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Blanchard J, Shackman A, Smith J, Orth R, Savage C, Didier P, McCarthy J, Bennett M. Blunted ventral striatal reactivity to social reward is associated with more severe motivation and pleasure de ficits in psychosis. RESEARCH SQUARE 2024:rs.3.rs-4468839. [PMID: 38947025 PMCID: PMC11213233 DOI: 10.21203/rs.3.rs-4468839/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Among individuals living with psychotic disorders, social impairment is common, debilitating, and challenging to treat. While the roots of this impairment are undoubtedly complex, converging lines of evidence suggest that social motivation and pleasure (MAP) deficits play a key role. Yet most neuroimaging studies have focused on monetary rewards, precluding decisive inferences. Here we leveraged parallel social and monetary incentive delay fMRI paradigms to test whether blunted reactivity to social incentives in the ventral striatum-a key component of the distributed neural circuit mediating appetitive motivation and hedonic pleasure-is associated with more severe MAP symptoms in a transdiagnostic sample enriched for psychosis. To maximize ecological validity and translational relevance, we capitalized on naturalistic audiovisual clips of an established social partner expressing positive feedback. Although both paradigms robustly engaged the ventral striatum, only reactivity to social incentives was associated with clinician-rated MAP deficits. This association remained significant when controlling for other symptoms, binary diagnostic status, or ventral striatum reactivity to monetary incentives. Follow-up analyses suggested that this association predominantly reflects diminished striatal activation during the receipt of social reward. These observations provide a neurobiologically grounded framework for conceptualizing the social-anhedonia symptoms and social impairments that characterize many individuals living with psychotic disorders and underscore the need to establish targeted intervention strategies.
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Hatzimanolis A, Tosato S, Ruggeri M, Cristofalo D, Mantonakis L, Xenaki LA, Dimitrakopoulos S, Selakovic M, Foteli S, Kosteletos I, Vlachos I, Soldatos RF, Nianiakas N, Ralli I, Kollias K, Ntigrintaki AA, Stefanatou P, Murray RM, Vassos E, Stefanis NC. Diminished social motivation in early psychosis is associated with polygenic liability for low vitamin D. Transl Psychiatry 2024; 14:36. [PMID: 38238289 PMCID: PMC10796745 DOI: 10.1038/s41398-024-02750-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 01/22/2024] Open
Abstract
Insufficiency of vitamin D levels often occur in individuals with schizophrenia and first-episode psychosis (FEP). However, it is unknown whether this represents a biological predisposition, or it is essentially driven by illness-related alterations in lifestyle habits. Lower vitamin D has also been associated with adverse neurodevelopmental outcomes and predominant negative psychotic symptoms. This study aimed to investigate the contribution of polygenic risk score for circulating 25-hydroxyvitamin D concentration (PRS-vitD) to symptom presentation among individuals with FEP enrolled in the Athens First-Episode Psychosis Research Study (AthensFEP n = 205) and the Psychosis Incident Cohort Outcome Study (PICOS n = 123). The severity of psychopathology was evaluated using the Positive and Negative Syndrome Scale at baseline and follow-up assessments (AthensFEP: 4-weeks follow-up, PICOS: 1-year follow-up). Premorbid intelligence and adjustment domains were also examined as proxy measures of neurodevelopmental deviations. An inverse association between PRS-vitD and severity of negative symptoms, in particular lack of social motivation, was detected in the AthensFEP at baseline (adjusted R2 = 0.04, p < 0.001) and follow-up (adjusted R2 = 0.03, p < 0.01). The above observation was independently validated in PICOS at follow-up (adjusted R2 = 0.06, p < 0.01). No evidence emerged for a relationship between PRS-vitD and premorbid measures of intelligence and adjustment, likely not supporting an impact of lower PRS-vitD on developmental trajectories related to psychotic illness. These findings suggest that polygenic vulnerability to reduced vitamin D impairs motivation and social interaction in individuals with FEP, thereby interventions that encourage outdoor activities and social engagement in this patient group might attenuate enduring negative symptoms.
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Affiliation(s)
- Alex Hatzimanolis
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, Athens, Greece.
- Neurobiology Research Institute, Theodore-Theohari Cozzika Foundation, Athens, Greece.
| | - Sarah Tosato
- Section of Psychiatry, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Mirella Ruggeri
- Section of Psychiatry, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Doriana Cristofalo
- Section of Psychiatry, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Leonidas Mantonakis
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, Athens, Greece
| | - Lida-Alkisti Xenaki
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, Athens, Greece
| | - Stefanos Dimitrakopoulos
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, Athens, Greece
| | - Mirjana Selakovic
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, Athens, Greece
| | - Stefania Foteli
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, Athens, Greece
| | - Ioannis Kosteletos
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, Athens, Greece
| | - Ilias Vlachos
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, Athens, Greece
| | - Rigas-Filippos Soldatos
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, Athens, Greece
| | - Nikos Nianiakas
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, Athens, Greece
| | - Irene Ralli
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, Athens, Greece
| | - Konstantinos Kollias
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, Athens, Greece
| | - Angeliki-Aikaterini Ntigrintaki
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, Athens, Greece
| | - Pentagiotissa Stefanatou
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, Athens, Greece
| | - Robin M Murray
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- National Institute for Health Research, Mental Health Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College, London, UK
| | - Evangelos Vassos
- National Institute for Health Research, Mental Health Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College, London, UK
- Department of Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Nikos C Stefanis
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, Athens, Greece
- Neurobiology Research Institute, Theodore-Theohari Cozzika Foundation, Athens, Greece
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Moe AM, Kilicoglu MFV, Angers K, Huang K, Breitborde NJK. Coordinated specialty care for first-episode psychosis: Effects on social motivation and social pleasure. Schizophr Res 2023; 262:130-131. [PMID: 37950935 DOI: 10.1016/j.schres.2023.10.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 10/28/2023] [Accepted: 10/28/2023] [Indexed: 11/13/2023]
Affiliation(s)
- Aubrey M Moe
- Department of Psychiatry and Behavioral Health, The Ohio State University, Columbus, OH, USA; Department of Psychology, The Ohio State University, Columbus, OH, USA.
| | - Melissa F V Kilicoglu
- Department of Psychiatry and Behavioral Health, The Ohio State University, Columbus, OH, USA
| | - Kaley Angers
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Kexin Huang
- Center for Biobehavioral Health, Nationwide Children's Hospital, Columbus, OH, USA
| | - Nicholas J K Breitborde
- Department of Psychiatry and Behavioral Health, The Ohio State University, Columbus, OH, USA; Department of Psychology, The Ohio State University, Columbus, OH, USA
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