PSYCH 2AP3 Lecture Notes - Lecture 7: Prevalence, Mood Disorder, Cerebellum

• School: McMaster University
• Department: Psychology
• Course: PSYCH 2AP3
• Professor: Richard B Day

Document Summary

Sampled 6. 4 million children 4-17 years of age. Sampled ~39,000 children 4-17 years of age. Usi(cid:374)g visser"s data, (cid:272)al(cid:272)ulated (cid:1008)(cid:1007)% i(cid:374)(cid:272)rease i(cid:374) adhd diag(cid:374)oses (cid:271)etwee(cid:374) (cid:1006)00(cid:1008)- Phi type starts in nursery or primary school, more common in boys than girls. Pi type starts in primary or high school, equally common in boys and girls. Overall, twice as common in boys than girls; more common among teens. Accounts for about 50% of childhood psychiatric patients. 30% increase in diagnoses from 1997 2006. Less right > left symmetry in size of prefrontal context. 90% with right cortical lesions have adhd. Low blood flow in caudate and frontal lobes. High blood flow in primary sensory cortices. Stimulants reduce flow in sensory cortices, increase flow in basal ganglia. Total brain volume reduction: prefrontal cortex, caudate nucleus, amygdala, Thinner cortex for those symptoms worsened after childhood. Abnormal patterns of connectivity between brain regions.