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Au-Yeung C, Penney D, Rae J, Carling H, Lassman L, Lepage M. The relationship between negative symptoms and MATRICS neurocognitive domains: A meta-analysis and systematic review. Prog Neuropsychopharmacol Biol Psychiatry 2023; 127:110833. [PMID: 37482283 DOI: 10.1016/j.pnpbp.2023.110833] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/11/2023] [Accepted: 07/16/2023] [Indexed: 07/25/2023]
Abstract
BACKGROUND Negative symptoms (NS) are a core symptom domain in schizophrenia spectrum disorders and are associated with poorer social and vocational functioning, and with increased likelihood and durations of hospital admission. NS are not well understood, limiting available interventions. However, numerous studies have reported associations between neurocognitive domains and NS severity. Thus, one promising area in understanding NS is in relation to neurocognition. Currently, the specificity of the relationship between NS and neurocognition is unknown, meaning that there is no consensus regarding which neurocognitive domain is most strongly associated with NS. There is a need to systematically examine the relationship between NS and various neurocognitive domains within study samples. METHODS A systematic search of Ovid PsycINFO, Ovid MEDLINE and Web of Science was performed for articles published since 2004 (year of MATRICS Consensus publication). Inclusion criteria were: 1) individuals with schizophrenia spectrum disorders, first episode psychosis or clinical high risk 2) assessed all six MATRICS neurocognitive domains (processing speed, attention, working memory, verbal learning & memory, visual learning & memory, reasoning & problem solving), 3) reported correlations between all six MATRICS neurocognitive domains and global NS. A three-level random effects hierarchical meta-analysis was performed to assess the relationship between NS (global, expressive, and experiential dimensions) and the six MATRICS neurocognitive domains. RESULTS 21 studies were included in the review (n = 3619). All MATRICS neurocognitive domains had small significant correlations with global NS (r = -0.16 to -0.20, p < 0.0001). This relationship was significantly moderated by diagnosis and the moderating effect of sex/ gender trended on significance. Analysis of a subset of the studies revealed that MATRICS neurocognitive domains also had small significant correlations with the two NS dimensions, expressive and experiential. Correlations were stronger with the expressive NS dimension. CONCLUSIONS This review is novel in assessing the relationship between multiple neurocognitive domains and NS within the same sample, by synthesizing close to two decades of research. Our results suggest that there is a non-specific relationship between neurocognition and NS, and that expressive NS may have a stronger relationship with neurocognitive functioning-based on the MATRICS classification of neurocognition and the neurocognitive assessments used in the included studies. This has implications on our understanding of NS and neurocognition, as well as their treatments. As we gain better understanding of the directionality of the NS-cognition relationship, it could suggest that NS, particularly in the expressive domain, could be improved by targeting cognition globally or that neurocognitive treatments could be more effective if NS are addressed first. Further implications of these results are discussed.
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Affiliation(s)
- Christy Au-Yeung
- Department of Psychology, McGill University, Montreal, Quebec, Canada; Douglas Research Centre, Montréal, Québec, Canada
| | - Danielle Penney
- Douglas Research Centre, Montréal, Québec, Canada; Department of Psychology, Université du Québec à Montréal, Montréal, Québec, Canada
| | - Jesse Rae
- Douglas Research Centre, Montréal, Québec, Canada
| | - Hannah Carling
- Department of Psychology, McGill University, Montreal, Quebec, Canada; Douglas Research Centre, Montréal, Québec, Canada
| | - Libby Lassman
- Douglas Research Centre, Montréal, Québec, Canada; Department of Psychiatry, McGill University, Montreal, Quebec, Canada
| | - Martin Lepage
- Douglas Research Centre, Montréal, Québec, Canada; Department of Psychiatry, McGill University, Montreal, Quebec, Canada.
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McGuire N, Gumley A, Hasson-Ohayon I, Allan S, Aunjitsakul W, Aydin O, Bo S, Bonfils KA, Bröcker AL, de Jong S, Dimaggio G, Inchausti F, Jansen JE, Lecomte T, Luther L, MacBeth A, Montag C, Pedersen MB, Pijnenborg GHM, Popolo R, Schwannauer M, Trauelsen AM, van Donkersgoed R, Wu W, Wang K, Lysaker PH, McLeod H. Investigating the relationship between negative symptoms and metacognitive functioning in psychosis: An individual participant data meta-analysis. Psychol Psychother 2023; 96:918-933. [PMID: 37530433 DOI: 10.1111/papt.12484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/24/2023] [Accepted: 07/10/2023] [Indexed: 08/03/2023]
Abstract
PURPOSE Negative symptoms are a persistent, yet under-explored problem in psychosis. Disturbances in metacognition are a potential causal factor in negative symptom development and maintenance. This meta-analysis uses individual participant data (IPD) from existing research to assess the relationship between negative symptoms and metacognition treated as summed scores and domains. METHODS Data sets containing individuals with negative symptoms and metacognition data, aged 16+ with psychosis, were identified according to pre-specific parameters. IPD integrity and completeness were checked and data were synthesized in two-stage meta-analyses of each negative symptoms cluster compared with metacognition in seemingly unrelated regression using restricted maximum likelihood estimation. Planned and exploratory sensitivity analyses were also conducted. RESULTS Thirty-three eligible data sets were identified with 21 with sufficient similarity and availability to be included in meta-analyses, corresponding to 1301 participants. The strongest relationships observed were between summed scores of negative symptoms and metacognition. Metacognitive domains of self-reflectivity and understanding others' minds, and expressive negative symptoms emerged as significant in some meta-analyses. The uncertainty of several effect estimates increased significantly when controlling for covariates. CONCLUSIONS This robust meta-analysis highlights the impact of using summed versus domain-specific scores of metacognition and negative symptoms, and relationships are not as clear-cut as once believed. Findings support arguments for further differentiation of negative symptom profiles and continued granular exploration of the relationship between metacognition and negative symptoms.
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Affiliation(s)
| | | | | | | | | | - Orkun Aydin
- International University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Sune Bo
- Psychiatric Research Unit, Region Zealand, Slagelse, Denmark
| | - Kelsey A Bonfils
- School of Psychology, University of Southern Mississippi, Hattiesburg, Mississippi, USA
| | | | - Steven de Jong
- Lentis Psychiatric Institute, Groningen, The Netherlands
| | | | - Felix Inchausti
- Department of Mental Health, Servicio Riojano de Salud, Logroño, Spain
| | | | | | | | | | | | - Marlene Buch Pedersen
- Early Psychosis Intervention Centre, Psychiatry East, Region Zealand, Roskilde, Denmark
| | | | | | | | - Anne-Marie Trauelsen
- Assessment and Brief Treatment Team (Newham), East London Foundation Trust, London, UK
| | | | | | - Kai Wang
- Anhui Medical University, Hefei, China
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Howie JH, Faith LA, Jarvis SP, Rempfer MV. Social Cognition and Other Determinants of Perceived Social Support in Individuals With Serious Mental Illness. J Nerv Ment Dis 2023; 211:848-855. [PMID: 37647619 DOI: 10.1097/nmd.0000000000001708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
ABSTRACT Social support provides protective effects for those with serious mental illness (SMI), but these effects may be attenuated by factors that hinder positive perceptions of support. Improved understanding of social support and its determinants may hold relevance for clinical interventions and provide avenues to promote recovery and improve functioning. The present study is a cross-sectional, correlational analysis investigating the relationships among social cognition (Mayer-Salovey-Caruso Emotional Intelligence Test-Managing Emotions subscale), social anxiety (Liebowitz Social Anxiety Scale), negative symptoms (Scale for the Assessment of Negative Symptoms), and perceived social support (Interpersonal Support Evaluation List) among individuals with SMI. Data were analyzed for 59 participants from a psychosocial rehabilitation treatment study at a public, urban academic-affiliated medical center in the Midwest. Bivariate Pearson correlations revealed statistically significant associations among perceived social support and social cognition (total perceived social support, p < 0.05; appraisal support, p < 0.01), negative symptoms (appraisal support, p < 0.05), and social anxiety (self-esteem support, p < 0.05). Further, multiple linear regression revealed social cognition remained a significant predictor of perceived social support ( p < 0.05) when controlling for social anxiety and negative symptoms. Overall findings suggest a correlative relationship between social cognition and perceived social support. Conclusions, limitations, and future directions are discussed.
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Affiliation(s)
- J Hunter Howie
- Department of Psychology, The University of Missouri, Kansas City, Missouri
| | | | | | - Melisa V Rempfer
- Department of Psychology, The University of Missouri, Kansas City, Missouri
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McGuire N, Gumley A, Hasson-Ohayon I, Allan S, Aunjitsakul W, Aydin O, Bo S, Bonfils KA, Bröcker AL, de Jong S, Dimaggio G, Inchausti F, Jansen JE, Lecomte T, Luther L, MacBeth A, Montag C, Pedersen MB, Pijnenborg GHM, Popolo R, Schwannauer M, Trauelsen AM, van Donkersgoed R, Wu W, Wang K, Lysaker PH, McLeod H. Investigating the relationship between specific negative symptoms and metacognitive functioning in psychosis: A systematic review. Psychol Psychother 2023. [PMID: 37864383 DOI: 10.1111/papt.12505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 07/20/2023] [Accepted: 09/25/2023] [Indexed: 10/22/2023]
Abstract
BACKGROUND Disrupted metacognition is implicated in development and maintenance of negative symptoms, but more fine-grained analyses would inform precise treatment targeting for individual negative symptoms. AIMS This systematic review identifies and examines datasets that test whether specific metacognitive capacities distinctly influence negative symptoms. MATERIALS & METHODS PsycINFO, EMBASE, Medline and Cochrane Library databases plus hand searching of relevant articles, journals and grey literature identified quantitative research investigating negative symptoms and metacognition in adults aged 16+ with psychosis. Authors of included articles were contacted to identify unique datasets and missing information. Data were extracted for a risk of bias assessment using the Quality in Prognostic Studies tool. RESULTS 85 published reports met criteria and are estimated to reflect 32 distinct datasets and 1623 unique participants. The data indicated uncertainty about the relationship between summed scores of negative symptoms and domains of metacognition, with significant findings indicating correlation coefficients from 0.88 to -0.23. Only eight studies investigated the relationship between metacognition and individual negative symptoms, with mixed findings. Studies were mostly moderate-to-low risk of bias. DISCUSSION The relationship between negative symptoms and metacognition is rarely the focus of studies reviewed here, and negative symptom scores are often summed. This approach may obscure relationships between metacognitive domains and individual negative symptoms which may be important for understanding how negative symptoms are developed and maintained. CONLCLUSION Methodological challenges around overlapping participants, variation in aggregation of negative symptom items and types of analyses used, make a strong case for use of Individual Participant Data Meta-Analysis to further elucidate these relationships.
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Affiliation(s)
| | | | | | | | | | - Orkun Aydin
- International University of Sarajevo, Sarajevo, Bosnia and Herzegovinia
| | - Sune Bo
- Psychiatric Research Unit, Region Zealand, Slagelse, Denmark
| | - Kelsey A Bonfils
- School of Psychology, University of Southern Mississippi, Hattiesburg, Mississippi, USA
| | | | - Steven de Jong
- Lentis Psychiatric Institute, Groningen, The Netherlands
| | | | - Felix Inchausti
- Department of Mental Health, Servicio Riojano de Salud, Logroño, Spain
| | - Jens Einar Jansen
- Mental Health Center Copenhagen, Capital Region, Copenhagen, Denmark
| | | | | | | | | | - Marlene Buch Pedersen
- Early Psychosis Intervention Centre, Psychiatry East, Region Zealand, Roskilde, Denmark
| | | | | | | | | | | | - Weiming Wu
- Anhui Medical University, Hefei City, China
| | - Kai Wang
- Anhui Medical University, Hefei City, China
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Dubreucq J, Martin A, Gabayet F, Plasse J, Wiesepape C, Quilès C, Verdoux H, Franck N, Lysaker PH. Contrasting the Social Cognitive and Metacognitive Capacities Among Patients With Schizophrenia and Autism Spectrum Disorders Enrolled in Psychiatric Rehabilitation. J Nerv Ment Dis 2022; 210:747-753. [PMID: 35687729 DOI: 10.1097/nmd.0000000000001530] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
ABSTRACT Unique deficits in synthetic metacognition have been found in schizophrenia when compared with other psychiatric conditions and community controls. Although persons with autism spectrum disorders (ASD) display similar deficits in social cognition relative to those with schizophrenia, to date no study has compared metacognitive function between these groups. We aimed to compare the metacognitive capacities of persons with schizophrenia and ASD and their associations with other outcomes (neurocognition, social cognition, depression, and quality of life). Fifty-six outpatients with schizophrenia or ASD (mean age, 32.50 [9.05]; 67.9% male) were recruited from two French Centers of Reference for Psychiatric Rehabilitation of the REHABase cohort. Evaluation included the Indiana Psychiatric Illness Interview, Metacognition Assessment Scale-Abbreviated, Movie for the Assessment of Social Cognition, and a large cognitive battery. Compared with those with schizophrenia, participants with ASD had higher self-reflectivity ( p = 0.025; odds ratio, 1.38 [1.05-1.86]) in univariable analyses. Metacognitive deficits may be found in ASD with a profile that varies from what is found in schizophrenia. It is possible that methods for enhancing metacognitive abilities during psychiatric rehabilitation may be refined to assist adults with ASD to better manage their own recovery.
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Affiliation(s)
| | - Aude Martin
- Centre Référent de Réhabilitation Psychosociale et de Remédiation Cognitive (C3R), Centre Hospitalier Alpes Isère, Grenoble
| | | | | | - Courtney Wiesepape
- Department of Psychology, Indiana State University, Terra Haute, Indiana
| | - Clélia Quilès
- Centre Référent de Réhabilitation Psychosociale (C2RP) Nouvelle Aquitaine Sud, Pôle Universitaire de Psychiatrie Adulte, Centre Hospitalier Charles Perrens, Bordeaux & Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, Team Pharmacoepidemiology, UMR 1219, Bordeaux, France
| | - Hélène Verdoux
- Centre Référent de Réhabilitation Psychosociale (C2RP) Nouvelle Aquitaine Sud, Pôle Universitaire de Psychiatrie Adulte, Centre Hospitalier Charles Perrens, Bordeaux & Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, Team Pharmacoepidemiology, UMR 1219, Bordeaux, France
| | | | - Paul H Lysaker
- Roudebush VA Medical Center and Indiana University School of Medicine, Indianapolis, Indiana
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Faith LA, Lecomte T, Corbière M, Lysaker PH. Metacognitive mastery moderates the relationship between positive symptoms and distress in adults with serious mental illness. J Ment Health 2022:1-8. [PMID: 35766302 DOI: 10.1080/09638237.2022.2091758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
BACKGROUND Research supports the possibility that a person's metacognitive ability may influence the impact of positive symptoms. This connection is important because understanding how metacognitive capacity relates to positive symptoms and distress can guide treatment and bolster recovery. AIMS To explore this, we assessed the moderating role of Metacognitive Mastery on the relationship of positive symptoms to affective symptoms, or markers of distress, measured both concurrently and at a later time point (to assess durability of metacognition) with persons with serious mental illness. To rule out the possibility that any findings were the result of cognitive impairments or general psychopathology we included measures of neurocognition and symptoms as potential covariates. METHODS Participants were 67 individuals with the majority diagnosed with either schizophrenia spectrum disorder, major depressive disorder, or bipolar disorder. Metacognition was measured with the Metacognitive Assessment Scale-Abbreviated, symptoms were measured using the Brief Psychiatric Rating Scale and verbal memory was measured using the California Verbal Learning Test. RESULTS Metacognitive Mastery moderated the relationship between positive symptoms and affective symptoms at both time points with differential patterns at each point. CONCLUSIONS Metacognitive Mastery may exert a complex influence upon the effects of positive symptoms on distress.
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Affiliation(s)
- Laura A Faith
- Richard L Roudebush VA Medical Center, Indianapolis, IN, USA.,Department of Psychology, University of Missouri, Kansas City, MO, USA
| | - Tania Lecomte
- Department of Psychology, University of Montreal, Montreal, QC, USA
| | - Marc Corbière
- Department of Psychology, University of Montreal, Montreal, QC, USA
| | - Paul H Lysaker
- Richard L Roudebush VA Medical Center, Indianapolis, IN, USA.,Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
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Swanson L, Schwannauer M, Bird T, Eliasson E, Millar A, Moritz S, Griffiths H. Metacognitive Training Modified for Negative Symptoms (MCT-N): A Feasibility study. Clin Psychol Psychother 2021; 29:1068-1079. [PMID: 34792834 DOI: 10.1002/cpp.2692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Although patients often prioritise the treatment of negative symptoms, few psychological interventions targeting negative symptoms exist. This study attempts to fill this gap by piloting a modified Metacognitive training programme, specifically targeted at negative symptoms (MCT-N), with a group of patients with prominent negative symptoms. METHOD We adopted a mixed methods case series design, providing detailed quantitative data on changes over time, to focus on potential mechanisms underlying the intervention, in combination with qualitative interviews. RESULTS The intervention showed good feasibility as demonstrated by the attendance rate, the positive feedback from participants and the multidisciplinary team, and the improvements on negative symptoms observed following the intervention. Multilevel modelling showed that depression, internalised stigma, and reflective functioning explained the variance in negative symptoms. DISCUSSION The pilot study indicated that the intervention has high feasibility and that improvements in negative symptoms can be partially explained by improvements on depression, stigma, and reflective functioning.
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Affiliation(s)
- Linda Swanson
- University of Edinburgh, UK, Section of Clinical and Health Psychology, School of Health in Social Science, Edinburgh.,NHS Lothian, UK, Psychology Department, Royal Edinburgh Hospital, Edinburgh.,Region Sörmland, Sweden, Centre for Clinical Research Sörmland, Eskilstuna
| | - Matthias Schwannauer
- University of Edinburgh, UK, Section of Clinical and Health Psychology, School of Health in Social Science, Edinburgh
| | - Tim Bird
- University of Edinburgh, UK, Section of Clinical and Health Psychology, School of Health in Social Science, Edinburgh
| | - Emma Eliasson
- University of Edinburgh, UK, Section of Clinical and Health Psychology, School of Health in Social Science, Edinburgh
| | - Audrey Millar
- NHS Lothian, UK, Psychology Department, Royal Edinburgh Hospital, Edinburgh
| | - Steffen Moritz
- University Medical Center Hamburg-Eppendorf, Germany, Department of Psychiatry and Psychotherapy, Hamburg
| | - Helen Griffiths
- University of Edinburgh, UK, Section of Clinical and Health Psychology, School of Health in Social Science, Edinburgh
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Deficits in access consciousness, integrative function, and consequent autonoetic thinking in schizophrenia. Med Hypotheses 2021; 155:110664. [PMID: 34425452 DOI: 10.1016/j.mehy.2021.110664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 06/09/2021] [Accepted: 08/10/2021] [Indexed: 11/23/2022]
Abstract
Alterations within consciousness in schizophrenia can be evidenced by impediments in self-awareness and loss of agency. Ned Block's definition of access consciousness is applied in order to further delineate cognitive deficits involving reflective thought and autonoetic thinking in persons with schizophrenia. Current theories on the nature and functioning of consciousness are discussed, which include Global Workspace Theory and metarepresentational characterizations. These describe a recursive, integrative quality to consciousness, contributed to by the functions of access consciousness, that is relevant in examining cognitive deficits in schizophrenia. The integrative deficit that is described as operating in conscious process involves a failure to incorporate prior outputs from a separate cognitive task and integrate these into a novel working schema. The alterations in access consciousness in persons with schizophrenia appear to be a consequence of disrupted integrative cognitive functions. An anteceding problem with cortical circuits involving integrative functions related to access consciousness is therefore hypothesized to manifest as subsequent cognitive dysfunction that leads to symptoms of schizophrenia. Constitutive failures to integrate information in schizophrenia could lead to an inability to create experiential unity and manage content in autonoetic consciousness. Some of the aberrant reasoning manifested by persons with schizophrenia, including problems with hierarchical relational reasoning, model-based-learning, J-con, ipseity, and source monitoring, could also reflect alterations in access consciousness, and their investigation offers additional approaches for scientific inquiry.
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Lysaker PH, Cheli S, Dimaggio G, Buck B, Bonfils KA, Huling K, Wiesepape C, Lysaker JT. Metacognition, social cognition, and mentalizing in psychosis: are these distinct constructs when it comes to subjective experience or are we just splitting hairs? BMC Psychiatry 2021; 21:329. [PMID: 34215225 PMCID: PMC8254212 DOI: 10.1186/s12888-021-03338-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 06/21/2021] [Indexed: 02/01/2023] Open
Abstract
Research using the integrated model of metacognition has suggested that the construct of metacognition could quantify the spectrum of activities that, if impaired, might cause many of the subjective disturbances found in psychosis. Research on social cognition and mentalizing in psychosis, however, has also pointed to underlying deficits in how persons make sense of their experience of themselves and others. To explore the question of whether metacognitive research in psychosis offers unique insight in the midst of these other two emerging fields, we have offered a review of the constructs and research from each field. Following that summary, we discuss ways in which research on metacognition may be distinguished from research on social cognition and mentalizing in three broad categories: (1) experimental procedures, (2) theoretical advances, and (3) clinical applications or indicated interventions. In terms of its research methods, we will describe how metacognition makes a unique contribution to understanding disturbances in how persons make sense of and interpret their own experiences within the flow of life. We will next discuss how metacognitive research in psychosis uniquely describes an architecture which when compromised - as often occurs in psychosis - results in the loss of persons' sense of purpose, possibilities, place in the world and cohesiveness of self. Turning to clinical issues, we explore how metacognitive research offers an operational model of the architecture which if repaired or restored should promote the recovery of a coherent sense of self and others in psychosis. Finally, we discuss the concrete implications of this for recovery-oriented treatment for psychosis as well as the need for further research on the commonalities of these approaches.
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Affiliation(s)
- P H Lysaker
- Richard L Roudebush VA Medical Center, Department of Psychiatry, 1481 W. 10th St., Indianapolis, IN, 46202, USA. .,Department of Psychiatry, Indiana University School of Medicine, 340 W. 10th St., Indianapolis, IN, 46202, USA.
| | - S Cheli
- University of Florence, School of Human Health Sciences, Piazza di San Marco, 4, 50121, Florence, FI, Italy
| | - G Dimaggio
- Terzocentro di Psicoterapia Cognitiva, Associazione di Psicologia Cognitiva, Via Ravenna, 9, 00161, Rome, RM, Italy
| | - B Buck
- Department of Psychiatry and Behavioral Sciences, University of Washington, Behavioral Research in Technology and Engineering (BRiTE) Center, 1851 NE Grant Ln., Seattle, WA, 98185, USA
| | - K A Bonfils
- University of Southern Mississippi, School of Psychology, 118 College Dr., Hattiesbury, MS, 39406, USA
| | - K Huling
- University of Indianapolis, School of Psychological Sciences, 1400 E. Hanna Ave., Indianapolis, IN, 46277, USA
| | - C Wiesepape
- Indiana State University, Department of Psychology, 200 N. 7th St., Terre Haute, IN, 47809, USA
| | - J T Lysaker
- Department of Philosophy, Emory University, 201 Dowman Dr., Atlanta, GA, 30322, USA
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