Criminology Chapter 5

Criminology Chapter 5 - Chapter 5 Trait Theory...

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Chapter 5- Trait Theory Neurophysiologic conditions and crime Neurophysiology – the study of brain activity Recent research by J. Arturo Silva found: Serial killers exhibit evidence of Asperger’s Disorder which is a neurological impairment that severely affects communication, social skills, behavior, and learning. Recent findings from brain research include the following: *Both violent criminals and substance abusers have impairment in the pre- frontal lobes, thalamus, medial temporal lobe, and superior parietal and left angular gyrus areas of the brain * PET studies of repetitively violent offenders reveal decreases cortical blood flow and hypometabolism in their nondominant frontal and temporal lobes, compared to control subjects. Some even show involvement into the prefrontal region, which affects cognitive understanding *Domestic violence offenders have lower metabolism in the right hypothalamus and decreased correlations between cortical and subcortical brain structures than a group of control subjects *People who are habitual liars maintain a 22 to 26 percent increase in prefrontal white matter and a 36 to 42 percent reduction in prefrontal gray/ white ratios, and a 14.2 percent decrease in prefrontal gray matter compared to control group subjects *Antisocial behavior is influenced by prefrontal dysfunction, a condition that occurs when demands on brain activity overload the prefrontal cortex and result in a lack of control over antisocial behaviors. Because the prefrontal loves have not fully developed in adolescence, they may be overwhelmed. Attention Deficit Hyperactivity Disorder (ADHD)- a developmentally inappropriate lack of attention, along with impulsivity and hyperactivity. Conduct Disorder (CD)-
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Criminology Chapter 5 - Chapter 5 Trait Theory...

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