Mild traumatic brain injury (mTBI) and schizophrenia spectrum disorders (SSD) are conditions characterized by frontal lobe deficits. Past research has shown increased violent and aggressive behavior in both conditions; however, few studies have examined the mechanisms driving this relationship, particularly in non-athlete or non-veteran populations. The current study examined the neurodegenerative effects of repeated mTBI over time on cognitive flexibility and stability deficits in a homeless population. Additionally, we investigated the mediating effects of these deficits on the impact of both repeated lifetime mTBI and presence of an SSD on violent crime. Consistent with expectations, the number of lifetime mTBIs positively predicted violence levels across multiple measures of violent crime, however cognitive flexibility and stability deficits did not mediate this relationship. Furthermore, comorbidity of mTBI and SSD increased the frequency of violent crimes greater than either condition alone. Implications for risk assessment, intervention strategies and violence reduction are discussed.
|Advisor:||Pedersen, William C.|
|Commitee:||Schug, Robert A., Span, Sherry A.|
|School:||California State University, Long Beach|
|School Location:||United States -- California|
|Source:||MAI 58/01M(E), Masters Abstracts International|
|Subjects:||Clinical psychology, Criminology|
|Keywords:||Comorbidity, Mild traumatic brain injury, Neurocognitive, Neuropsychology, Schizophrenia, Violent crime|
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