Psychology 1000 Chapter Notes - Chapter 16: Aphasia, Schizotypal Personality Disorder, Schizophrenia

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Laura Fazakas- De Hoog

Document Summary

Involves recurrent obsessions or compulsions that are serious enough to adversely affect a person"s life o. Take up about 1 hour of their life. Obsessions persistent anxiety-evoking ideas, thoughts, impulses, or images (cognitive) Compulsions - repetitive behaviors or mental acts to prevent or reduce anxiety or distress o e. g. hoarding compulsion. People with this genetic trait will either get tourette"s in childhood or ocd later in life. Higher than normal activity in frontal lobe (involved in impulse control) Smaller caudate nucleus (so difficulty suppressing incoming impulses) Executive dysfunction model (rapoport, 1991) o o o o. Problem lies in impulse control and behavioral inhibition. Modulatory control model o o o o o. Areas implicated in control of socially appropriate behaviors and motivation. Increased metabolism in the orbital-frontal cortex and medial prefrontal cortex. From unconscious break through into conscious awareness & cause anxiety. Learned an inappropriate and now vicious reinforcement cycle that is difficult to break.