PSY 105 Lecture Notes - Lecture 22: General Paresis Of The Insane, Mental Disorder, Striatum

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Psychological disorder - condition reflecting persistent, harmful abnormalities of the. 20% of canadian adults suffer these disorder each year. Associated with 4 ds: deviance, distress, dysfunction, danger. Diagnostic and statistical manual of mental disorders (dsm-iv-tr) Used for diagnosis and classification of psychological disorders in north america. International classification of diseases (icd) used elsewhere. Axis 2: personality disorders & mental retardation. Diathesis-stress - person may be predisposed for a mental disorder that remains unexpressed until triggered by stress. Views disorders as illnesses caused by a malfunctioning brain. Specific brain structures ( huntington"s disease, loss of cells in striatum) Involves break from reality in thought processes, emotion, and/or behaviour. Positive symptoms - observable addition of abnormal behavior. Negative symptoms - elimination or reduction of normal behaviors. No ability to take care of self. Antipsychotic drugs reduce positive symptoms of schizophrenia but do not help negative symptoms (ex. chlorpromazine)

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