Psychology 2030A/B Chapter Notes - Chapter 13: Brief Psychotic Disorder, Middle Temporal Gyrus, Psychosis

• School: Western University
• Department: Psychology
• Course: Psychology 2030A/B
• Professor: Ian Nicholson

Document Summary

Chapter 13 schizophrenia spectrum and other psychotic disorders. Emil kraeplin provided most enduring description/categorization of schizophrenia. Combined several symptoms of insanity that had been thought of as reflecting separate disorders: catatonia alternating immobility and excited agitation, hebephrenia silly and immature emotionality, paranoia delusions of grandeur or persecution. Associative splitting of basic functions of personality. Breaking of associative threads or destruction of forces that connect one function to another. Psychotic characterizes unusual behaviour (usually delusions and hallucinations) Positive symptoms symptoms around distorted reality: delusions of grandeur. Believing you are famous or important: delusions of persecution. Cotard"s syndrome: believing some part of their body has changed in an impossible way. Capgras syndrome: believing someone they know has been replaced by a double. In fmri, those with severe delusions show smaller n400 brain waves to target words inconsistent to category (n400 is index for integrating new info) Delusions may serve as an adaptive function: hallucinations. Experience of sensory events without input from environment.