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Antunes GF, Gouveia FV, Kuroki MA, Oliveira Martins D, Pagano RDL, Pinheiro Campos AC, Martinez RCR. Neuroinflammation in the prefrontal-amygdala-hippocampus network is associated with maladaptive avoidance behaviour. Heliyon 2024; 10:e30427. [PMID: 38694029 PMCID: PMC11061725 DOI: 10.1016/j.heliyon.2024.e30427] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/03/2024] Open
Abstract
Maladaptive avoidance behaviour is often observed in patients suffering from anxiety and trauma- and stressor-related disorders. The prefrontal-amygdala-hippocampus network is implicated in learning and memory consolidation. Neuroinflammation in this circuitry alters network dynamics, resulting in maladaptive avoidance behaviour. The two-way active avoidance test is a well-established translational model for assessing avoidance responses to stressful situations. While some animals learn the task and show adaptive avoidance (AA), others show strong fear responses to the test environment and maladaptive avoidance (MA). Here, we investigated if a distinct neuroinflammation pattern in the prefrontal-amygdala-hippocampus network underlies the behavioural difference observed in these animals. Wistar rats were tested 8 times and categorized as AA or MA based on behaviour. Brain recovery followed for the analysis of neuroinflammatory markers in this network. AA and MA presented distinct patterns of neuroinflammation, with MA showing increased astrocyte, EAAT-2, IL-1β, IL-17 and TNF-ɑ in the amygdala. This neuroinflammatory pattern may underlie these animals' fear response and maladaptive avoidance. Further studies are warranted to determine the specific contributions of each inflammatory factor, as well as the possibility of treating maladaptive avoidance behaviour in patients with psychiatric disorders with anti-inflammatory drugs targeting the amygdala.
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Affiliation(s)
| | - Flavia Venetucci Gouveia
- Division of Neuroscience, Hospital Sirio-Libanes, Sao Paulo, Brazil
- Neuroscience and Mental Health, The Hospital for Sick Children, Toronto, ON, Canada
| | | | | | | | | | - Raquel Chacon Ruiz Martinez
- Division of Neuroscience, Hospital Sirio-Libanes, Sao Paulo, Brazil
- LIM/23, Institute of Psychiatry, University of Sao Paulo School of Medicine, Sao Paulo, Brazil
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Termine A, Fabrizio C, Gimenez J, Panuccio A, Balsamo F, Passarello N, Caioli S, Saba L, De Bardi M, Della Valle F, Orlando V, Petrosini L, Laricchiuta D. Transcriptomic and Network Analyses Reveal Immune Modulation by Endocannabinoids in Approach/Avoidance Traits. Int J Mol Sci 2022; 23:ijms23052538. [PMID: 35269678 PMCID: PMC8910341 DOI: 10.3390/ijms23052538] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 02/17/2022] [Accepted: 02/23/2022] [Indexed: 02/04/2023] Open
Abstract
Approach and avoidance (A/A) tendencies are stable behavioral traits in responding to rewarding and fearful stimuli. They represent the superordinate division of emotion, and individual differences in such traits are associated with disease susceptibility. The neural circuitry underlying A/A traits is retained to be the cortico-limbic pathway including the amygdala, the central hub for the emotional processing. Furthermore, A/A-specific individual differences are associated with the activity of the endocannabinoid system (ECS) and especially of CB1 receptors whose density and functionality in amygdala differ according to A/A traits. ECS markedly interacts with the immune system (IS). However, how the interplay between ECS and IS is associated with A/A individual differences is still ill-defined. To fill this gap, here we analyzed the interaction between the gene expression of ECS and immune system (IS) in relation to individual differences. To unveil the deep architecture of ECS-IS interaction, we performed cell-specific transcriptomics analysis. Differential gene expression profiling, functional enrichment, and protein–protein interaction network analyses were performed in amygdala pyramidal neurons of mice showing different A/A behavioral tendencies. Several altered pro-inflammatory pathways were identified as associated with individual differences in A/A traits, indicating the chronic activation of the adaptive immune response sustained by the interplay between endocannabinoids and the IS. Furthermore, results showed that the interaction between the two systems modulates synaptic plasticity and neuronal metabolism in individual difference-specific manner. Deepening our knowledge about ECS/IS interaction may provide useful targets for treatment and prevention of psychopathology associated with A/A traits.
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Affiliation(s)
- Andrea Termine
- Data Science Unit, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy; (A.T.); (C.F.)
| | - Carlo Fabrizio
- Data Science Unit, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy; (A.T.); (C.F.)
| | - Juliette Gimenez
- Epigenetics and Genome Reprogramming Laboratory, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy;
| | - Anna Panuccio
- Experimental and Behavioral Neurophysiology Lab, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy; (A.P.); (F.B.); (N.P.); (L.P.)
- Department of Psychology, University Sapienza of Rome, 00185 Rome, Italy
| | - Francesca Balsamo
- Experimental and Behavioral Neurophysiology Lab, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy; (A.P.); (F.B.); (N.P.); (L.P.)
- Department of Human Sciences, Guglielmo Marconi University, 00193 Rome, Italy
| | - Noemi Passarello
- Experimental and Behavioral Neurophysiology Lab, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy; (A.P.); (F.B.); (N.P.); (L.P.)
- Department of Humanities, Federico II University of Naples, 80131 Naples, Italy
| | - Silvia Caioli
- Unit of Neurology, IRCCS Neuromed, 86077 Pozzilli, Italy;
| | - Luana Saba
- Department of Sciences and Technologies for Humans and Environment, University of Campus Biomedico, 00128 Rome, Italy;
| | - Marco De Bardi
- Neuroimmunology Unit, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy;
| | - Francesco Della Valle
- KAUST Environmental Epigenetics Program, Biological Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), 4700 KAUST, Thuwal 23955, Saudi Arabia; (F.D.V.); (V.O.)
| | - Valerio Orlando
- KAUST Environmental Epigenetics Program, Biological Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), 4700 KAUST, Thuwal 23955, Saudi Arabia; (F.D.V.); (V.O.)
| | - Laura Petrosini
- Experimental and Behavioral Neurophysiology Lab, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy; (A.P.); (F.B.); (N.P.); (L.P.)
| | - Daniela Laricchiuta
- Experimental and Behavioral Neurophysiology Lab, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy; (A.P.); (F.B.); (N.P.); (L.P.)
- Correspondence:
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Ghosh D, Mukhopadhyay P, Chatterjee I, Roy PK. Arousability, Personality, and Decision-Making Ability in Dissociative Disorder. Indian J Psychol Med 2021; 43:485-491. [PMID: 35210676 PMCID: PMC8826191 DOI: 10.1177/0253717620981555] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND There is a gap in understanding the pathogenesis of dissociative conversion disorder (DCD), despite the disorder having a strong historical root. The role of personality and neurocognitive factors are now highlighted; however, inconsistencies are reported. This study explores the personality disposition, arousability, and decision-making ability of patients with DCD, in reference to a healthy control group (HCG). METHODS In this cross-sectional study, the sample comprised ten adult psychiatric patients with DCD. Ten participants of the HCG were matched according to age, gender, education, economic status, domicile, religious background, and handedness. The study assessed personality disposition with Temperament and Character Inventory, arousability with reaction time task, and decision-making ability with the Iowa Gambling Task (IGT PEBL version). RESULTS The DCD group differed significantly on personality disposition related to both temperament and character. There was also evidence of easy arousability and frustration along with deficit in executive function related to decision-making ability. CONCLUSION This study highlights the presence of both temperamental and characterological factors associated with DCD. Moreover, this study identifies the role of cognitive arousability and decision-making or feedback utilization ability in the psychopathology of DCD.
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Affiliation(s)
- Doyel Ghosh
- Dept. of Clinical Psychology, Institute of Psychiatry-COE, Kolkata, West Bengal, India
| | | | - Ishani Chatterjee
- Dept. of Psychology, University of Calcutta, Kolkata, West Bengal, India
| | - Prasanta Kumar Roy
- Dept. of Clinical Psychology, Institute of Psychiatry-COE, Kolkata, West Bengal, India
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Steinman MQ, Kirson D, Wolfe SA, Khom S, D'Ambrosio SR, Spierling Bagsic SR, Bajo M, Vlkolinský R, Hoang NK, Singhal A, Sureshchandra S, Oleata CS, Messaoudi I, Zorrilla EP, Roberto M. Importance of sex and trauma context on circulating cytokines and amygdalar GABAergic signaling in a comorbid model of posttraumatic stress and alcohol use disorders. Mol Psychiatry 2021; 26:3093-3107. [PMID: 33087855 PMCID: PMC8058115 DOI: 10.1038/s41380-020-00920-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [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] [Received: 12/28/2019] [Revised: 09/29/2020] [Accepted: 10/06/2020] [Indexed: 02/08/2023]
Abstract
Alcohol use disorder (AUD) and anxiety disorders are frequently comorbid and share mechanisms that could be therapeutic targets. To facilitate mechanistic studies, we adapted an inhibitory avoidance-based "2-hit" rat model of posttraumatic stress disorder (PTSD) and identified predictors and biomarkers of comorbid alcohol (ethanol)/PTSD-like symptoms in these animals. Stressed Wistar rats received a single footshock on two occasions. The first footshock occurred when rats crossed into the dark chamber of a shuttle box. Forty-eight hours later, rats received the second footshock in a familiar (FAM) or novel (NOV) context. Rats then received 4 weeks of two-bottle choice (2BC) ethanol access. During subsequent abstinence, PTSD-like behavior responses, GABAergic synaptic transmission in the central amygdala (CeA), and circulating cytokine levels were measured. FAM and NOV stress more effectively increased 2BC drinking in males and females, respectively. Stressed male rats, especially drinking-vulnerable individuals (≥0.8 g/kg average 2-h ethanol intake with >50% ethanol preference), showed higher fear overgeneralization in novel contexts, increased GABAergic transmission in the CeA, and a profile of increased G-CSF, GM-CSF, IL-13, IL-6, IL-17a, leptin, and IL-4 that discriminated between stress context (NOV > FAM > Control). However, drinking-resilient males showed the highest G-CSF, IL-13, and leptin levels. Stressed females showed increased acoustic startle and decreased sleep maintenance, indicative of hyperarousal, with increased CeA GABAergic transmission in NOV females. This paradigm promotes key features of PTSD, including hyperarousal, fear generalization, avoidance, and sleep disturbance, with comorbid ethanol intake, in a sex-specific fashion that approximates clinical comorbidities better than existing models, and identifies increased CeA GABAergic signaling and a distinct pro-hematopoietic, proinflammatory, and pro-atopic cytokine profile that may aid in treatment.
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Affiliation(s)
- Michael Q Steinman
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Dean Kirson
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Sarah A Wolfe
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Sophia Khom
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Shannon R D'Ambrosio
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | | | - Michal Bajo
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Roman Vlkolinský
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Noah K Hoang
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Anshita Singhal
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Suhas Sureshchandra
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, 92697, USA
| | - Christopher S Oleata
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Ilhem Messaoudi
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, 92697, USA
| | - Eric P Zorrilla
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA.
| | - Marisa Roberto
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA.
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Sundar M, Patel D, Young Z, Leong KC. Oxytocin and Addiction: Potential Glutamatergic Mechanisms. Int J Mol Sci 2021; 22:ijms22052405. [PMID: 33673694 PMCID: PMC7957657 DOI: 10.3390/ijms22052405] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 02/25/2021] [Accepted: 02/25/2021] [Indexed: 11/16/2022] Open
Abstract
Recently, oxytocin (OXT) has been investigated for its potential therapeutic role in addiction. OXT has been found to diminish various drug-seeking and drug-induced behaviors. Although its behavioral effects are well-established, there is not much consensus on how this neuropeptide exerts its effects. Previous research has given thought to how dopamine (DA) may be involved in oxytocinergic mechanisms, but there has not been as strong of a focus on the role that glutamate (Glu) has. The glutamatergic system is critical for the processing of rewards and the disruption of glutamatergic projections produces the behaviors seen in drug addicts. We introduce the idea that OXT has direct effects on Glu transmission within the reward processing pathway. Thus, OXT may reduce addictive behaviors by restoring abnormal drug-induced changes in the glutamatergic system and in its interactions with other neurotransmitters. This review offers insight into the mechanisms through which a potentially viable therapeutic target, OXT, could be used to reduce addiction-related behaviors.
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Seyed Hashemi SG, Merghati Khoei E, Hosseinnezhad S, Mousavi M, Dadashzadeh S, Mostafaloo T, Mahmoudi S, Yousefi H. Personality traits and substance use disorders: Comparative study with drug user and non-drug user population. Personality and Individual Differences 2019; 148:50-6. [DOI: 10.1016/j.paid.2019.05.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Chiorean A, Savoy C, Schmidt LA, Morrison K, Saigal S, Van Lieshout RJ. Childhood Motor Coordination and Adult Affective Experience Among Extremely Low Birth Weight Survivors. Percept Mot Skills 2019; 126:656-674. [PMID: 31067210 DOI: 10.1177/0031512519846769] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Poor motor coordination in childhood has been associated in adulthood with more negative affect, less positive affect, and an increased risk of psychopathology. While survivors of extremely low birth weight (ELBW; < 1,000 grams) are more likely to manifest poor motor coordination than people born at normal birth weight (NBW; > 2,500 g), they have had better mental health outcomes than those with NBW who have motor difficulties. How emotion is experienced is an important risk factor for mental illness; yet, little is known about the affective experience of survivors of ELBW who also have poor motor coordination. In this longitudinal study, we examined interactions between birth weight status and childhood motor coordination on affective experience among 88 ELBW and 89 NBW participants. We first assessed childhood motor coordination at eight years of age, using the Bruininks-Oseretsky Test of Motor Proficiency, and we later gathered self-report data regarding affective style, using the Positive and Negative Affect Scedule and the Affective Styles Questionnaire, when these participants were 30-35 years of age. We found a statistically significant interaction between motor coordination and birth weight status. As motor coordination worsened among ELBW survivors, positive affect increased, while we observed the opposite trend in NBW participants (p < 0.05). There was no interaction for negative affect. Positive affect may contribute to previous findings of better relative adult mental health among ELBW survivors with poor childhood motor coordination. Strategies aimed at optimizing positive affect may be fruitful for optimizing mental health outcomes among preterm survivors and others with reduced motor proficiency.
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Affiliation(s)
- Andreea Chiorean
- 1 Department of Bachelor of Health Sciences (Honours) Program, McMaster University, ON, Canada
| | - Calan Savoy
- 2 Department of Psychiatry and Behavioural Neurosciences, McMaster University, ON, Canada
| | - Louis A Schmidt
- 3 Department of Psychology, Neuroscience & Behaviour, McMaster University, ON, Canada
| | | | - Saroj Saigal
- 4 Department of Pediatrics, McMaster University, ON, Canada
| | - Ryan J Van Lieshout
- 2 Department of Psychiatry and Behavioural Neurosciences, McMaster University, ON, Canada
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Laricchiuta D, Andolina D, Angelucci F, Gelfo F, Berretta E, Puglisi-Allegra S, Petrosini L. Cerebellar BDNF Promotes Exploration and Seeking for Novelty. Int J Neuropsychopharmacol 2018; 21:485-498. [PMID: 29471437 PMCID: PMC5932472 DOI: 10.1093/ijnp/pyy015] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 01/29/2018] [Accepted: 02/13/2018] [Indexed: 12/11/2022] Open
Abstract
Background Approach system considered a motivational system that activates reward-seeking behavior is associated with exploration/impulsivity, whereas avoidance system considered an attentional system that promotes inhibition of appetitive responses is associated with active overt withdrawal. Approach and avoidance dispositions are modulated by distinct neurochemical profiles and synaptic patterns. However, the precise working of neurons and trafficking of molecules in the brain activity predisposing to approach and avoidance are yet unclear. Methods In 3 phenotypes of inbred mice, avoiding, balancing, and approaching mice, selected by using the Approach/Avoidance Y-maze, we analyzed endogenous brain levels of brain derived neurotrophic factor, one of the main secretory proteins with pleiotropic action. To verify the effects of the acute increase of brain derived neurotrophic factor, balancing and avoiding mice were bilaterally brain derived neurotrophic factor-infused in the cortical cerebellar regions. Results Approaching animals showed high levels of explorative behavior and response to novelty and exhibited higher brain derived neurotrophic factor levels in the cerebellar structures in comparison to the other 2 phenotypes of mice. Interestingly, brain derived neurotrophic factor-infused balancing and avoiding mice significantly increased their explorative behavior and response to novelty. Conclusions Cerebellar brain derived neurotrophic factor may play a role in explorative and novelty-seeking responses that sustain the approach predisposition.
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Affiliation(s)
- Daniela Laricchiuta
- Fondazione Santa Lucia, Rome, Italy
- Department of Psychology, Faculty of Medicine and Psychology, University “Sapienza” of Rome, Rome, Italy
| | - Diego Andolina
- Fondazione Santa Lucia, Rome, Italy
- Department of Psychology, Faculty of Medicine and Psychology, University “Sapienza” of Rome, Rome, Italy
| | - Francesco Angelucci
- Fondazione Santa Lucia, Rome, Italy
- Memory Clinic, Department of Neurology, Charles University, 2nd Faculty of Medicine and Motol University Hospital, Prague, Czech Republic
| | - Francesca Gelfo
- Fondazione Santa Lucia, Rome, Italy
- Department of TeCoS, Guglielmo Marconi University, Rome, Italy
| | - Erica Berretta
- Fondazione Santa Lucia, Rome, Italy
- Department of Psychology, Faculty of Medicine and Psychology, University “Sapienza” of Rome, Rome, Italy
- Behavioral Neuroscience PhD Programme
| | - Stefano Puglisi-Allegra
- Fondazione Santa Lucia, Rome, Italy
- Department of Psychology, Faculty of Medicine and Psychology, University “Sapienza” of Rome, Rome, Italy
| | - Laura Petrosini
- Fondazione Santa Lucia, Rome, Italy
- Department of Psychology, Faculty of Medicine and Psychology, University “Sapienza” of Rome, Rome, Italy
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Seillier A, Giuffrida A. The cannabinoid transporter inhibitor OMDM-2 reduces social interaction: Further evidence for transporter-mediated endocannabinoid release. Neuropharmacology 2018; 130:1-9. [DOI: 10.1016/j.neuropharm.2017.11.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 11/07/2017] [Accepted: 11/17/2017] [Indexed: 02/01/2023]
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Abstract
Background The Cognitive Avoidance Theory of Worry argues that worry is a cognitive strategy adopted to control the physiological arousal associated with anxiety. According to this theory, pathological worry, as in Generalized Anxiety Disorder (GAD), is verbal in nature, negative and abstract, rather than concrete. Neuroimaging studies link the expression of worry to characteristic modes of brain functional connectivity, especially in relation to the amygdala. However, the distinctive features of worry (verbal, abstract, negative), and their relationship to physiological arousal, have not so far been mapped to brain function. Methods We addressed this omission by undertaking a resting-state functional magnetic resonance neuroimaging study of 19 patients with GAD and 21 controls, before and after induction of perseverative cognitions, while measuring emotional bodily arousal from heart rate (HR). Seed-based analyses quantified brain changes in whole brain functional connectivity from the amygdala. Results In GAD, the induction increased negative thoughts and their verbal content. In line with predictions, the verbal expression of worry in GAD was associated with higher HR at baseline and attenuated HR increases after induction of perseverative cognitions. Within brain, the increased use of words during worry, and the associated dampening of HR after induction were mediated by the strength of functional connectivity between the amygdala and default mode network ‘hubs’ and the opercular cortex. The negative content of worry was further related to functional communication between amygdala and cingulo-opercular and temporal cortices. Conclusions Findings provide a neurobiological basis for the impact of verbal worry on HR in GAD. More negative worrisome thoughts have more words in GAD and more images in controls. Thinking in words is associated with reduced cardiac reactivity during worry. Verbal, abstract, and negative features of worry have unique neural correlates. Amygdala functional connectivity mediates use of words and HR decrease during worry. A neurobiological basis for the impact of verbal worry on HR in GAD is provided.
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Key Words
- Amygdala
- BDI, Beck Depression Inventory
- BOLD, blood oxygenation level dependent
- DMN, default mode network
- EPI, echoplanar imaging
- Functional connectivity
- GAD, Generalized Anxiety Disorder
- Generalized anxiety disorder
- HC, Healthy Controls
- HR, heart rate
- Heart rate
- NYC-Q, New York Cognition Questionnaire
- New York Cognition Questionnaire
- PCC, posterior cingulate cortex
- PSWQ, Penn State Worry Questionnaire
- RRS, Ruminative Response Scale
- SCID, Structured Clinical Interview for DSM
- STAI, Spielberger State Trait Anxiety Inventory
- Worry
- rsfMRI, resting-state functional magnetic resonance neuroimaging
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Affiliation(s)
- Elena Makovac
- Neuroimaging Laboratory, IRCCS Santa Lucia Foundation, Rome, Italy; Psychiatry, BSMS, Department of Neuroscience, Brighton and Sussex Medical School (BSMS), University of Sussex, Brighton, UK; Centre for Neuroimaging Science, King's College London, London, UK
| | - Jonathan Smallwood
- Department of Psychology, York Neuroimaging Centre, University of York, York, UK
| | - David R Watson
- Psychiatry, BSMS, Department of Neuroscience, Brighton and Sussex Medical School (BSMS), University of Sussex, Brighton, UK
| | - Frances Meeten
- Psychiatry, BSMS, Department of Neuroscience, Brighton and Sussex Medical School (BSMS), University of Sussex, Brighton, UK; Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK
| | - Hugo D Critchley
- Psychiatry, BSMS, Department of Neuroscience, Brighton and Sussex Medical School (BSMS), University of Sussex, Brighton, UK; Sackler Centre for Consciousness Science, University of Sussex, Brighton, UK; Sussex Partnership NHS Foundation Trust Sussex, Sussex, UK
| | - Cristina Ottaviani
- Neuroimaging Laboratory, IRCCS Santa Lucia Foundation, Rome, Italy; Department of Psychology, Sapienza University of Rome, Rome, Italy.
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Lin JT. Fear in virtual reality (VR): Fear elements, coping reactions, immediate and next-day fright responses toward a survival horror zombie virtual reality game. Computers in Human Behavior 2017; 72:350-61. [DOI: 10.1016/j.chb.2017.02.057] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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12
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Husted M, Banks AP, Seiss E. Eating behaviour associated with differences in conflict adaptation for food pictures. Appetite 2016; 105:630-7. [DOI: 10.1016/j.appet.2016.07.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 06/27/2016] [Accepted: 07/03/2016] [Indexed: 10/21/2022]
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13
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Laricchiuta D, Saba L, De Bartolo P, Caioli S, Zona C, Petrosini L. Maintenance of aversive memories shown by fear extinction-impaired phenotypes is associated with increased activity in the amygdaloid-prefrontal circuit. Sci Rep 2016; 6:21205. [PMID: 26875790 PMCID: PMC4753413 DOI: 10.1038/srep21205] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 01/19/2016] [Indexed: 11/08/2022] Open
Abstract
Although aversive memory has been mainly addressed by analysing the changes occurring in average populations, the study of neuronal mechanisms of outliers allows understanding the involvement of individual differences in fear conditioning and extinction. We recently developed an innovative experimental model of individual differences in approach and avoidance behaviors, classifying the mice as Approaching, Balancing or Avoiding animals according to their responses to conflicting stimuli. The approach and avoidance behaviors appear to be the primary reactions to rewarding and threatening stimuli and may represent predictors of vulnerability (or resilience) to fear. We submitted the three mice phenotypes to Contextual Fear Conditioning. In comparison to Balancing animals, Approaching and Avoiding mice exhibited no middle- or long-term fear extinction. The two non-extinguishing phenotypes exhibited potentiated glutamatergic neurotransmission (spontaneous excitatory postsynaptic currents/spinogenesis) of pyramidal neurons of medial prefrontal cortex and basolateral amygdala. Basing on the a priori individuation of outliers, we demonstrated that the maintenance of aversive memories is linked to increased spinogenesis and excitatory signaling in the amygdala-prefrontal cortex fear matrix.
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Affiliation(s)
- Daniela Laricchiuta
- IRCCS Fondazione Santa Lucia, Rome, Italy
- Department of Psychology, University Sapienza of Rome, Rome, Italy
| | - Luana Saba
- IRCCS Fondazione Santa Lucia, Rome, Italy
- Department of Neuroscience, University of Rome “Tor Vergata”, Rome, Italy
| | - Paola De Bartolo
- IRCCS Fondazione Santa Lucia, Rome, Italy
- Department of Sociological and Psychopedagogical Studies, University Guglielmo Marconi of Rome, Rome, Italy
| | - Silvia Caioli
- IRCCS Fondazione Santa Lucia, Rome, Italy
- Department of Neuroscience, University of Rome “Tor Vergata”, Rome, Italy
| | - Cristina Zona
- IRCCS Fondazione Santa Lucia, Rome, Italy
- Department of Neuroscience, University of Rome “Tor Vergata”, Rome, Italy
| | - Laura Petrosini
- IRCCS Fondazione Santa Lucia, Rome, Italy
- Department of Psychology, University Sapienza of Rome, Rome, Italy
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Laricchiuta D. Editorial: Individual differences: from neurobiological bases to new insight on approach and avoidance behavior. Front Syst Neurosci 2015; 9:125. [PMID: 26441557 PMCID: PMC4569743 DOI: 10.3389/fnsys.2015.00125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 08/26/2015] [Indexed: 01/12/2023] Open
Affiliation(s)
- Daniela Laricchiuta
- IRCCS Fondazione Santa Lucia Rome, Italy ; Department of Dynamic and Clinical Psychology, Faculty of Medicine and Psychology, University "Sapienza" of Rome Rome, Italy
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Liu M, Luo J. Relationship between peripheral blood dopamine level and internet addiction disorder in adolescents: a pilot study. Int J Clin Exp Med 2015; 8:9943-9948. [PMID: 26309680 PMCID: PMC4538113] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 06/07/2015] [Indexed: 06/04/2023]
Abstract
OBJECTIVES To explore the association between peripheral blood dopamine level and internet addiction disorder (IAD) in adolescents, this could be used to explain the neurobiological mechanism of Internet addiction disorder. METHODS 33 adolescents with IAD diagnosed by Young's Internet Addiction Test (IAT) and 33 healthy controls matched by gender and age were investigated in the present study. Peripheral blood dopamine levels of the all subjects were determined by Enzyme Linked Immunosorbent Assay (ELISA). RESULTS The difference of peripheral blood dopamine level between adolescents with IAD and their controls had reached significant level (t = 2.722, P < 0.05). Furthermore, the plasma dopamine level was significantly correlated with the Internet Addiction Test score (r = 0.457, P < 0.001). The result of rank correlation analysis showed a significant positive correlation between the plasma dopamine level and the weekly online time (r = 0.380, P < 0.01) and there was no significant correlation between the duration of Internet use and the plasma dopamine level (r = 0.222, P > 0.05). Binary logistic regression analysis showed that DA level and weekly online time were significant variables which contribute to internet addiction. CONCLUSIONS The peripheral blood dopamine level is associated with adolescents' internet addiction. The present study provided new evidence in favor of the hypothesis that dopamine played an important role in IAD.
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Affiliation(s)
- Min Liu
- Gannan Medical University Ganzhou, Jiangxi 341000, China
| | - Jianghong Luo
- Gannan Medical University Ganzhou, Jiangxi 341000, China
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