PSYCH 2AP3 Lecture Notes - Lecture 5: Body Dysmorphic Disorder, Bipolar Disorder, Trichotillomania
16 Mar 2018
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Document Summary
Obsessions: persistent, intrusive thoughts, urges or images that cause anxiety or distress in most individuals, and the individual tries to ignore, suppress or neutralize. Compulsions: repetitive behaviour or thoughts individual compelled to perform in response to an obsession, or according to rigid rules. Obsessions/compulsions take up more than 1 hour/day, or cause clinically significant impairment. Not due to a substance or another medical condition. Disturbance not better explained by symptoms of another mental disorder. For adult ocd, males and female are equal. 10x more common in ocd than general population. 33% of ocd patients have mdd when evaluated. Difficulty dismissing mildly obsessive thought: difficulty -> anxiety, causing more difficulty. Conflict often localized to anal period due to concerns with order, cleanliness. Reduced ocd coincides with lower blood, csf level of serotonin metabolites. Metabolites in csf may not come from brain. Pet scans show more metabolic activity in caudate in ocd than controls.
