Berit Hartjen, Shahria Hafiz Kakon, Navin Rahman, Garrett Greaves, Wanze Xie, Fahmida Tofail, Rashidul Haque, Charles A Nelson
{"title":"The association between malnutrition and cognitive development in infancy as manifest in EEG functional connectivity and power spectral density","authors":"Berit Hartjen, Shahria Hafiz Kakon, Navin Rahman, Garrett Greaves, Wanze Xie, Fahmida Tofail, Rashidul Haque, Charles A Nelson","doi":"10.1101/2024.09.11.24313505","DOIUrl":"https://doi.org/10.1101/2024.09.11.24313505","url":null,"abstract":"Malnutrition, particularly undernutrition, is a critical global health challenge, contributing to nearly half of all deaths among children under 5 and severely impacting physical and mental health, along with neural and cognitive development. Prior research by Xie et al. (2019a) linked growth faltering to altered EEG functional connectivity (FC) at 36 months and poorer cognitive outcomes at 48 months; however, no associations were found at 6 months for EEG measures or at 27 months for cognitive outcomes. Our study investigates these relationships in a sample of 12-month-old infants in Dhaka, Bangladesh, using various growth measurements (height/length-for-age, weight-for-age, weight-for-height/length, head-circumference-for-age, and mid-upper-arm-circumference-for-age z-scores) as indicators of nutritional status. Brain development was assessed through EEG, focusing on power spectral density (PSD) and FC, while cognitive development was evaluated with the Bayley Scales of Infant and Toddler Development, Fourth Edition. Our findings reveal that, at 12 months, growth faltering, indicative of undernutrition, was associated with reduced PSD, while initial correlations with increased FC did not remain significant after false discovery rate (FDR) correction. PSD was further positively linked to cognitive development, but associations with FC were not significant post-correction. Notably, EEG PSD in the theta and alpha bands mediated the relationship between malnutrition and behavioral outcomes. These results underscore the early impact of malnutrition on brain development, highlighting the importance of PSD in understanding neural development in this context. Our study emphasizes the need for early intervention and continuous monitoring to mitigate the adverse effects of malnutrition on infant brain and cognitive development.","PeriodicalId":501388,"journal":{"name":"medRxiv - Psychiatry and Clinical Psychology","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142265428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thomas Carrier, Isabelle Rouleau, Marie-Anne St-Georges, Maxime Montembeault
{"title":"Deficits in the knowledge of social norms and their underlying mechanisms in Alzheimer's disease","authors":"Thomas Carrier, Isabelle Rouleau, Marie-Anne St-Georges, Maxime Montembeault","doi":"10.1101/2024.09.11.24312998","DOIUrl":"https://doi.org/10.1101/2024.09.11.24312998","url":null,"abstract":"Compared to other components of social cognition, knowledge of social norms has received less attention, even more in AD. While semantic memory deficits have been identified early in the AD disease course, no study has delved into the knowledge of social norms at these preliminary stages, although evidence suggests it shares common ground with semantic memory. Additionally, it is unclear whether the knowledge of social norms in AD is associated with deficits in social cognition, as seen in behavioral variant bvFTD. Finally, how social norms knowledge impairments predicts behaviours in real-world settings remains unknown in the context of AD. This study included 286 individuals suffering with MCI, 157 with AD, 285 with bvFTD along with 384 cognitively unimpaired older healthy controls (HC). Participants were selected from the National Alzheimers Coordinating Center. Participants completed the Social Norms Questionnaire (SNQ) which assesses the tendency to break or overadhere to social norms. They also completed tests assessing executive, semantic and socioemotional functions, along with tests measuring spontaneous interpersonal behaviours. Between-group comparisons show that individuals with AD and MCI break and overadhere to social norms significantly more than HC, while they perform better than individuals with bvFTD. Knowledge of social norms was mainly associated with semantic knowledge across groups (controlling for age, sex, education, and disease severity), and predicted insensitivity and disinhibition severity in patients. Altogether, this study extends findings of previous studies by focusing on social norms knowledge underlying mechanisms.","PeriodicalId":501388,"journal":{"name":"medRxiv - Psychiatry and Clinical Psychology","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142265277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Clive Ballard, Joanne McDermid, Kathryn Mills, Adrienne Sweetnam, Jane Fossey
{"title":"Impact of the WHELD/Brief Psychosocial Therapy intervention on psychosis in people with dementia: A Cluster Randomized Trial","authors":"Clive Ballard, Joanne McDermid, Kathryn Mills, Adrienne Sweetnam, Jane Fossey","doi":"10.1101/2024.09.12.24313538","DOIUrl":"https://doi.org/10.1101/2024.09.12.24313538","url":null,"abstract":"Neuropsychiatric Symptoms (NPS), particularly psychosis, are common in dementia and can significantly impact patient outcomes, caregivers and disease trajectory. Psychosis, which includes hallucinations and delusions, occurs in up to 50% of people with dementia and has been linked with lower quality of life and faster cognitive decline. While best practice guidelines have highlighted the importance of non-pharmacological treatments for NPS, evidence-based non-pharmacological approaches are limited. This exploratory analysis of a cluster randomized control trial (RCT) from the WHELD programme compares the WHELD/Brief Psychosocial Therapy intervention with treatment as usual in a 9-month trial across 69 UK nursing homes (N=8477, 553 completed). The current report analyzed outcomes for the participants with dementia-related psychosis (N=163) participating in the trial. Whilst the WHELD/Brief Psychosocial Therapy intervention did not significantly reduce NPI psychosis score, it did significantly improve apathy (p=0.006), agitation (p=0.038) and quality of life (p=0.01) in participants with psychosis. In addition there was a non-significant numerical improvement in caregiver perceived disruptiveness. These findings suggest that whilst the WHELD/ Brief Psychosocial Therapy intervention does not directly alleviate psychosis in people with dementia, it does significantly improve related neuropsychiatric symptoms and quality of life, offering meaningful benefits to people with dementia experiencing distressing psychotic symptoms.","PeriodicalId":501388,"journal":{"name":"medRxiv - Psychiatry and Clinical Psychology","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142265278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aarn Choi, Joanne McDermid, Kathryn Mills, Adrienne Sweetnam, Jane Fossey, Zunera Khan, Clive Ballard
{"title":"Non-pharmacological interventions for psychotic symptoms in people with dementia: a Delphi consensus","authors":"Aarn Choi, Joanne McDermid, Kathryn Mills, Adrienne Sweetnam, Jane Fossey, Zunera Khan, Clive Ballard","doi":"10.1101/2024.09.12.24313578","DOIUrl":"https://doi.org/10.1101/2024.09.12.24313578","url":null,"abstract":"Background: Psychotic symptoms such as delusion and hallucinations are common in people with dementia. They are associated with various deleterious outcomes including reduced quality of life and increased caregiver burden. Pharmacological interventions to combat psychotic symptoms have shown limited efficacy and can be associated with significant adverse events. Non-pharmacological interventions are recommended as the first line option for treatment, however there is a paucity of evidence for specific non-pharmacological options to primarily target psychotic symptoms in people with dementia. Further work is needed to identify, adapt and develop possible non-pharmacological options to target psychotic symptoms in dementia. Aim: To establish which non-pharmacological interventions could be used or adapted to treat psychotic symptoms and/or confer benefits in people with dementia Design: Modified Delphi consensus process. Two rounds of feedback were conducted and included a directed scoping review, based on the interventions recommended in the first round of the Delphi. Participants: An expert panel consisted of 12 members with clinical and research expertise in managing psychotic symptoms in people with dementia Results: There were three top nominated treatment options: cognitive behavioural therapy (CBT), family intervention, and personalized activities/environmental/sensory interventions, without a clear priority between the 3 approaches. The WHELD/Brief Psychosocial Therapy programme focussing on personalized activities improves concurrent neuropsychiatric symptoms in people with dementia related psychosis. Preliminary studies also suggest that combining personalized activities with family training may improve the direct impact on psychosis. There are also opportunities to adapt CBT interventions for people with psychosis related to early or mild dementia. Conclusions: There were clear recommendations for three non-pharmacological options that could be used or adapted to benefit people with psychosis in the context of dementia.","PeriodicalId":501388,"journal":{"name":"medRxiv - Psychiatry and Clinical Psychology","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142265276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Adrianna P Kepinska, Shelby Smout, Thalia Robakis, Lily Cohen, Ingrid Christina Gustavsson Mahjani, Alkistis Skalkidou, Veerle Bergink, Behrang Mahjani
{"title":"Association of Parental Prenatal Mental Health on Offspring Neurodevelopmental Disorders: A Systematic Review and Meta-Analysis","authors":"Adrianna P Kepinska, Shelby Smout, Thalia Robakis, Lily Cohen, Ingrid Christina Gustavsson Mahjani, Alkistis Skalkidou, Veerle Bergink, Behrang Mahjani","doi":"10.1101/2024.09.12.24313571","DOIUrl":"https://doi.org/10.1101/2024.09.12.24313571","url":null,"abstract":"Objective: Parental prenatal mood and anxiety disorders (PMAD) are linked to child neurodevelopmental disorders (NDDs), but evaluations of the magnitude and mechanisms of this association are limited. This study estimates the strength of the association and whether it is impacted by genetic and environmental factors. Method: A systematic search of PubMed, CENTRAL, PsycINFO, OVID, and Google Scholar was performed for articles published from January 1988 to January 2024. Of 2,170 articles screened, 64 met the inclusion criteria. Meta-analyses were conducted on 20 studies, and 44 were included in the narrative synthesis. We conducted random-effects meta-analyses, along with tests for heterogeneity (I^2) and publication bias (Egger's test). The review followed PRISMA and MOOSE guidelines. Results: Maternal PMADs were associated with a significantly increased risk of ADHD (OR 1.91, 95% CI 1.45-2.52) and ASD (OR 1.57, 95% CI 1.37-1.81) in children. Paternal PMADs were also associated with the risk of NDDs, with combined odds for ASD and ADHD (OR 1.24, 95% CI 1.15-1.34). Several studies suggested that the link between parental PMADs and offspring NDDs might be impacted by both genetic and environmental factors, including the impact of ongoing parental depression on child behavior. Conclusions and Relevance: Parental PMADs are significantly associated with an increased risk of NDDs in children. These associations may be influenced by both genetic predispositions and environmental factors. Understanding these pathways is important for informing interventions aimed at mitigating mental health risks in families and supporting child development.","PeriodicalId":501388,"journal":{"name":"medRxiv - Psychiatry and Clinical Psychology","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142265279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yanli Zhang-James, John Paliakkara, Joshua Schaeffer, Joseph Strayhorn, Stephen Faraone
{"title":"Psychiatric, Neurological, and Somatic Comorbidities in Intermittent Explosive Disorder: a retrospective cohort study of electronic health records","authors":"Yanli Zhang-James, John Paliakkara, Joshua Schaeffer, Joseph Strayhorn, Stephen Faraone","doi":"10.1101/2024.09.12.24313553","DOIUrl":"https://doi.org/10.1101/2024.09.12.24313553","url":null,"abstract":"Importance: Intermittent Explosive Disorder (IED) is an understudied psychiatric condition that presents with repeated episodes of impulsive aggression and poorly regulated emotional control, often resulting in interpersonal and societal consequences. Better understanding of comorbidities will allow for enhanced screening, diagnosis, and treatment of patients. Objective: To investigate prevalence and associations of IED with psychiatric, neurological, and somatic disorders using real-world data\u0000Design: Matched cohorts of patients with or without IED diagnosis were identified using data from the TriNetX Research Network (until January 31, 2024). Cox proportional hazard models were used to estimate and compare the probabilities of acquiring other diagnoses using patients' available medical records.\u0000Setting: Analysis of electronic medical records from two patient populations.\u0000Participants: 30,357 individuals with IED and equal number of demographically matched individ-uals without IED from the TriNetX Research.\u0000Exposure: IED diagnosis identified through the associated ICD codes.\u0000Main Outcomes and Measures: The main outcomes were ICD-10-CM diagnostic categories and root codes for disorders and health conditions in both cohorts. Main measures are total numbers and proportions of patients who had the diagnostic codes, as well as adjusted hazard ratios for IED diagnosis. Results: Although only 0.03% of the total patient population had an IED diagnosis, we found ex-tensive and widespread comorbidities with psychiatric, neurological and somatic conditions. A significant 95.7% of the individuals with IED had another psychiatric diagnosis. All psychiatric sub-categories and 95% of the psychiatric diagnoses were significantly associated with IED, with HRs ranging from 2 to 77. Among neurological conditions, neurodegenerative diseases and epi-lepsy had the highest HRs, followed by extrapyramidal and movement disorders, cerebral palsy and other paralytic syndromes, and sleep disorders. Notable associations with IED also includes conditions such as obesity, hyperlipidemia, hypertension, and GERD.\u0000Conclusion and Relevance: Our findings illuminate the extensive comorbid relationships be-tween IED and psychiatric, neurological, and somatic disorders. This underscores the necessity for an integrated diagnostic and treatment approach that addresses both the psychological and physical health aspects of IED. Additionally, our work highlights the need for more accurate and inclusive diagnosis of IED in patients with mental disorders.","PeriodicalId":501388,"journal":{"name":"medRxiv - Psychiatry and Clinical Psychology","volume":"101 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142265280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cognitive and Mental Health Profiles of Binge-Eating Populations with and without Comorbid Addiction","authors":"Jake Jeong, Jungwon Jang, Giho Jeon, Kwangyeol Baek","doi":"10.1101/2024.09.11.24313520","DOIUrl":"https://doi.org/10.1101/2024.09.11.24313520","url":null,"abstract":"Binge eating disorder (BED) is one of the most prevalent eating disorders and involves an increased risk of mental health problems, obesity and metabolic disease. Recent studies suggest that BED is similar to addictive disorders in its phenomenology and neurobiological mechanisms. Comorbid addiction (e.g., substance use disorders and behavioral addiction) is also very frequent in BED patients. However, it is still unclear whether BED population with comorbid addictions differ in their cognitive and mental health characteristics (e.g., impulsivity, behavioral inhibition, self-control, emotion regulation, mood and anxiety) than those without comorbid addiction. In the present study, we compared various psychometric scales across 30 binge-eating individuals with co-occurring addictive behaviors (i.e., alcohol, nicotine, gambling, and video games), 32 binge-eating individuals without addiction, and 178 healthy control subjects with neither binge-eating nor addiction. Both binge-eating groups showed a significant increase in inhibition motivation (BAS/BIS-inhibition), perceived stress, and state/trait anxiety compared to healthy controls, but there was no difference between the two binge-eating groups. Higher impulsivity and lower self-control were observed in both binge-eating populations to a significantly larger extent in the group with comorbid addiction. Interestingly, significantly increased depression and impaired emotion regulation (less use of cognitive reappraisal) were observed only in the binge-eating group with comorbid addiction when compared to the healthy controls. Our findings demonstrated the commonality and difference in binge-eating populations with and without comorbid addiction. It will help to elucidate cognitive and mental health aspects of comorbid addiction in BED and develop more tailored diagnoses and treatments.","PeriodicalId":501388,"journal":{"name":"medRxiv - Psychiatry and Clinical Psychology","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142196683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Julia Sealock, Justin D Tubbs, Allison M Lake, Peter Straub, Jordan W. Smoller, Lea K. Davis
{"title":"Cross-EHR validation of antidepressant response algorithm and links with genetics of psychiatric traits","authors":"Julia Sealock, Justin D Tubbs, Allison M Lake, Peter Straub, Jordan W. Smoller, Lea K. Davis","doi":"10.1101/2024.09.11.24313478","DOIUrl":"https://doi.org/10.1101/2024.09.11.24313478","url":null,"abstract":"Objective: Antidepressants are commonly prescribed medications in the United States, however, factors underlying response are poorly understood. Electronic health records (EHRs) provide a cost-effective way to create and test response algorithms on large, longitudinal cohorts. We describe a new antidepressant response algorithm, validation in two independent EHR databases, and genetic associations with antidepressant response. Method: We deployed the algorithm in EHRs at Vanderbilt University Medical Center (VUMC), the All of Us Research Program, and the Mass General Brigham Healthcare System (MGB) and validated response outcomes with patient health questionnaire (PHQ) scores. In a meta-analysis across all sites, worse antidepressant response associated with higher PHQ-8 scores (beta = 0.20, p-value = 1.09 x 10-18). Results: We used polygenic scores to investigate the relationship between genetic liability of psychiatric disorders and response to first antidepressant trial across VUMC and MGB. After controlling for depression diagnosis, higher polygenic scores for depression, schizophrenia, bipolar, and cross-disorders associated with poorer response to the first antidepressant trial (depression: p-value = 2.84 x 10-8, OR = 1.07; schizophrenia: p-value = 5.93 x 10-4, OR = 1.05; bipolar: p-value = 1.99 x 10-3, OR = 1.04; cross-disorders: p-value = 1.03 x 10-3, OR = 1.05). Conclusions: Overall, we demonstrate our antidepressant response algorithm can be deployed across multiple EHR systems to increase sample size of genetic and epidemiologic studies of antidepressant response.","PeriodicalId":501388,"journal":{"name":"medRxiv - Psychiatry and Clinical Psychology","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142196688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Breno Satler Diniz, Zhiduo Chen, David Steffens, Richard Fortinski, Luke C Pilling, George Kuchel, Chia-Ling Kuo
{"title":"Proteogenomic signature of risk of Alzheimer's disease and related dementia risk in individuals with a history of major depression disorder","authors":"Breno Satler Diniz, Zhiduo Chen, David Steffens, Richard Fortinski, Luke C Pilling, George Kuchel, Chia-Ling Kuo","doi":"10.1101/2024.09.11.24313493","DOIUrl":"https://doi.org/10.1101/2024.09.11.24313493","url":null,"abstract":"The mechanisms linking a history of major depressive disorder (MDD) to an increased risk of Alzheimer disease and related dementia (ADRD) are not fully understood. Using the UK Biobank available proteomic and genomic data, we evaluated the biological mechanisms linking both conditions. In participants with a history of MDD at baseline (n=3,615), we found that plasma levels of NfL, GFAP, PSG1 were associated with higher risk (HR=1.38; 1.37; 1.34, respectively; all adjusted p-values<0.05), while VGF, GET3, and HPGDS were associated with lower risk of incident ADRD (n=150) (HR=0.73; 0.71; 0.66, respectively; all adjusted p-values<0.05) during a mean follow-up of 13.7 years (SD=2.2). Two-sample Mendelian randomization analysis using cis-pQTLs genetic instruments revealed that a lower protein expression of apolipoprotein E and higher IL-10 receptor subunit B were causally linked to incident ADRD. Finally, we developed a Proteomic Risk Score (PrRSMDD-ADRD), which showed strong discriminative power (C-statistic = 0.84) to identify participants with MDD that developed ADRD upon follow-up. In addition to demonstrating an association between plasma proteins associated with inflammation and future ADRD risk in individuals with MDD, our findings include an element of causality using Mendelian Randomization (MR) and PrRSMDD-ADRD can be useful to identify individuals with the highest risk to develop ADRD in a highly vulnerable population.","PeriodicalId":501388,"journal":{"name":"medRxiv - Psychiatry and Clinical Psychology","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142196684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mapping the Psychopathic Brain: Divergent Neuroimaging Findings converge onto a Common Brain Network","authors":"Jules R. Dugre, Stephane A De Brito","doi":"10.1101/2024.09.12.24313535","DOIUrl":"https://doi.org/10.1101/2024.09.12.24313535","url":null,"abstract":"Psychopathy is a personality disorder characterized by a constellation of interpersonal, affective, lifestyle, and antisocial features. However, its neural underpinnings remain poorly understood because functional neuroimaging studies have produced disparate findings. Here, we tackled this lack of replication by investigating whether peak coordinates of studies on psychopathy could in fact map onto a common functional connectivity network. An updated meta-analysis of 23 functional neuroimaging studies (534 cases vs 594 controls) first revealed no significant regional spatial convergence. However, using functional connectomes of 1,000 healthy participants, we demonstrated that the heterogeneous study findings do indeed converge onto a common brain network with a replicability reaching up to 85.2% across studies. We subsequently showed strong associations between this Psychopathy Network and a lesion network of 17 lesion sites causally linked to antisocial behaviors, as well as its association with neurotransmission systems and genetic markers previously implicated in the pathophysiology of psychopathy. Taken together, our study highlights the importance of examining the neural correlates of psychopathy from a network perspective, which can be validated using a multilevel approach, encompassing neural, genetic and neurochemical data. Ultimately, this approach may pave the way for novel and more personalised treatments.","PeriodicalId":501388,"journal":{"name":"medRxiv - Psychiatry and Clinical Psychology","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142196690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}