PSYC 362 Lecture Notes - Lecture 15: Atypical Antipsychotic, Bipolar Disorder, Prefrontal Cortex
14 Aug 2016
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Document Summary
Represents a disorder of thought and emotion but not a split personality. Positive symptoms include delusion, hallucination and thought disorder. Delusions are beliefs that are contrary to reality. Hallucination are perceptions that occur in the absence of stimuli (often auditory and or olfactory) Negative symptoms involve a loss of emotional expressiveness andf responsiveness. Poverty of speech and low initiative, lack of curiosity. That rate of prevalence of schizophrenia in different populations is similar world wide. About 1% life time risk for schizophrenia like disorders. Accounts for around 75% of all mental health expenditures in industrialized countries. The heritability of schizophrenia is a strong indicator of a biological basis fro schizophrenia. Adult schizophrenic that were adopted as children are like to have schizophrenic biological relatives. Concordance fates for schizophrenics are higher for identical than for fraternal twins. No single gene has been identified fro schizophrenia. Genes may pass on a susceptibility to develop schizophrenia.
