Cited by 40Schizophrenia research and treatmentPsychopathy, Forensic Psychiatry, Sexual OffendingBipolar Disorder and Treatment

Psychosis Risk and Development: What Do We Know From Population-Based Studies?

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Mennigen, Eva, Bearden, Carrie E.·2020·Biological Psychiatry

Abstract

Recent years have seen an advent in population-based studies in children, adolescents, and adults that examine the prevalence, etiology, and developmental trajectories of diverse subclinical psychopathological symptoms that pose a risk for the later development of severe mental illnesses. It is increasingly recognized that most categorically defined psychiatric disorders occur on a spectrum or continuum, show high heterogeneity and symptom overlap, and share genetic and environmental risk factors. We discuss neurodevelopmental underpinnings of psychosis spectrum symptoms and review brain morphometric and functional alterations as well as genetic liability for psychosis in individuals experiencing psychotic symptoms (PSs) in the general population. With regard to brain structure and function, findings of qualitatively similar alterations in individuals experiencing subthreshold PSs and individuals with overt psychotic disorders support the notion of a psychosis continuum. However, genetic and epidemiological studies have emphasized the overlap of PSs and other psychiatric illnesses. In particular, PSs during adolescence appear to be a nonspecific precursor of different psychopathological outcomes. Given the evidence presented in this review, we argue that findings from population-based studies are appropriate to guide policy-making to further emphasize public health efforts. Broadly accessible mental health programs are promising to make a difference in the field of adolescent mental health. However, the specific efficacy of these programs warrants further study, and caution is advised to not overpathologize potentially transient occurrence of mental health problems.

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Authors
Mennigen, E., & Bearden, C. E.
Affiliations
University of California, Los Angeles (US)
Corresponding author
Bearden, Carrie E.
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2020-08
Volume
88
Issue
4
Pages
315-325
ISSN
0006-3223 (ISSN-L)
OpenAlex
W2996381406
Cited by
40
References
137
Citations by year
2026: 4 · 2025: 6 · 2024: 10 · 2023: 6 · 2022: 2 · 2021: 5 · 2020: 6 · 2019: 1
FWCI
0.59
Type
journal article
Language
en
Open access
Locations
  • Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
National Institute of Mental Health
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Social Sciences › Psychology › Clinical Psychology › Psychopathy, Forensic Psychiatry, Sexual Offending
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
Keywords
psychosis risk, psychosis continuum, subclinical psychotic symptoms, brain development, brain morphometry, brain function, genetic susceptibility, psychosis spectrum, adolescent mental health, symptom overlap, developmental trajectories
MeSH terms
Adolescent, Adult, Child, Humans, Mental Health, Psychopathology, Psychotic Disorders, Prevalence

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