PSYCH 2AP3 Lecture Notes - Lecture 2: Prevalence, Dsm-5, Group Dynamics

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

Document Summary

Interrupts or intrudes on others: adhd- combined type, other non-diagnostic characteristics, general social clumsiness, egocentric. Insensitive to convention, social expectations: difficulty reading facial expressions, aggressive tendencies, poor understanding of group dynamics. Inattentive trajectories lower: hyperactivity diminishes over time. Comorbidity: only half only have adhd, comorbid with depression, anxiety, conduct, mood disorder: 50% of lithium responsive bipolar patients, tourette"s: 40% of (cid:373)ale patie(cid:374)ts. Etiology- psychological processes: attention, selective attention is normal, attentional orienting in space normal, arousal and vigilance is not normal (readiness to attend, executive functions, response inhibition (go, no go test, working memory. Eeg/erp(evoked response potential) results: (cid:1006)(cid:1004)% have ab(cid:374)or(cid:373)al eeg (cid:894)but (cid:1005)5% ge(cid:374)erally(cid:895, less right> left asymmetry in size of prefrontal cortex (right smaller, more cortical slow wave activity (underarousal, weaker erp to stimuli (poor alerting) Neurotransmitters: lower serotonin in the blood stream, dopamine in the caudate, norepinephrine in the reticular formation (attention/alertness)