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Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis

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Does traumatic brain injury predispose individuals to develop schizophrenia?

¹Department of Psychiatry, Robert Wood Johnson Medical School and Outcomes Research USA, Bristol-Myers Squibb, Plainsboro, New Jersey 08536, USA. edward.kim@bms.com

Current Opinion in Psychiatry

|April 3, 2008

Summary

Traumatic brain injury may modify schizophrenia risk in genetically susceptible individuals. However, evidence does not support traumatic brain injury as an independent risk factor for schizophrenia in those without genetic predisposition.

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Controlled Cortical Impact Model for Traumatic Brain Injury

Controlled Cortical Impact Model for Traumatic Brain Injury

Published on: August 5, 2014

Area of Science:

Neuroscience
Psychiatry
Genetics

Background:

Psychosis after traumatic brain injury (TBI) research is hampered by unclear diagnostic criteria and ascertainment bias.
Schizophrenia is a complex disorder influenced by genetic and environmental factors.
The specific relationship between TBI and schizophrenia requires systematic review.

Purpose of the Study:

To systematically review the relationship between traumatic brain injury and schizophrenia.
To clarify the role of TBI as a potential risk factor for schizophrenia.
To address limitations in previous studies on psychosis following TBI.

Main Methods:

Literature review of prospective and retrospective studies.
Analysis of evidence regarding TBI as a risk factor for schizophrenia.
Consideration of genetic vulnerability in TBI-related psychosis.

Main Results:

The literature is inconclusive due to challenges in observational research and case ascertainment.
Traumatic brain injury appears to modify schizophrenia risk in genetically at-risk individuals.
Evidence for TBI as an independent schizophrenia risk factor in genetically unaffected individuals is limited.

Conclusions:

Future research on TBI-related psychosis must differentiate schizophrenia from other psychotic disorders.
Familial risk factors are crucial considerations in studies of TBI and psychosis.
Distinguishing schizophrenia and accounting for genetic risk are essential for advancing research in this area.