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Disorders of Childhood and Adolescence- ADHD (5).docx

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Richard B Day

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September 28 , 2012 Psych 2AP3: Abnormal Psychology – Major Disorders Disorders of Childhood and Adolescence: ADHD (5) Looking for endophenotypes - compare full phenotype (full set of symptoms) of the disorder - endophenotypes: internal pieces of the disorder. Advantage: a lot more people to look at - growing trend Temperament and ADHD - personality construct - style with which we respond to things - extraversion: individual whose behaviour is outgoing, leadership, risk-taker, sociable associated with the dopamine activity level  based on dopaminergic circuits: major treatment is to give them stimulants for dopamine  dysfunctional reward circuitry in ADHD - neuroticism: tendency to experience negative emotions, more reactive to stimuli, thought to involve limbic system, amygdalda  related to limbic reactivity to stress  related to range of psychopathologies - conscientiousness: impulsivity, inability to hold back from making decisions  related to executive functions  related to circuitry in prefrontal cortex Environment and ADHD - low birth weight - prenatal alcohol exposure - maternal
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