NeuropsychopharmacologyPub Date : 2024-11-01Epub Date: 2024-06-20DOI: 10.1038/s41386-024-01893-4
Carolina Makowski, Thomas E Nichols, Anders M Dale
{"title":"Quality over quantity: powering neuroimaging samples in psychiatry.","authors":"Carolina Makowski, Thomas E Nichols, Anders M Dale","doi":"10.1038/s41386-024-01893-4","DOIUrl":"10.1038/s41386-024-01893-4","url":null,"abstract":"<p><p>Neuroimaging has been widely adopted in psychiatric research, with hopes that these non-invasive methods will provide important clues to the underpinnings and prediction of various mental health symptoms and outcomes. However, the translational impact of neuroimaging has not yet reached its promise, despite the plethora of computational methods, tools, and datasets at our disposal. Some have lamented that too many psychiatric neuroimaging studies have been underpowered with respect to sample size. In this review, we encourage this discourse to shift from a focus on sheer increases in sample size to more thoughtful choices surrounding experimental study designs. We propose considerations at multiple decision points throughout the study design, data modeling and analysis process that may help researchers working in psychiatric neuroimaging boost power for their research questions of interest without necessarily increasing sample size. We also provide suggestions for leveraging multiple datasets to inform each other and strengthen our confidence in the generalization of findings to both population-level and clinical samples. Through a greater emphasis on improving the quality of brain-based and clinical measures rather than merely quantity, meaningful and potentially translational clinical associations with neuroimaging measures can be achieved with more modest sample sizes in psychiatry.</p>","PeriodicalId":19143,"journal":{"name":"Neuropsychopharmacology","volume":" ","pages":"58-66"},"PeriodicalIF":6.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11525971/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141432396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeuropsychopharmacologyPub Date : 2024-11-01Epub Date: 2024-08-12DOI: 10.1038/s41386-024-01943-x
Oliver Howes, Julia Marcinkowska, Federico E Turkheimer, Richard Carr
{"title":"Synaptic changes in psychiatric and neurological disorders: state-of-the art of in vivo imaging.","authors":"Oliver Howes, Julia Marcinkowska, Federico E Turkheimer, Richard Carr","doi":"10.1038/s41386-024-01943-x","DOIUrl":"10.1038/s41386-024-01943-x","url":null,"abstract":"<p><p>Synapses are implicated in many neuropsychiatric illnesses. Here, we provide an overview of in vivo techniques to index synaptic markers in patients. Several positron emission tomography (PET) tracers for synaptic vesicle glycoprotein 2 A (SV2A) show good reliability and selectivity. We review over 50 clinical studies including over 1700 participants, and compare findings in healthy ageing and across disorders, including addiction, schizophrenia, depression, posttraumatic stress disorder, and neurodegenerative disorders, including tauopathies, Huntington's disease and α-synucleinopathies. These show lower SV2A measures in cortical brain regions across most of these disorders relative to healthy volunteers, with the most well-replicated findings in tauopathies, whilst changes in Huntington's chorea, Parkinson's disease, corticobasal degeneration and progressive supranuclear palsy are predominantly subcortical. SV2A PET measures are correlated with functional connectivity across brain networks, and a number of other measures of brain function, including glucose metabolism. However, the majority of studies found no relationship between grey matter volume measured with magnetic resonance imaging and SV2A PET measures. Cognitive dysfunction, in domains including working memory and executive function, show replicated inverse relationships with SV2A measures across diagnoses, and initial findings also suggest transdiagnostic relationships with mood and anxiety symptoms. This suggests that synaptic abnormalities could be a common pathophysiological substrate underlying cognitive and, potentially, affective symptoms. We consider limitations of evidence and future directions; highlighting the need to develop postsynaptic imaging markers and for longitudinal studies to test causal mechanisms.</p>","PeriodicalId":19143,"journal":{"name":"Neuropsychopharmacology","volume":" ","pages":"164-183"},"PeriodicalIF":6.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11525650/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141971530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Developmental neuroplasticity and adversity-related risk for psychopathology.","authors":"Lucinda M Sisk, Dylan G Gee","doi":"10.1038/s41386-024-01950-y","DOIUrl":"10.1038/s41386-024-01950-y","url":null,"abstract":"","PeriodicalId":19143,"journal":{"name":"Neuropsychopharmacology","volume":" ","pages":"316-317"},"PeriodicalIF":6.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11525816/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141879195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeuropsychopharmacologyPub Date : 2024-11-01Epub Date: 2024-08-08DOI: 10.1038/s41386-024-01938-8
Neda Jahanshad, Petra Lenzini, Janine Bijsterbosch
{"title":"Current best practices and future opportunities for reproducible findings using large-scale neuroimaging in psychiatry.","authors":"Neda Jahanshad, Petra Lenzini, Janine Bijsterbosch","doi":"10.1038/s41386-024-01938-8","DOIUrl":"10.1038/s41386-024-01938-8","url":null,"abstract":"<p><p>Research into the brain basis of psychopathology is challenging due to the heterogeneity of psychiatric disorders, extensive comorbidities, underdiagnosis or overdiagnosis, multifaceted interactions with genetics and life experiences, and the highly multivariate nature of neural correlates. Therefore, increasingly larger datasets that measure more variables in larger cohorts are needed to gain insights. In this review, we present current \"best practice\" approaches for using existing databases, collecting and sharing new repositories for big data analyses, and future directions for big data in neuroimaging and psychiatry with an emphasis on contributing to collaborative efforts and the challenges of multi-study data analysis.</p>","PeriodicalId":19143,"journal":{"name":"Neuropsychopharmacology","volume":" ","pages":"37-51"},"PeriodicalIF":6.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11526024/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141907228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Leveraging large-scale brain networks in rats to understand neurological and psychiatric disorders in humans.","authors":"Hanbing Lu, Yihong Yang","doi":"10.1038/s41386-024-01952-w","DOIUrl":"10.1038/s41386-024-01952-w","url":null,"abstract":"","PeriodicalId":19143,"journal":{"name":"Neuropsychopharmacology","volume":" ","pages":"337-338"},"PeriodicalIF":6.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11526002/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141907231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Virtual reality exposure therapy advances and potential for clinical and experimental use.","authors":"Barbara O Rothbaum, Jacob O Rothbaum","doi":"10.1038/s41386-024-01930-2","DOIUrl":"10.1038/s41386-024-01930-2","url":null,"abstract":"","PeriodicalId":19143,"journal":{"name":"Neuropsychopharmacology","volume":" ","pages":"343-344"},"PeriodicalIF":6.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11526015/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141634062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeuropsychopharmacologyPub Date : 2024-11-01Epub Date: 2024-07-19DOI: 10.1038/s41386-024-01926-y
Sarah Whittle, Lu Zhang, Divyangana Rakesh
{"title":"Environmental and neurodevelopmental contributors to youth mental illness.","authors":"Sarah Whittle, Lu Zhang, Divyangana Rakesh","doi":"10.1038/s41386-024-01926-y","DOIUrl":"10.1038/s41386-024-01926-y","url":null,"abstract":"<p><p>While a myriad of factors likely contribute to the development of mental illness in young people, the social environment (including early adverse experiences) in concert with neurodevelopmental alterations is undeniably important. A number of influential theories make predictions about how and why neurodevelopmental alterations may mediate or moderate the effects of the social environment on the emergence of mental illness. Here, we discuss current evidence supporting each of these theories. Although this area of research is rapidly growing, the body of evidence is still relatively limited. However, there exist some consistent findings, including increased striatal reactivity during positive affective processing and larger hippocampal volumes being associated with increased vulnerability or susceptibility to the effects of social environments on internalizing symptoms. Limited longitudinal work has investigated neurodevelopmental mechanisms linking the social environment with mental health. Drawing from human research and insights from animal studies, we propose an integrated mediation-moderation model and outline future research directions to advance the field.</p>","PeriodicalId":19143,"journal":{"name":"Neuropsychopharmacology","volume":" ","pages":"201-210"},"PeriodicalIF":6.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11526094/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141727586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Post-traumatic stress comorbidity in substance use disorder: machine learning analyses of phenotypic drivers.","authors":"David C Houghton, Heidi M Spratt","doi":"10.1038/s41386-024-01969-1","DOIUrl":"10.1038/s41386-024-01969-1","url":null,"abstract":"","PeriodicalId":19143,"journal":{"name":"Neuropsychopharmacology","volume":" ","pages":"345-346"},"PeriodicalIF":6.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11526105/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142018166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeuropsychopharmacologyPub Date : 2024-11-01Epub Date: 2024-09-18DOI: 10.1038/s41386-024-01979-z
Yosif Zaki, Denise J Cai
{"title":"Memory engram stability and flexibility.","authors":"Yosif Zaki, Denise J Cai","doi":"10.1038/s41386-024-01979-z","DOIUrl":"10.1038/s41386-024-01979-z","url":null,"abstract":"<p><p>Many studies have shown that memories are encoded in sparse neural ensembles distributed across the brain. During the post-encoding period, often during sleep, many of the cells that were active during encoding are reactivated, supporting consolidation of this memory. During memory recall, many of the same cells that were active during encoding and reactivated during consolidation are reactivated during recall. These ensembles of cells have been referred to as the memory engram cells, stably representing a specific memory. However, recent studies question the rigidity of the \"stable memory engram.\" Here we review the past literature of how episodic-like memories are encoded, consolidated, and recalled. We also highlight more recent studies (as well as some older literature) that suggest that these stable memories and their representations are much more dynamic and flexible than previously thought. We highlight some of these processes, including memory updating, reconsolidation, forgetting, schema learning, memory-linking, and representational drift.</p>","PeriodicalId":19143,"journal":{"name":"Neuropsychopharmacology","volume":" ","pages":"285-293"},"PeriodicalIF":6.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11525749/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142292164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}