PSYC 100 Chapter Notes - Chapter 22: Schizophreniform Disorder, Schizoaffective Disorder, Major Depressive Disorder

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Jordan Poppenk

Document Summary

Cause a clinically significant impairment in an individual"s ability to function. Aren"t a predictable reaction to an external event. Aren"t the result of an individual"s voluntary choice. Psychoactive substance: acts on the central nervous system, affects brain function and results in changes to a person"s emotions, perceptions, and thoughts. Substance intoxication: person suffers clinically significant negative or harmful behavioral changes/psychological effects because of the influence of a psychoactive substance. Substance withdrawal: person suffers clinically significant negative or harmful behavioral changes/psychological effects because they recently stopped prolonged use of a psychoactive substance. Topic 2: schizophrenia spectrum and other psychotic disorders: Diathesis-stress model is the leading explanation of psychosis and other disorders. Holds that psychological disorders result from a combination of a biological predisposition/traits that may lead to disorders and specific stress-causing events that can trigger a disorder. A person"s diathesis can be genetic or could have been caused by something arising out of early childhood development.