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Related Concept Videos

Human Genetics01:28

Human Genetics

664
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
664
Biological Causes of Schizophrenia01:29

Biological Causes of Schizophrenia

115
Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
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Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders01:27

Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders

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Schizophrenia is a neurodevelopmental disorder whose origins are rooted in complex genetic components. Despite our burgeoning understanding, the pathophysiology of this disorder remains incompletely deciphered.
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...
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Diagnostic and Statistical Manual of Mental Disorders (DSM)01:27

Diagnostic and Statistical Manual of Mental Disorders (DSM)

117
The Diagnostic and Statistical Manual of Mental Disorders (DSM) serves as the primary classification system for mental health disorders, providing standardized diagnostic criteria for clinicians and researchers. First published by the American Psychiatric Association (APA) in 1952, the DSM has undergone several revisions to reflect evolving psychiatric understanding. The fifth edition, DSM-5, released in 2013, introduced key updates that expanded diagnostic categories and modified diagnostic...
117
Theoretical Approaches to Psychological Disorder01:29

Theoretical Approaches to Psychological Disorder

271
The development of psychological disorders, which are characterized by deviant, maladaptive, and personally distressing behaviors, has been explored through several theoretical approaches.
Biological approach
The biological approach posits that internal, organic factors are the primary causes of such disorders. This perspective emphasizes brain structure and function, genetic predispositions, and neurotransmitter imbalances. For example, schizophrenia has been associated with both genetic...
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Behavioral Genetics and Its Designs01:23

Behavioral Genetics and Its Designs

462
Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
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Related Experiment Video

Updated: Aug 18, 2025

Mapping Alzheimer's Disease Variants to Their Target Genes Using Computational Analysis of Chromatin Configuration
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Exploring the genetic overlap between twelve psychiatric disorders.

Cato Romero1, Josefin Werme2, Philip R Jansen2,3

  • 1Department of Child and Adolescent Psychology and Psychiatry, section Complex Trait Genetics, Amsterdam Neuroscience, VU University Medical Centre, Amsterdam, The Netherlands.

Nature Genetics
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Summary

Identifying shared genetic factors across psychiatric disorders is complex. While some overlap exists, pinpointing common biological mechanisms remains challenging due to variations in study power and genetic architecture.

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Area of Science:

  • Psychiatric Genetics
  • Genomic Epidemiology
  • Molecular Psychiatry

Background:

  • Psychiatric disorders frequently co-occur, a phenomenon supported by genetic studies showing positive correlations.
  • Understanding shared biological underpinnings is crucial for characterizing general psychiatric disorder liability.
  • Pleiotropy, where single genetic variants influence multiple traits, is a key area of investigation.

Conclusions:

  • Identifying shared biological mechanisms across psychiatric disorders is challenging.
  • Heterogeneity in genetic architecture and statistical power across disorders limits comprehensive discovery.
  • Further research is needed to overcome these challenges in understanding pleiotropy in psychiatric conditions.