremoceras Kobayashi, 1933. We accept 10 valid species to which the 68 previously established species may be assigned. Sinoeremoceras contains 8 of the 10 plus the new species. Two species, previously referred to ellesmeroceratid genera, are transferred to Sinoeremoceras. This revised scheme groups plectronoceratids into distinct geographically and stratigraphically separated species, which better reflects biological realities and removes bias caused by preparation techniques. North China remains important containing the highest known diversity and was likely a centre of cephalopod diversification.
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Affiliation(s)
- Alexander Pohle
- Palaeontological Institute and Museum, University of Zurich, Zürich, Switzerland
- Institute of Geology, Mineralogy and Geophysics, Ruhr University Bochum, Bochum, Germany
| | - Peter Jell
- School of Earth Sciences, University of Queensland, St. Lucia, Queensland, Australia
| | - Christian Klug
- Palaeontological Institute and Museum, University of Zurich, Zürich, Switzerland
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Surr C, Marsden L, Griffiths A, Cox S, Fossey J, Martin A, Prevost AT, Walshe C, Walwyn R. Researchers' experiences of the design and conduct challenges associated with parallel-group cluster-randomised trials and views on a novel open-cohort design. PLoS One 2024; 19:e0297184. [PMID: 38394190 PMCID: PMC10889884 DOI: 10.1371/journal.pone.0297184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 12/29/2023] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Two accepted designs exist for parallel-group cluster-randomised trials (CRTs). Closed-cohort designs follow the same individuals over time with a single recruitment period before randomisation, but face challenges in settings with high attrition. (Repeated) cross-sectional designs recruit at one or more timepoints before and/or after randomisation, collecting data from different individuals present in the cluster at these timepoints, but are unsuitable for assessment of individual change over time. An 'open-cohort' design allows individual follow-up with recruitment before and after cluster-randomisation, but little literature exists on acceptability to inform their use in CRTs. AIM To document the views and experiences of expert trialists to identify: a) Design and conduct challenges with established parallel-group CRT designs,b) Perceptions of potential benefits and barriers to implementation of open-cohort CRTs,c) Methods for minimising, and investigating the impact of, bias in open-cohort CRTs. METHODS Qualitative consultation via two expert workshops including triallists (n = 24) who had worked on CRTs over a range of settings. Workshop transcripts were analysed using Descriptive Thematic Analysis utilising inductive and deductive coding. RESULTS Two central organising concepts were developed. Design and conduct challenges with established CRT designs confirmed that current CRT designs are unable to deal with many of the complex research and intervention circumstances found in some trial settings (e.g. care homes). Perceptions of potential benefits and barriers of open cohort designs included themes on: approaches to recruitment; data collection; analysis; minimising/investigating the impact of bias; and how open-cohort designs might address or present CRT design challenges. Open-cohort designs were felt to provide a solution for some of the challenges current CRT designs present in some settings. CONCLUSIONS Open-cohort CRT designs hold promise for addressing the challenges associated with standard CRT designs. Research is needed to provide clarity around definition and guidance on application.
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Affiliation(s)
- Claire Surr
- Centre for Dementia Research, Leeds Beckett University, Leeds, United Kingdom
| | - Laura Marsden
- Clinical Trials Research Unit, University of Leeds, Leeds, United Kingdom
| | - Alys Griffiths
- Institute of Population Health, University of Liverpool, Liverpool, United Kingdom
| | - Sharon Cox
- Department of Behavioural Science and Health, UCL, London, United Kingdom
| | - Jane Fossey
- Faculty of Health and Life Sciences, University of Exeter, Exeter, United Kingdom
| | - Adam Martin
- Academic Unit of Health Economics, University of Leeds, Leeds, United Kingdom
| | - A. Toby Prevost
- Nightingale-Saunders Clinical Trials & Epidemiology Unit, Kings College London, London, United Kingdom
| | - Catherine Walshe
- International Observatory on End of Life Care, Lancaster University, Lancaster, United Kingdom
| | - Rebecca Walwyn
- Clinical Trials Research Unit, University of Leeds, Leeds, United Kingdom
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Toivainen S, Xu L, Gobbo F, Della Valle A, Coppola A, Heilig M, Domi E. Different mechanisms underlie compulsive alcohol self-administration in male and female rats. Biol Sex Differ 2024; 15:17. [PMID: 38368341 PMCID: PMC10874042 DOI: 10.1186/s13293-024-00592-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 02/09/2024] [Indexed: 02/19/2024] Open
Abstract
BACKGROUND Sex is an important factor in the progression and treatment of alcohol addiction, and therapeutic approaches may have to be tailored to potential sex differences. This highlights the importance of understanding sex differences in behaviors that reflect key elements of clinical alcohol addiction, such as continued use despite negative consequences ("compulsive use"). Studies in experimental animals can help provide an understanding of the role sex plays to influence these behaviors. METHODS Large populations of genetically heterogeneous male and female Wistar rats were tested in an established model of compulsive alcohol self-administration, operationalized as alcohol responding despite contingent foot shock punishment. We also tested baseline (fixed ratio, unpunished) operant alcohol self-administration, motivation to self-administer alcohol (progressive ratio), and temporal discounting for alcohol reward. In search of predictors of compulsivity, animals were screened for novelty-induced place preference, anxiety-like behavior, pain sensitivity and corticosterone levels. The estrous cycle was monitored throughout the study. RESULTS Unpunished self-administration of alcohol did not differ between males and females when alcohol intake was corrected for body weight. Overall, females showed higher levels of compulsive responding for alcohol. Compulsive response rates showed bimodal distributions in male but not in female rats when intermediate shock intensities were used (0.2 and 0.25 mA); at higher shock intensities, responding was uniformly suppressed in both males and females. We also found less steep discounting in females when alcohol was devalued by delaying its delivery. Males exhibited a stronger motivation to obtain alcohol under unpunished conditions, while females showed higher corticosterone levels at baseline. Factor analysis showed that an underlying dimension related to stress and pain predicted compulsivity in females, while compulsivity in males was predicted by a reward factor. We did not find differences in alcohol-related behaviors throughout the various stages of the estrous cycle. CONCLUSIONS Our results suggest that mechanisms promoting compulsivity, a key feature of alcohol addiction, likely differ between males and females. This underscores the importance of considering sex as a biological variable in both preclinical and clinical research, and has potential treatment implications in alcohol addiction.
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Affiliation(s)
- Sanne Toivainen
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, S-581 85, Linköping, Sweden
| | - Li Xu
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, S-581 85, Linköping, Sweden
| | - Francesco Gobbo
- Centre for Discovery Brain Sciences, University of Edinburgh, 1 George Square, Edinburgh, EH8 9JZ, UK
| | - Andrea Della Valle
- School of Pharmacy, Center for Neuroscience, University of Camerino, 62032, Camerino, Italy
| | - Andrea Coppola
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, S-581 85, Linköping, Sweden
| | - Markus Heilig
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, S-581 85, Linköping, Sweden
| | - Esi Domi
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, S-581 85, Linköping, Sweden.
- School of Pharmacy, Center for Neuroscience, University of Camerino, 62032, Camerino, Italy.
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22
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Vassileva J, Psederska E. Compulsivity and Impulsivity Dimensions as Familial Neurocognitive Markers of Heroin Addiction. Biol Psychiatry Cogn Neurosci Neuroimaging 2024; 9:135-136. [PMID: 38326009 DOI: 10.1016/j.bpsc.2023.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 12/22/2023] [Indexed: 02/09/2024]
Affiliation(s)
- Jasmin Vassileva
- Department of Psychiatry, Virginia Commonwealth University, Richmond, Virginia; Institute for Drug and Alcohol Studies, Virginia Commonwealth University, Richmond, Virginia.
| | - Elena Psederska
- Department of Cognitive Science and Psychology, New Bulgarian University, Sofia, Bulgaria
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23
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Donald JN, Ciarrochi J, Guo J. Connected or Cutoff? A 4-Year Longitudinal Study of the Links Between Adolescents' Compulsive Internet Use and Social Support. Pers Soc Psychol Bull 2024; 50:299-313. [PMID: 36350186 DOI: 10.1177/01461672221127802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
As the online world plays an increasing role in young peoples' lives, research on compulsive internet use (CIU) is receiving growing attention. Given the social richness of the online world, there is a need to better understand how CIU influences adolescents' social support and vice versa. Drawing on ecological systems theory, we examined the longitudinal links between adolescents' CIU and perceived social support from three sources (parents, teachers, and friends) across 4 critical years of adolescence (Grades 8-11). Using random intercept cross-lagged modeling, we found that CIU consistently preceded reduced social support from teachers, whereas social support from parents preceded increases in CIU over time. We discuss the implications of our findings for parents and schools seeking to support young people experiencing CIU.
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Affiliation(s)
- James N Donald
- The University of Sydney Business School, Darlington, New South Wales, Australia
| | - Joseph Ciarrochi
- Australian Catholic University, North Sydney, New South Wales, Australia
| | - Jiesi Guo
- Australian Catholic University, North Sydney, New South Wales, Australia
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24
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Wilkins VM, Kiosses DN. Developing Psychosocial Interventions for Late-Life Depression and Comorbid Hoarding Disorder. Am J Geriatr Psychiatry 2024; 32:148-150. [PMID: 37980198 DOI: 10.1016/j.jagp.2023.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 10/07/2023] [Indexed: 11/20/2023]
Affiliation(s)
- Victoria M Wilkins
- Weill Cornell Medicine (VMW, DNK), Weill-Cornell Institute of Geriatric Psychiatry, White Plains, NY
| | - Dimitris N Kiosses
- Weill Cornell Medicine (VMW, DNK), Weill-Cornell Institute of Geriatric Psychiatry, White Plains, NY.
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25
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Kassel MT, Kryza-Lacombe M, Insel PS, Rhodes E, Satre DD, Nelson JC, Tosun D, Mathews CA, Mackin RS. Hoarding Symptoms in Late Life Depression are Associated With Greater Executive Dysfunction and Disability and Poorer Response to Depression Treatment. Am J Geriatr Psychiatry 2024; 32:137-147. [PMID: 37770349 PMCID: PMC10872841 DOI: 10.1016/j.jagp.2023.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 08/10/2023] [Accepted: 08/12/2023] [Indexed: 09/30/2023]
Abstract
OBJECTIVES Late life depression (LLD) and hoarding disorder (HD) are common in older adults and characterized by executive dysfunction and disability. We aimed to determine the frequency of co-occurring HD in LLD and examine hoarding severity as an additional contributor to executive dysfunction, disability, and response to psychotherapy for LLD. DESIGN Cross-sectional. SETTING Outpatient psychiatry program. PARTICIPANTS Eighty-three community-dwelling adults ages 65-90 with LLD. INTERVENTION Problem-solving therapy. MEASUREMENTS Measures of executive function, disability, depression, and hoarding severity were completed at post-treatment. Pearson's chi-squared tests evaluated group differences in rates of cognitive impairment, disability, and depression treatment response between participants with HD (LLD+HD) and LLD only. Separate linear regressions assessed associations between hoarding severity and executive function, disability, and psychotherapy response. Covariates included age, education, gender, and depression severity. RESULTS 30.1% (25/83) of LLD participants met HD criteria. Relative to LLD, LLD+HD participants demonstrated greater impairment rates on measures of executive function (Letter-Number-Sequencing, X2(1)=4.0, p = 0.045; Stroop-Interference, X2(1) = 4.8, p = 0.028). Greater hoarding severity was associated with poorer executive functioning performance (Letter-Number-Sequencing (t[70] = -2.1, β = -0.05, p = 0.044), Digit-Span (t[71] = -2.4, β = -0.07, p = 0.019), Letter-Fluency (t[ 71] = -2.8, β = -0.24, p = 0.006)). Rates of disability were significantly higher for LLD+HD (88.0%) than LLD (62.3%), (X2[1] = 5.41, p = 0.020) and higher hoarding severity was related to greater disability (t[72] = 2.97, β = 0.13, p = 0.004). Depression treatment response rates were significantly lower for LLD+HD (24.0%) compared to LLD (48.3%), X2(1) = 4.26, p = 0.039, and HD status predicted psychotherapy response, t(67) = -2.15, β = -15.6, p = 0.035. CONCLUSIONS We found 30.1% co-occurrence of HD in LLD, which was accompanied by greater executive dysfunction, disability, and poorer response to depression treatment. Results underscore the need for increased screening of hoarding behaviors in LLD and tailored interventions for this LLD+HD group.
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Affiliation(s)
- Michelle T Kassel
- Mental Illness Research, Education, and Clinical Centers (MTK, MKL, ER, RSM), San Francisco Veterans Affairs Health Care System, San Francisco, CA; Department of Psychiatry and Behavioral Sciences (MTK, MKL, PSI, ER, DDS, JCN, RSM), University of California San Francisco, San Francisco, CA.
| | - Maria Kryza-Lacombe
- Mental Illness Research, Education, and Clinical Centers (MTK, MKL, ER, RSM), San Francisco Veterans Affairs Health Care System, San Francisco, CA; Department of Psychiatry and Behavioral Sciences (MTK, MKL, PSI, ER, DDS, JCN, RSM), University of California San Francisco, San Francisco, CA
| | - Philip S Insel
- Department of Psychiatry and Behavioral Sciences (MTK, MKL, PSI, ER, DDS, JCN, RSM), University of California San Francisco, San Francisco, CA
| | - Emma Rhodes
- Mental Illness Research, Education, and Clinical Centers (MTK, MKL, ER, RSM), San Francisco Veterans Affairs Health Care System, San Francisco, CA; Department of Psychiatry and Behavioral Sciences (MTK, MKL, PSI, ER, DDS, JCN, RSM), University of California San Francisco, San Francisco, CA
| | - Derek D Satre
- Department of Psychiatry and Behavioral Sciences (MTK, MKL, PSI, ER, DDS, JCN, RSM), University of California San Francisco, San Francisco, CA; Division of Research (DDS), Kaiser Permanente Northern California, Oakland, CA
| | - J Craig Nelson
- Department of Psychiatry and Behavioral Sciences (MTK, MKL, PSI, ER, DDS, JCN, RSM), University of California San Francisco, San Francisco, CA
| | - Duygu Tosun
- Department of Radiology and Biomedical Imaging (DT), University of California San Francisco, San Francisco, CA
| | - Carol A Mathews
- Department of Psychiatry and Center for OCD, Anxiety and Related Disorders (CAM), University of Florida, Gainesville, FL
| | - R Scott Mackin
- Mental Illness Research, Education, and Clinical Centers (MTK, MKL, ER, RSM), San Francisco Veterans Affairs Health Care System, San Francisco, CA; Department of Psychiatry and Behavioral Sciences (MTK, MKL, PSI, ER, DDS, JCN, RSM), University of California San Francisco, San Francisco, CA
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26
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Park L, Ward DE, Naragon-Gainey K, Fujita K, Koefler N. I'm Still Spending: Financial Contingency of Self-Worth Predicts Financial Motivational Conflict and Compulsive Buying. Pers Soc Psychol Bull 2024; 50:232-252. [PMID: 36218360 DOI: 10.1177/01461672221119356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
People with financially contingent self-worth (FCSW) base their self-esteem on money and feel pressured to achieve financial success. However, the present research suggests such individuals may be vulnerable to compulsive buying and experiencing distress and impairment in their lives from engaging in this maladaptive behavior (Study 1a-1b). Study 2 identified a key mechanism: People with FCSW experience more motivational conflict between wanting to spend (vs. not spend) their money, which predicts greater compulsive buying intentions and anticipated distress from making excessive purchases. A 5-week diary study revealed that FCSW-on average and at a weekly level-predicted greater perceived financial motivational conflict and more compulsive buying, distress, and impairment in life (Study 3). People with FCSW experience more financial motivational conflict, independent of beliefs about spending implying wealth or feeling pressured to spend to display one's wealth to others (Study 4). Implications and future directions are discussed.
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Affiliation(s)
- Lora Park
- University at Buffalo, The State University of New York, USA
| | - Deborah E Ward
- University at Buffalo, The State University of New York, USA
- Saginaw Valley State University, University Center, MI, USA
| | | | | | - Nicole Koefler
- University at Buffalo, The State University of New York, USA
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27
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Bhatt S, Mishra S, Singh A. Compulsive Drinking Behavior, Anger and Self-Esteem Among Patients with Alcohol Dependence Syndrome. Psychiatry 2024; 87:99-100. [PMID: 38294798 DOI: 10.1080/00332747.2024.2306577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
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28
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Vaudo AD, Dyer LA, Leonard AS. Pollen nutrition structures bee and plant community interactions. Proc Natl Acad Sci U S A 2024; 121:e2317228120. [PMID: 38190523 PMCID: PMC10801918 DOI: 10.1073/pnas.2317228120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 11/19/2023] [Indexed: 01/10/2024] Open
Abstract
As bees' main source of protein and lipids, pollen is critical for their development, reproduction, and health. Plant species vary considerably in the macronutrient content of their pollen, and research in bee model systems has established that this variation both modulates performance and guides floral choice. Yet, how variation in pollen chemistry shapes interactions between plants and bees in natural communities is an open question, essential for both understanding the nutritional dynamics of plant-pollinator mutualisms and informing their conservation. To fill this gap, we asked how pollen nutrition (relative protein and lipid content) sampled from 109 co-flowering plant species structured visitation patterns observed among 75 subgenera of pollen-collecting bees in the Great Basin/Eastern Sierra region (USA). We found that the degree of similarity in co-flowering plant species' pollen nutrition predicted similarity among their visitor communities, even after accounting for floral morphology and phylogeny. Consideration of pollen nutrition also shed light on the structure of this interaction network: Bee subgenera and plant genera were arranged into distinct, interconnected groups, delineated by differences in pollen macronutrient values, revealing potential nutritional niches. Importantly, variation in pollen nutrition alone (high in protein, high in lipid, or balanced) did not predict the diversity of bee visitors, indicating that plant species offering complementary pollen nutrition may be equally valuable in supporting bee diversity. Nutritional diversity should thus be a key consideration when selecting plants for habitat restoration, and a nutritionally explicit perspective is needed when considering reward systems involved in the community ecology of pollination.
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Affiliation(s)
- Anthony D. Vaudo
- Department of Biology, University of Nevada, Reno, NV89557
- Rocky Mountain Research Station, United States Department of Agriculture Forest Service, Moscow, ID83843
| | - Lee A. Dyer
- Department of Biology, University of Nevada, Reno, NV89557
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29
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Ferrante GS, Vasconcelos Nakamura LH, Sampaio S, Filho GPR, Meneguette RI. Evaluating YOLO architectures for detecting road killed endangered Brazilian animals. Sci Rep 2024; 14:1353. [PMID: 38228808 DOI: 10.1038/s41598-024-52054-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 01/12/2024] [Indexed: 01/18/2024] Open
Abstract
Wildlife roadkill is a recurring, dangerous problem that affects both humans and animals and has received increasing attention from environmentalists worldwide. Addressing this problem is difficult due to the high investments required in road infrastructure to effectively reduce wildlife vehicle collisions. Despite recent applications of machine learning techniques in low-cost and economically viable detection systems, e.g., for alerting drivers about the presence of animals and collecting statistics on endangered animal species, the success and wide adoption of these systems depend heavily on the availability of data for system training. The lack of training data negatively impacts the feature extraction of machine learning models, which is crucial for successful animal detection and classification. In this paper, we evaluate the performance of several state-of-the-art object detection models on limited data for model training. The selected models are based on the YOLO architecture, which is well-suited for and commonly used in real-time object detection. These include the YoloV4, Scaled-YoloV4, YoloV5, YoloR, YoloX, and YoloV7 models. We focus on Brazilian endangered animal species and use the BRA-Dataset for model training. We also assess the effectiveness of data augmentation and transfer learning techniques in our evaluation. The models are compared using summary metrics such as precision, recall, mAP, and FPS and are qualitatively analyzed considering classic computer vision problems. The results show that the architecture with the best results against false negatives is Scaled-YoloV4, while the best FPS detection score is the nano version of YoloV5.
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Affiliation(s)
- Gabriel Souto Ferrante
- Institute of Science Mathematics and Computer Science, University of São Paulo, 400 Trabalhador São-carlense Avenue, São Carlos, São Paulo, 13566-590, Brazil.
| | - Luis Hideo Vasconcelos Nakamura
- Departament of Informatics, Federal Institute of São Paulo - Campus Catanduva, 239 Pastor José Dutra de Moraes Avenue, Catanduva, São Paulo, 15808-305, Brazil
| | - Sandra Sampaio
- Department of Computer Science, University of Manchester, Oxford Rd, Manchester, M13 9PL, UK
| | - Geraldo Pereira Rocha Filho
- Department of Exact and Technological Sciences, State University of Southwest Bahia, Estr. Bem Querer, Km-04, Vitória da Conquista, BA, 45083-900, Brazil
| | - Rodolfo Ipolito Meneguette
- Institute of Science Mathematics and Computer Science, University of São Paulo, 400 Trabalhador São-carlense Avenue, São Carlos, São Paulo, 13566-590, Brazil
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30
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Robinson T, Hill S, Orozco-Leal G, Kernohan A, King W, Oluboyede Y. Valuing selected WAItE health states using the Time Trade-Off methodology: findings from an online interviewer-assisted remote survey. J Patient Rep Outcomes 2024; 8:6. [PMID: 38214796 PMCID: PMC10786771 DOI: 10.1186/s41687-023-00674-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 12/06/2023] [Indexed: 01/13/2024] Open
Abstract
PURPOSE The Weight-Specific Adolescent Instrument for Economic Evaluation (WAItE) is a physical weight-specific patient reported outcome measure for use in adolescence. The purpose of this study was to use the Time Trade-Off (TTO) methodology, administered using an online interviewer-assisted remote survey, to obtain utility values for several health states from the WAItE descriptive system from a sample of the UK adult general population. METHODS The adult sample was gathered using a market research company and a sample of local residents. All participants completed the same interviewer-assisted remote survey, which included rating WAItE states of varying impairment using the TTO. RESULTS 42 adults completed the survey. Utility values were gathered for four health states, ranging from low impairment to the most severe health from the WAItE descriptive system (the Pits state). Consistent orderings of the WAItE health states were observed; the health state with the lowest level of impairment was valued highest and the Pits state was valued lowest. Several respondents (n = 7, 17%) considered the Pits state to be worse than death; however, the mean value of this health state was 0.23. CONCLUSIONS The utility value of the Pits state relative to death generated from this study will be used to anchor latent values for WAItE health states generated from a Discrete Choice Experiment onto the 0 = death, 1 = full health Quality Adjusted Life Year (QALY) scale as part of a valuation study for the WAItE in the UK population. This study also provides further evidence that interviewer-assisted digital studies are feasible for collecting TTO data.
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Affiliation(s)
- Tomos Robinson
- Health Economics Group, Population Health Sciences Institute, Newcastle University, Newcastle, UK.
| | | | - Giovany Orozco-Leal
- Health Economics Group, Population Health Sciences Institute, Newcastle University, Newcastle, UK
| | - Ashleigh Kernohan
- Health Economics Group, Population Health Sciences Institute, Newcastle University, Newcastle, UK
| | - William King
- Health Economics Group, Population Health Sciences Institute, Newcastle University, Newcastle, UK
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31
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Yue-Hong G, Yu-Kun L, Zhi-le G, Xiao-Yan Z, Wei-Ting Z, Bing L, Hong-Yi G, Qiong-Shuai L. A novel detection method for wheat aging based on the delayed luminescence. Sci Rep 2024; 14:1134. [PMID: 38212378 PMCID: PMC10784558 DOI: 10.1038/s41598-024-51563-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 01/06/2024] [Indexed: 01/13/2024] Open
Abstract
Wheat aging plays an important role in assessing storage wheat quality and its subsequent processing purposes. The conventional detection methods for wheat aging are mainly involved in chemical techniques, which are time-consuming as well as waste part of wheat samples for each detection. Although some physical detection methods have obtained gratifying results, it is extremely hard to expand their application fields but to stay in the theory stage. For this reason, a novel nondestructive detection model for wheat aging based on the delayed luminescence (DL) has been proposed in this paper. Specifically, after collecting enough sample data, we first took advantage of certain hyperbolic function to fit DL signal, and then used four parameters of the hyperbolic function to feature the decay trend of the DL signal. Secondly, in order to better feature the DL signal, we extracted other six features together with above four features to form the input feature vector. Finally, as the bidirectional long short-term memory (Bi-LSTM) network lacked error-correcting performance, the Bi-LSTM network based on Walsh coding (Walsh-Bi-LSTM) mechanism was proposed to establish the detection model, which made the detection model have the error-correcting performance by reasonably splitting the multi-classification target task. Shown by experimental results, the newly proposed wheat aging detection model is able to achieve 94.00% accuracy in the testing dataset, which can be used as a green and nondestructive method to timely reflect wheat aging states.
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Affiliation(s)
- Gong Yue-Hong
- School of Software, Pingdingshan University, Pingdingshan, 467000, China
- Henan International Joint Laboratory for Multidimensional Topology and Carcinogenic Characteristics Analysis of Atmospheric Particulate Matter PM2.5, Pingdingshan, 467000, China
| | - Liu Yu-Kun
- School of Software, Pingdingshan University, Pingdingshan, 467000, China.
| | - Gong Zhi-le
- School of Computer and Software, Pingdingshan Polytechnic College, Pingdingshan, 467000, China
| | - Zhong Xiao-Yan
- School of Software, Pingdingshan University, Pingdingshan, 467000, China
| | - Zhao Wei-Ting
- School of Software, Pingdingshan University, Pingdingshan, 467000, China
| | - Li Bing
- School of Software, Pingdingshan University, Pingdingshan, 467000, China
| | - Ge Hong-Yi
- School of Information Science and Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Lyu Qiong-Shuai
- School of Software, Pingdingshan University, Pingdingshan, 467000, China
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32
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Lee IB, Lee E, Han NE, Slavuj M, Hwang JW, Lee A, Sun T, Jeong Y, Baik JH, Park JY, Choi SY, Kwag J, Yoon BJ. Persistent enhancement of basolateral amygdala-dorsomedial striatum synapses causes compulsive-like behaviors in mice. Nat Commun 2024; 15:219. [PMID: 38191518 PMCID: PMC10774417 DOI: 10.1038/s41467-023-44322-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 12/08/2023] [Indexed: 01/10/2024] Open
Abstract
Compulsive behaviors are observed in a range of psychiatric disorders, however the neural substrates underlying the behaviors are not clearly defined. Here we show that the basolateral amygdala-dorsomedial striatum (BLA-DMS) circuit activation leads to the manifestation of compulsive-like behaviors. We revealed that the BLA neurons projecting to the DMS, mainly onto dopamine D1 receptor-expressing neurons, largely overlap with the neuronal population that responds to aversive predator stress, a widely used anxiogenic stressor. Specific optogenetic activation of the BLA-DMS circuit induced a strong anxiety response followed by compulsive grooming. Furthermore, we developed a mouse model for compulsivity displaying a wide spectrum of compulsive-like behaviors by chronically activating the BLA-DMS circuit. In these mice, persistent molecular changes at the BLA-DMS synapses observed were causally related to the compulsive-like phenotypes. Together, our study demonstrates the involvement of the BLA-DMS circuit in the emergence of enduring compulsive-like behaviors via its persistent synaptic changes.
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Affiliation(s)
- In Bum Lee
- Department of Life Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Eugene Lee
- Department of Brain and Cognitive Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Na-Eun Han
- Department of Life Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Marko Slavuj
- Department of Life Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Jeong Wook Hwang
- Department of Life Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Ahrim Lee
- Department of Life Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Taeyoung Sun
- Department of Life Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Yehwan Jeong
- Department of Life Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Ja-Hyun Baik
- Department of Life Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Jae-Yong Park
- School of Biosystems and Biomedical Sciences, College of Health Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Se-Young Choi
- Department of Physiology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, 03080, Republic of Korea
| | - Jeehyun Kwag
- Department of Brain and Cognitive Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Bong-June Yoon
- Department of Life Sciences, Korea University, Seoul, 02841, Republic of Korea.
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Amholt TT, Kurtzhals M, Melby PS, Stage A, Issartel J, O’Brien W, Belton S, Bølling M, Nielsen G, Bentsen P, Elsborg P. Feasibility and acceptability of the Promoting Pupils' Physical Literacy (3PL) intervention and its effectiveness research design: A study protocol. PLoS One 2024; 19:e0294916. [PMID: 38181014 PMCID: PMC10769070 DOI: 10.1371/journal.pone.0294916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 11/07/2023] [Indexed: 01/07/2024] Open
Abstract
Research has shown that physical activity (PA) is important for health throughout the lifespan. Therefore, it is important that children develop the individual prerequisites that enable participation in PA throughout life. The theoretical concept physical literacy (PL) and the research field of PL has described such personal competences and traits. However, to promote PL among children and lifelong PA, there is a demand for more high-quality interventions to be developed and tested. When targeting children, schools are an important setting. Despite the possibility of promoting PL during PE lessons, few well-tested interventions have been developed. In this study, we therefore aim to context adapt and feasibility test an already existing and promising PL intervention to a Danish school context. The ADAPT and MRC guidelines were followed to adapt the Promoting Pupils Physical Literacy (3PL) intervention. Through workshops with stakeholders, the intervention was adapted to fit Danish 4th and 5th graders. Four Danish schools were recruited in a wait list design. The feasibility and acceptability of both the intervention and the effect study design will be investigated. To investigate the intervention, weekly questionnaires, observations, and interviews will be conducted during the intervention period. The feasibility of the effect study design will be investigated by collecting baseline and endline data on pupils' PL and daily PA as well as parents' socioeconomic status. Expected outcomes include a TIDieR checklist, a revised, feasible, and acceptable intervention, and an effect study design protocol. This will contribute to important steps in the direction of making PL interventions more accessible for practice. Valid testing of intervention effectiveness enables stakeholders to make informed decisions grounded in evidence. This will strengthen the possibilities of a successful outcome and for a PL intervention that is more accessible for practice, which is important for scale up.
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Affiliation(s)
- Thea Toft Amholt
- Center for Clinical Research and Prevention, Copenhagen University Hospital–Bispebjerg and Frederiksberg, the Capital Region of Denmark, Copenhagen, Denmark
| | - Mette Kurtzhals
- Center for Clinical Research and Prevention, Copenhagen University Hospital–Bispebjerg and Frederiksberg, the Capital Region of Denmark, Copenhagen, Denmark
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Paulina Sander Melby
- Center for Clinical Research and Prevention, Copenhagen University Hospital–Bispebjerg and Frederiksberg, the Capital Region of Denmark, Copenhagen, Denmark
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Anna Stage
- Center for Clinical Research and Prevention, Copenhagen University Hospital–Bispebjerg and Frederiksberg, the Capital Region of Denmark, Copenhagen, Denmark
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Johann Issartel
- School of Health and Human Performance, Faculty of Science and Health, Dublin City University, Dublin, Ireland
| | - Wesley O’Brien
- Physical Education, Sports Studies and Arts Programme, School of Education, University College Cork, Cork, Ireland
| | - Sarahjane Belton
- School of Health and Human Performance, Faculty of Science and Health, Dublin City University, Dublin, Ireland
| | - Mads Bølling
- Center for Clinical Research and Prevention, Copenhagen University Hospital–Bispebjerg and Frederiksberg, the Capital Region of Denmark, Copenhagen, Denmark
- Research Centre for Pedagogy and Bildung, Program on Outdoor Pedagogy, VIA University College, Aarhus, Denmark
| | - Glen Nielsen
- Center for Clinical Research and Prevention, Copenhagen University Hospital–Bispebjerg and Frederiksberg, the Capital Region of Denmark, Copenhagen, Denmark
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Peter Bentsen
- Center for Clinical Research and Prevention, Copenhagen University Hospital–Bispebjerg and Frederiksberg, the Capital Region of Denmark, Copenhagen, Denmark
- Department of Geoscience and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
| | - Peter Elsborg
- Center for Clinical Research and Prevention, Copenhagen University Hospital–Bispebjerg and Frederiksberg, the Capital Region of Denmark, Copenhagen, Denmark
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Moccia L, di Luzio M, Conte E, Modica M, Ambrosecchia M, Ardizzi M, Lanzotti P, Kotzalidis GD, Janiri D, Di Nicola M, Janiri L, Gallese V, Sani G. Sense of agency and its disturbances: A systematic review targeting the intentional binding effect in neuropsychiatric disorders. Psychiatry Clin Neurosci 2024; 78:3-18. [PMID: 37755315 DOI: 10.1111/pcn.13601] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 07/12/2023] [Accepted: 09/19/2023] [Indexed: 09/28/2023]
Abstract
Sense of agency (SoA) indicates a person's ability to perceive her/his own motor acts as actually being her/his and, through them, to exert control over the course of external events. Disruptions in SoA may profoundly affect the individual's functioning, as observed in several neuropsychiatric disorders. This is the first article to systematically review studies that investigated intentional binding (IB), a quantitative proxy for SoA measurement, in neurological and psychiatric patients. Eligible were studies of IB involving patients with neurological and/or psychiatric disorders. We included 15 studies involving 692 individuals. Risk of bias was low throughout studies. Abnormally increased action-outcome binding was found in schizophrenia and in patients with Parkinson's disease taking dopaminergic medications or reporting impulsive-compulsive behaviors. A decreased IB effect was observed in Tourette's disorder and functional movement disorders, whereas increased action-outcome binding was found in patients with the cortico-basal syndrome. The extent of IB deviation from healthy control values correlated with the severity of symptoms in several disorders. Inconsistent effects were found for autism spectrum disorders, anorexia nervosa, and borderline personality disorder. Findings pave the way for treatments specifically targeting SoA in neuropsychiatric disorders where IB is altered.
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Affiliation(s)
- Lorenzo Moccia
- Department of Neuroscience, Section of Psychiatry, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Michelangelo di Luzio
- Child and Adolescent Neuropsychiatry Unit, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | - Eliana Conte
- Department of Neuroscience, Section of Psychiatry, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Marco Modica
- Department of Neuroscience, Section of Psychiatry, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Marianna Ambrosecchia
- Department of Medicine and Surgery, Unit of Neuroscience, University of Parma, Parma, Italy
| | - Martina Ardizzi
- Department of Medicine and Surgery, Unit of Neuroscience, University of Parma, Parma, Italy
| | - Pierluigi Lanzotti
- Department of Neuroscience, Section of Psychiatry, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Georgios D Kotzalidis
- Department of Neuroscience, Section of Psychiatry, Università Cattolica del Sacro Cuore, Rome, Italy
- NESMOS Department, University of Rome La Sapienza, Faculty of Medicine and Psychology, Sant'Andrea University Hospital, Rome, Italy
| | - Delfina Janiri
- Department of Neuroscience, Section of Psychiatry, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Marco Di Nicola
- Department of Neuroscience, Section of Psychiatry, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Luigi Janiri
- Department of Neuroscience, Section of Psychiatry, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Vittorio Gallese
- Department of Medicine and Surgery, Unit of Neuroscience, University of Parma, Parma, Italy
- Italian Academy for Advanced Studies in America at Columbia University, New York, New York, USA
| | - Gabriele Sani
- Department of Neuroscience, Section of Psychiatry, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
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Matinyan S, Filipcik P, Abrahams JP. Deep learning applications in protein crystallography. Acta Crystallogr A Found Adv 2024; 80:1-17. [PMID: 38189437 PMCID: PMC10833361 DOI: 10.1107/s2053273323009300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 10/24/2023] [Indexed: 01/09/2024] Open
Abstract
Deep learning techniques can recognize complex patterns in noisy, multidimensional data. In recent years, researchers have started to explore the potential of deep learning in the field of structural biology, including protein crystallography. This field has some significant challenges, in particular producing high-quality and well ordered protein crystals. Additionally, collecting diffraction data with high completeness and quality, and determining and refining protein structures can be problematic. Protein crystallographic data are often high-dimensional, noisy and incomplete. Deep learning algorithms can extract relevant features from these data and learn to recognize patterns, which can improve the success rate of crystallization and the quality of crystal structures. This paper reviews progress in this field.
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Affiliation(s)
| | | | - Jan Pieter Abrahams
- Biozentrum, Basel University, Basel, Switzerland
- Paul Scherrer Institute, Villigen, Switzerland
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Spahnie M, Matthews A, Kiss D, Ricks J, Miller W, Turner AN. Positive and Negative Social Consequences of Participating in a Sexual-Network Study. Ethics Hum Res 2024; 46:14-25. [PMID: 38240396 DOI: 10.1002/eahr.500196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Assessment of risks and benefits of study participation is standard practice preceding the initiation of human subjects research. Although tracking adverse events during research participation is routine, collecting information from participants about what they perceive as benefits is less common. We longitudinally tracked social risks and benefits of participation among a cohort of 241 men who have sex with men participating in a sexual health study to improve participants' experiences and enhance understanding of participant motivations to enroll and attend follow-up. Of the participants who returned for at least one follow-up visit (n = 217, 90%), most (n = 185, 85%) reported positive consequences resulting from participation. Reporting of negative social consequences was rare, and all concerned a stigmatized reaction from someone learning about the participant's involvement in a sexual health study. Better identification of both positive and negative consequences resulting from research participation may improve how researchers design, recruit, and conduct research.
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Affiliation(s)
- Morgan Spahnie
- Researcher at The Ohio State University Center for HOPES
| | | | - Dale Kiss
- Researcher at The Ohio State University Comprehensive Cancer Center
| | - JaNelle Ricks
- Assistant professor of health behavior and health promotion at The Ohio State University College of Public Health
| | - William Miller
- Professor of epidemiology at the University of North Carolina at Chapel Hill Gillings School of Public Health
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Brown RM, Ch'ng SS, Davis CC. Why did I eat that? Understanding the 'why' of compulsive behaviour towards food. Prog Neuropsychopharmacol Biol Psychiatry 2023; 127:110803. [PMID: 37245584 DOI: 10.1016/j.pnpbp.2023.110803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Affiliation(s)
- Robyn M Brown
- Department of Biochemistry and Pharmacology, University of Melbourne, Vic, Australia.
| | - Sarah S Ch'ng
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Vic, Australia
| | - Caroline C Davis
- School of Kinesiology and Health Science, Faculty of Health, York University, Toronto, Ontario, Canada
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Schoenthaler A, Francois F, Cho I, Ogedegbe G. Roadmap for embedding health equity research into learning health systems. BMJ Lead 2023; 7:261-265. [PMID: 37328265 DOI: 10.1136/leader-2022-000720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 06/02/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Achieving health equity is vital to fulfil the quadruple aim for optimal healthcare system performance. Traditionally, academic medicine and healthcare systems have focused their efforts on addressing health inequities with an emphasis on improving workforce diversity. Although this approach is an important requisite, a diverse workforce alone is not sufficient; rather holistic health equity should be established as the anchoring principal mission of all academic medical centres, residing at the intersection of clinical care, education, research and community. METHODS NYU Langone Health (NYULH) has embarked on significant institutional changes to position itself as an equity-focused learning health system. One-way NYULH accomplishes this is through the establishment of a health equity research roadmap, which serves as the organising framework through which we conduct embedded pragmatic research in our healthcare delivery system to target and eliminate health inequities across our tripartite mission of patient care, medical education and research. RESULTS This article outlines each of the six elements of the NYULH roadmap. These elements include: (1) developing processes for collecting accurate disaggregate data on race, ethnicity and language, sexual orientation and gender identity and disability; (2) using a data-driven approach to identify health equity gaps; (3) creating performance and metric-based quality improvement goals to measure progress toward elimination of health equity gaps; (4) investigating the root cause of the identified health equity gap; (5) developing and evaluating evidence-based solutions to address and resolve the inequities; and (6) continuous monitoring and feedback for system improvements. CONCLUSION Application of each element of the roadmap can provide a model for how academic medical centres can use pragmatic research to embed a culture of health equity into their health system.
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Affiliation(s)
| | - Fritz Francois
- Department of Medicine, NYU Langone Health, New York, New York, USA
| | - Ilseung Cho
- Department of Medicine, NYU Langone Health, New York, New York, USA
| | - Gbenga Ogedegbe
- Institute for Excellence in Health Equity, NYU Langone Health, New York, New York, USA
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Prelog PR, Palandacic AK. Hypersexuality during treatment with cariprazine in a patient with schizophrenia? A case report. BMC Psychiatry 2023; 23:935. [PMID: 38082232 PMCID: PMC10714445 DOI: 10.1186/s12888-023-05432-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 12/02/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Cariprazine is a third-generation antipsychotic with a unique mechanism of action. It functions as a partial agonist with high affinity for dopamine D2 and D3 and serotonin 5-HT1A receptors, an antagonist for 5-HT2A (moderate affinity) and 5-HT2B (high affinity) receptors. It binds to histamine H1 receptors and has a low affinity for 5-HT2C and alpha 1A-adrenergic receptors and no affinity for muscarinic (cholinergic) receptors. Among the troubling side effects, symptoms related to impulse control, such as hypersexuality, pathological gambling, compulsive shopping, compulsive eating etc., have been reported with the use of antipsychotic medications. However, no reports have been published regarding impulse control symptoms associated with cariprazine. We report a case of cariprazine-induced hypersexuality in a patient with schizophrenia, which was resolved by discontinuation of the medication. CASE PRESENTATION A 67-year-old Caucasian woman with schizophrenia was admitted to the hospital inpatient unit after she discontinued olanzapine and psychotic symptoms reappeared. Prior to that, she was in remission, taking olanzapine for approximately one year. After discontinuation, she experienced auditory hallucinations with persecutory delusions and became anergic and withdrawn, with blunted affect. Olanzapine was reintroduced, as it was proven successful in her past treatments. However, since there were no changes, especially in negative symptoms, cariprazine was added. Seven days after the introduction of cariprazine, the patient developed compulsive sexual behaviour. Therefore, cariprazine was discontinued, and the hypersexual behaviour was resolved. CONCLUSIONS In this case report, we describe hypersexual behaviour that could potentially be induced by cariprazine. As a single case study, conclusions cannot be drawn. Controlled studies are warranted to better determine causality and the significance of this possible side-effect of cariprazine.
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Affiliation(s)
- Polona Rus Prelog
- Centre for Clinical Psychiatry, University Psychiatric Clinic Ljubljana, Ljubljana, Slovenia.
- Medical Faculty Ljubljana, University of Ljubljana, Ljubljana, Slovenia.
| | - Anja Kokalj Palandacic
- Centre for Clinical Psychiatry, University Psychiatric Clinic Ljubljana, Ljubljana, Slovenia
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Hicks MM, Mouton-Odum S, Patyk KC, Zamora RJ, De Nadai AS. Latent class analysis of emotions experienced during compulsive hair-pulling episodes. J Behav Ther Exp Psychiatry 2023; 81:101882. [PMID: 37331096 DOI: 10.1016/j.jbtep.2023.101882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/11/2023] [Accepted: 05/23/2023] [Indexed: 06/20/2023]
Abstract
BACKGROUND AND OBJECTIVES Reasons for compulsive hair pulling are heterogeneous and not fully understood. Given that many people who experience compulsive hair pulling do not respond to treatment, identifying subgroups can inform potential mechanisms and treatment design. METHODS We sought to identify empirical subgroups among participants in an online treatment program for trichotillomania (N = 1728). A latent class analysis was used to identify patterns of emotions associated with compulsive hair-pulling episodes. RESULTS Six classes of participants were found which reflected three predominant themes. One theme reflected expected patterns, where emotional changes were seen following pulling. Two other themes were more surprising, where one reflected high overall emotional activation that did not show consistent change in response to pulling, and another showed low emotional activation overall. These results suggest that there are multiple types of hair-pulling and a sizeable group of people may benefit from treatment adjustments. LIMITATIONS Participants did not receive semi-structured diagnostic assessment. A majority of participants were Caucasian, and future research would benefit from increased participant diversity. Emotions associated with compulsive hair-pulling were measured across an entire treatment program, but the relationship between specific intervention components and change in specific emotions was not systematically collected. CONCLUSIONS While previous research has addressed overall phenomenology and comorbidity, the present study is the first to identify empirical subgroups of people who experience compulsive hair-pulling at the level of individual pulling episodes. Identified participant classes had distinguishing features that can aid in personalizing treatment to individual symptom presentations.
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Affiliation(s)
- Macy M Hicks
- Psychology Department, Texas State University, San Marcos, TX, USA.
| | - Suzanne Mouton-Odum
- Psychiatry and Behavioral Sciences, Baylor College of Medicine; Psychology Houston, PC, Director, Houston, TX, USA
| | | | - Ryan J Zamora
- McLean Hospital, Harvard Medical School, Belmont, MA, USA
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Miele C, Cabé J, Cabé N, Bertsch I, Brousse G, Pereira B, Moulin V, Barrault S. Measuring craving: A systematic review and mapping of assessment instruments. What about sexual craving? Addiction 2023; 118:2277-2314. [PMID: 37493019 DOI: 10.1111/add.16287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 05/31/2023] [Indexed: 07/27/2023]
Abstract
BACKGROUND AND AIMS Craving is central in the definition of addictive disorders because of its diagnostic and prognostic value. Its measurement is essential in clinical practice. Previous reviews provided a better overview of existing instruments; however, they do not consider emerging substances and behaviors such as sexual addictions. Our objectives were threefold: (1) to provide a systematic review of craving assessment instruments and their psychometric characteristics within a transdiagnostic approach, (2) to highlight and map their conceptual relationships and (3) to identify potential sexual craving assessment instruments. METHODS The review was conducted using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) methodology. The PubMed, Embase, PsychInfo and Cochrane/Central databases were searched for publications that met the following inclusion criterion: validation studies of craving assessment instruments, regardless of target substance or behavior. The original search identified 4561 references and included 147 articles. Each selected study was a peer-reviewed publication. RESULTS This review provides a synthesis of the psychometric properties of 36 original instruments and identified 93 variations of these instruments (e.g. translations). We were able to highlight five transdiagnostic families of instruments, each corresponding to a conceptual model. Only one instrument for assessing craving in the domain of compulsive sexual behavior, focused on pornography use, has been identified: the Pornography Craving Questionnaire. CONCLUSION This review mapped all craving assessment instruments from a transdiagnostic perspective, finding 36 original instruments and 93 variations. The evolution of instruments to measure craving mirrors the evolution of the concept of craving which has progressively integrated cognitive, conditioning and sensory dimensions, and attests to the importance of the context of assessment. Development of an instrument to measure 'sexual craving' is needed and could be based on the data from our review.
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Affiliation(s)
- Cécile Miele
- Laboratory QualiPsy, EE1901, Psychology Department, University of Tours, Tours, France
- Service d'Addictologie et de pathologies duelles, Pôle de psychiatrie, CHU de Clermont-Ferrand, Clermont-Ferrand Cedex, France
- Laboratoire Inter-universitaire de Psychologie Personnalité, Cognition, Changement Social (LIP/PC2S) Université de Grenoble Alpes, Grenoble, France
| | - Julien Cabé
- Service d'Addictologie et de pathologies duelles, Pôle de psychiatrie, CHU de Clermont-Ferrand, Clermont-Ferrand Cedex, France
- Université Clermont Auvergne, Clermont Auvergne INP, CHU Clermont-Ferrand, CNRS, Institut Pascal, Clermont-Ferrand, France
| | - Nicolas Cabé
- Service d'Addictologie, Centre Hospitalier Universitaire de Caen, Caen, France
- Normandie Université, UNICAEN, INSERM, PhIND 'Physiopathology and Imaging of Neurological Disorders', Institut Blood and Brain at Caen-Normandie, Cyceron, Caen, France
| | - Ingrid Bertsch
- Laboratory QualiPsy, EE1901, Psychology Department, University of Tours, Tours, France
- Unité de Consultation Psychiatrique Post-Pénale (UC3P), CHRU de Tours, Tours, France
| | - Georges Brousse
- Service d'Addictologie et de pathologies duelles, Pôle de psychiatrie, CHU de Clermont-Ferrand, Clermont-Ferrand Cedex, France
- Université Clermont Auvergne, Clermont Auvergne INP, CHU Clermont-Ferrand, CNRS, Institut Pascal, Clermont-Ferrand, France
| | - Bruno Pereira
- Direction de la Recherche Clinique et de l'Innovation, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Valérie Moulin
- Laboratoire Inter-universitaire de Psychologie Personnalité, Cognition, Changement Social (LIP/PC2S) Université de Grenoble Alpes, Grenoble, France
| | - Servane Barrault
- Laboratory QualiPsy, EE1901, Psychology Department, University of Tours, Tours, France
- Centre de Soins d'Accompagnement et de Prévention en Addictologie (CSAPA 37), CHRU of Tours, Tours, France
- Laboratory of Psychopathology and Health Processes, University of Paris, Boulogne-Billancourt, France
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Meira E Cruz M. The Price of Love: how sleep, and dysregulated clocks may account for its obsessive-compulsive related behaviors? CNS Spectr 2023; 28:647-648. [PMID: 36786159 DOI: 10.1017/s1092852923000056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Affiliation(s)
- Miguel Meira E Cruz
- Sleep Unit, Centro Cardiovascular da Universidade de Lisboa, Lisbon School of Medicine, Lisbon, Portugal
- European Sleep Center, Lisbon, Portugal
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Prados-Pardo Á, Martín-González E, Mora S, Martín C, Olmedo-Córdoba M, Pérez-Fernandez C, Sánchez-Santed F, Moreno-Montoya M. Reduced Expression of the Htr2a, Grin1, and Bdnf Genes and Cognitive Inflexibility in a Model of High Compulsive Rats. Mol Neurobiol 2023; 60:6975-6991. [PMID: 37523044 DOI: 10.1007/s12035-023-03506-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 07/12/2023] [Indexed: 08/01/2023]
Abstract
Compulsivity is a core symptom in different psychopathological disorders, characterized by excessive behaviors and behavioral inflexibility. The selection of high drinker (HD) versus low drinker (LD) rats by schedule-induced polydipsia (SIP) is a valid model for studying the compulsive phenotype. The compulsive HD rats showed cognitive inflexibility and reduced serotonin 2A (5-HT2A) receptor binding levels in the frontal cortex (FC). According to that, we hypothesize that compulsive HD rats might have an alteration in the cognitive control domain regarding inflexibility, assessed by spatial memory on the Morris Water Maze (MWM), working and reference memory by the Radial Arm Maze, and behavioral deficits in stimulus processing by the Novel Object Recognition test. The possible underlying mechanisms might be linked to the brain gene expression of 5HT2A, 5HT2C, glutamate NMDA receptors, and brain-derived neurotrophic factor (BDNF) in FC, hippocampus, and amygdala. HD rats confirmed a cognitive inflexibility profile on the reversal condition in the MWM compared to LD rats, while no differences were observed on stimulus processing, spatial, and working memory. Moreover, HD rats showed a reduced expression of the Htr2a, Grin1, and Bdnf genes in FC. Furthermore, there was a negative correlation between the relative expression of the Htr2a, Grin1, and Bdnf genes in FC and the level of compulsive water intake in HD rats on SIP. These data reveal that cognitive inflexibility may not be associated with a memory or stimulus processing deficit in compulsive individuals but may result by a region-specific alteration of the Htr2a, Grin1, and Bdnf gene expression in FC.
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Affiliation(s)
- Ángeles Prados-Pardo
- Department of Psychology and Health Research Center CEINSA, University of Almería, Ctra. Sacramento, s/n, 04120, Almería, Spain
| | - Elena Martín-González
- Department of Psychology and Health Research Center CEINSA, University of Almería, Ctra. Sacramento, s/n, 04120, Almería, Spain
| | - Santiago Mora
- Department of Neuroscience and Panum Institute, University of Copenhagen, Copenhagen, Denmark
| | - Carlos Martín
- Department of Psychology and Health Research Center CEINSA, University of Almería, Ctra. Sacramento, s/n, 04120, Almería, Spain
| | - Manuela Olmedo-Córdoba
- Department of Psychology and Health Research Center CEINSA, University of Almería, Ctra. Sacramento, s/n, 04120, Almería, Spain
| | - Cristian Pérez-Fernandez
- Department of Psychology and Health Research Center CEINSA, University of Almería, Ctra. Sacramento, s/n, 04120, Almería, Spain
| | - Fernando Sánchez-Santed
- Department of Psychology and Health Research Center CEINSA, University of Almería, Ctra. Sacramento, s/n, 04120, Almería, Spain
| | - Margarita Moreno-Montoya
- Department of Psychology and Health Research Center CEINSA, University of Almería, Ctra. Sacramento, s/n, 04120, Almería, Spain.
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Babiano-Espinosa L, Skarphedinsson G, Weidle B, Wolters LH, Compton S, Ivarsson T, Skokauskas N. eCBT Versus Standard Individual CBT for Paediatric Obsessive-Compulsive Disorder. Child Psychiatry Hum Dev 2023; 54:1567-1576. [PMID: 35460057 PMCID: PMC9028897 DOI: 10.1007/s10578-022-01350-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/11/2022] [Indexed: 11/23/2022]
Abstract
Obsessive-compulsive disorder (OCD) is characterized by recurring obsessions and compulsions often with severe impairment affecting 1-3% of children and adolescents. Cognitive behavioural therapy (CBT) is the therapeutic golden standard for paediatric OCD. However, face-to-face CBT is limited by accessibility, availability, and quality of delivery. Enhanced CBT (eCBT) a combination of face-to-face sessions at the clinic and treatment at home via webcam and a supportive app system aims to address some of these barriers. In this pilot study, we compared eCBT outcomes of 25 paediatric patients with OCD benchmarked against traditional face-to-face CBT (n = 269) from the Nordic Long-term OCD Treatment Study, the largest paediatric OCD CBT study to date. Pairwise comparisons showed no difference between eCBT and NordLOTS treatment outcomes. Mean estimate difference was 2.5 in favour of eCBT (95% CI - 0.3 to 5.3). eCBT compared to NordLOTS showed no significant differences between response and remission rates, suggesting similar effectiveness.
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Affiliation(s)
- Lucía Babiano-Espinosa
- Regional Centre for Child and Youth Mental Health and Child Welfare, Department of Mental Health, Norwegian University of Science and Technology, Klostergata 46, 7030 Trondheim, Norway
- Department of Child and Adolescent Psychiatry, St. Olav’s University Hospital, Trondheim, Norway
| | - Gudmundur Skarphedinsson
- Faculty of Psychology, University of Iceland, Nyi-Gardur, Saemundargata 12, 102 Reykjavík, Iceland
| | - Bernhard Weidle
- Regional Centre for Child and Youth Mental Health and Child Welfare, Department of Mental Health, Norwegian University of Science and Technology, Klostergata 46, 7030 Trondheim, Norway
- Department of Child and Adolescent Psychiatry, St. Olav’s University Hospital, Trondheim, Norway
| | - Lidewij H. Wolters
- Regional Centre for Child and Youth Mental Health and Child Welfare, Department of Mental Health, Norwegian University of Science and Technology, Klostergata 46, 7030 Trondheim, Norway
- Department of Clinical Psychology and Experimental Psychopathology, University of Groningen, Groningen, The Netherlands
- Accare Child Study Center, Groningen, The Netherlands
| | - Scott Compton
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC USA
| | - Tord Ivarsson
- Regional Centre for Child and Youth Mental Health and Child Welfare, Department of Mental Health, Norwegian University of Science and Technology, Klostergata 46, 7030 Trondheim, Norway
- Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Norbert Skokauskas
- Regional Centre for Child and Youth Mental Health and Child Welfare, Department of Mental Health, Norwegian University of Science and Technology, Klostergata 46, 7030 Trondheim, Norway
- Department of Child and Adolescent Psychiatry, St. Olav’s University Hospital, Trondheim, Norway
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Marazziti D. Response to the letter to the editor: "The price of love: how sleep, and dysregulated clocks may account for its obsessive-compulsive related behaviors" by Miguel Meira e Cruz. CNS Spectr 2023; 28:651-652. [PMID: 36852707 DOI: 10.1017/s1092852923000068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Affiliation(s)
- Donatella Marazziti
- Department of Clinical and Experimental Medicine, Section of Psychiatry, University of Pisa, Pisa, Italy
- Unicamillus-Saint Camillus International University of Health Sciences, Rome, Italy
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Muela I, Navas JF, Barrada JR, López-Guerrero J, Rivero FJ, Brevers D, Perales JC. Operationalization and measurement of compulsivity across video gaming and gambling behavioral domains. BMC Psychol 2023; 11:407. [PMID: 37990335 PMCID: PMC10664636 DOI: 10.1186/s40359-023-01439-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 11/10/2023] [Indexed: 11/23/2023] Open
Abstract
BACKGROUND Compulsivity is the hallmark of addiction progression and, as a construct, has played an important role in unveiling the etiological pathways from learning mechanisms underlying addictive behavior to harms resulting from it. However, a sound use of the compulsivity construct in the field of behavioral addictions has been hindered to date by the lack of consensus regarding its definition and measurement. Here we capitalize on a previous systematic review and expert appraisal to develop a compulsivity scale for candidate behavioral addictions (the Granada Assessment for Cross-domain Compulsivity, GRACC). METHODS The initial scale (GRACC90) consisted of 90 items comprising previously proposed operationalizations of compulsivity, and was validated in two panel samples of individuals regularly engaging in gambling and video gaming, using exploratory structural equation modeling (ESEM) and convergence analyses. RESULTS The GRACC90 scale is unidimensional and structurally invariant across samples, and predicted severity of symptoms, lower quality of life, and negative affect, to similar degrees in the two samples. Additionally, poorer quality of life and negative affect were comparably predicted by compulsivity and by severity of symptoms. A shorter version of the scale (GRACC18) is proposed, based on selecting the 18 items with highest factor loadings. CONCLUSIONS Results support the proposal that core symptoms of behavioral addictions strongly overlap with compulsivity, and peripheral symptoms are not essential for their conceptualization. Further research should clarify the etiology of compulsive behavior, and whether pathways to compulsivity in behavioral addictions could be common or different across domains.
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Affiliation(s)
- Ismael Muela
- Department of Experimental Psychology; Mind, Brain and Behavior Research Center (CIMCYC), University of Granada, 18071, Campus de Cartuja s/n, Granada, Spain.
| | - Juan F Navas
- Department of Clinical Psychology, Complutense University of Madrid, Madrid, Spain
| | - Juan R Barrada
- Department of Psychology and Sociology, Faculty of Education, Universidad de Zaragoza, Zaragoza, Spain
| | - José López-Guerrero
- Department of Experimental Psychology; Mind, Brain and Behavior Research Center (CIMCYC), University of Granada, 18071, Campus de Cartuja s/n, Granada, Spain
| | - Francisco J Rivero
- Department of Experimental Psychology; Mind, Brain and Behavior Research Center (CIMCYC), University of Granada, 18071, Campus de Cartuja s/n, Granada, Spain
| | - Damien Brevers
- Louvain Experimental Psychopathology Research Group (LEP), Psychological Sciences Research Institute (IPSY), UCLouvain, Louvain-La-Neuve, Belgium
| | - José C Perales
- Department of Experimental Psychology; Mind, Brain and Behavior Research Center (CIMCYC), University of Granada, 18071, Campus de Cartuja s/n, Granada, Spain
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Bas J, Mascaro O. Infants are sensitive to the social signaling value of shared inefficient behaviors. Sci Rep 2023; 13:20034. [PMID: 37973834 PMCID: PMC10654565 DOI: 10.1038/s41598-023-46031-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 10/26/2023] [Indexed: 11/19/2023] Open
Abstract
Actions that are blatantly inefficient to achieve non-social goals are often used to convey information about agents' social affiliation, as in the case of rituals. We argue that when reproduced, actions that are individually inefficient acquire a social signaling value owing to the mechanisms that support humans' intuitive analysis of actions. We tested our hypothesis on 15-month-old infants who were familiarized with an agent that reproduced or merely observed the actions of efficient and inefficient individuals. Subsequently, we measured the infants' expectations of the agent's preferences for efficient and inefficient individuals. Our results confirmed that when agents act alone, infants expect a third-party to prefer efficient over inefficient agents. However, this pattern is entirely flipped if the third-party reproduces the agents' actions. In that case, infants expect inefficient agents to be preferred over efficient ones. Thus, reproducing actions whose rational basis is elusive can serve a critical social signaling function, accounting for why such behaviors are pervasive in human groups.
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Affiliation(s)
- Jesús Bas
- Center for Brain and Cognition, Universitat Pompeu Fabra, 08005, Barcelona, Spain.
| | - Olivier Mascaro
- Université Paris Cité, CNRS, Integrative Neuroscience and Cognition Center, 75006, Paris, France
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Gattuso JJ, Wilson C, Hannan AJ, Renoir T. Acute administration of the NMDA receptor antagonists ketamine and MK-801 reveals dysregulation of glutamatergic signalling and sensorimotor gating in the Sapap3 knockout mouse model of compulsive-like behaviour. Neuropharmacology 2023; 239:109689. [PMID: 37597609 DOI: 10.1016/j.neuropharm.2023.109689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/30/2023] [Accepted: 08/15/2023] [Indexed: 08/21/2023]
Abstract
Obsessive-compulsive disorder (OCD) is characterised by excessive intrusive thoughts that may cause an individual to engage in compulsive behaviours. Frontline pharmacological treatments (i.e., selective serotonin reuptake inhibitors (SSRIs)) leave approximately 40% of patients refractory to treatment. To investigate the possibility of novel pharmacological therapies for OCD, as well as the potential mechanisms underlying its pathology, we used the Sapap3 knockout (KO) mouse model of OCD, which exhibits increased anxiety and compulsive grooming behaviours. Firstly, we investigated whether administration of the NMDA receptor (NMDAR) antagonist ketamine (30 mg/kg), would reduce anxiety and grooming behaviour in Sapap3 KO mice. Anxiety-like behaviour was measured via time spent in the light component of the light-dark box test. Grooming behaviour was recorded and scored in freely moving mice. In line with previous works conducted in older animals (i.e. typically between 6 and 9 months of age), we confirmed here that Sapap3 KO mice exhibit an anxious, compulsive grooming, hypolocomotive and reduced body weight phenotype even at a younger age (i.e., 2-3 months of age). However, we found that acute administration of ketamine did not cause a reduction in anxiety or grooming behaviour. We then investigated in vivo glutamatergic function via the administration of a different NMDAR antagonist, MK-801 (0.25 mg/kg), prior to locomotion and prepulse inhibition assays. We found evidence of altered functional NMDAR activity, as well as sexually dimorphic prepulse inhibition, a measure of sensorimotor gating, in Sapap3 KO mice. These results are suggestive of in vivo glutamatergic dysfunction and their functional consequences, enabling future research to further investigate novel treatments for OCD.
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Affiliation(s)
- James J Gattuso
- Florey Institute of Neuroscience and Mental Health, Melbourne Brain Centre, University of Melbourne, Parkville, Australia
| | - Carey Wilson
- Florey Institute of Neuroscience and Mental Health, Melbourne Brain Centre, University of Melbourne, Parkville, Australia
| | - Anthony J Hannan
- Florey Institute of Neuroscience and Mental Health, Melbourne Brain Centre, University of Melbourne, Parkville, Australia; Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, Australia
| | - Thibault Renoir
- Florey Institute of Neuroscience and Mental Health, Melbourne Brain Centre, University of Melbourne, Parkville, Australia; Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, Australia.
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Brandt V, Otte JH, Fremer C, Jakubovski E, Müller-Vahl K. Non-just-right experiences are more closely related to OCD than tics in Tourette patients. Sci Rep 2023; 13:19627. [PMID: 37949933 PMCID: PMC10638287 DOI: 10.1038/s41598-023-37658-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 06/25/2023] [Indexed: 11/12/2023] Open
Abstract
Complex tics and obsessive or compulsive behaviour can be difficult to differentiate diagnostically. The majority of adult patients with Tourette syndrome report experiencing premonitory urges before tics. Some of these experiences have been linked to non-just-right experiences (NJRE), which are frequently reported by patients with obsessive-compulsive disorder or behaviours (OCD/OCB). We aimed to assess whether NJRE are more closely related to tics and tic-associated premonitory urges or whether they are more closely associated with OCD. A total of N = 111 patients (mean age = 34.77 + /-12.93; N = 37 female) with a confirmed diagnosis of Tourette syndrome completed the premonitory urges for tic disorders scale (PUTS), the revised non-just-right experiences scale (NJRE-QR), and questionnaires regarding their tic severity, and comorbid OCD/OCB. A multi-trait-multi-methods matrix was calculated to examine associations amongst scales measuring tic-related and OCB-related phenomena. The PUTS correlated overall higher with tic questionnaires than with OCD/OCB questionnaires. The NJRE correlated higher with OCD symptoms than with tic severity. The results indicate that non-just-right experiences are more closely associated with comorbid OCB than with tics in patients with Tourette syndrome.
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Affiliation(s)
- Valerie Brandt
- Clinic of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hanover, Germany.
- School of Psychology, Centre for Innovation in Mental Health, University of Southampton, Southampton, UK.
| | - Jan-Hendrik Otte
- Clinic of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hanover, Germany
| | - Carolin Fremer
- Clinic of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hanover, Germany
| | - Ewgeni Jakubovski
- Clinic of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hanover, Germany
| | - Kirsten Müller-Vahl
- Clinic of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hanover, Germany.
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Bramante S, Rigardetto S, Borgogno R, Mehanović E, Pellegrini L, Albert U, Maina G. Episodic obsessive-compulsive disorder and bipolar spectrum disorder: new evidence from a large Italian OCD sample. Int J Psychiatry Clin Pract 2023; 27:330-337. [PMID: 37401917 DOI: 10.1080/13651501.2023.2231040] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 06/21/2023] [Indexed: 07/05/2023]
Abstract
OBJECTIVES Obsessive-Compulsive Disorder (OCD) has been considered to be a chronic illness; however, some authors described a subtype of OCD characterised by symptom-free periods of time: Episodic-OCD (E-OCD). Only few studies focussed on this subtype of the disorder. The objectives of this research were to study the association between the episodic course of the disorder and lifetime psychiatric comorbidities and to investigate socio-demographic and other clinical features correlated to the episodic course. METHODS The sample is composed of adult OCD patients. The course was defined episodic when at least one circumscribed symptom-free interval of at least 6 months was present. The sample was divided into two subgroups: Episodic-OCD and Chronic-OCD. Differences between groups were analysed with Student's t-test, χ2 tests, Fisher test and multivariate logistic regression. RESULTS Data regarding 585 individuals were collected. 14.2% (N = 83) of our sample had an episodic course. Bipolar I comorbid disorder, abrupt onset, lower severity of illness and lower rates of repeating compulsions were associated with the likelihood of having an E-OCD. CONCLUSIONS Our findings confirm that a significant proportion of OCD patients have an episodic course and that E-OCD could represent a specific endophenotype.
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Affiliation(s)
- Stefano Bramante
- Rita Levi Montalcini Department of Neurosciences, University of Turin, Turin, Italy
- Psychiatry Department, San Luigi Gonzaga University Hospital, Orbassano, Italy
| | - Sylvia Rigardetto
- Psychiatry Department, San Luigi Gonzaga University Hospital, Orbassano, Italy
| | - Roberta Borgogno
- Rita Levi Montalcini Department of Neurosciences, University of Turin, Turin, Italy
- Psychiatry Department, San Luigi Gonzaga University Hospital, Orbassano, Italy
| | - Emina Mehanović
- Rita Levi Montalcini Department of Neurosciences, University of Turin, Turin, Italy
| | - Luca Pellegrini
- School of Life and Medical Sciences, University of Hertfordshire, Hatfield, UK
- Hertfordshire Partnership University NHS Foundation Trust, Welwyn Garden City, UK
- Centre for Psychedelic Research, Imperial College London, London, UK
| | - Umberto Albert
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy
- Azienda Sanitaria Universitaria Giuliano-Isontina - ASUGI, UCO Clinica Psichiatrica, Trieste, Italy
| | - Giuseppe Maina
- Rita Levi Montalcini Department of Neurosciences, University of Turin, Turin, Italy
- Psychiatry Department, San Luigi Gonzaga University Hospital, Orbassano, Italy
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