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Psychology 110 - March 25 2010.docx

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University of Saskatchewan
PSY 120
Donna Darbellay

Psychology 110 March 25 2010 ‡ Biological treatments for mental disorders 1  Contemporary view alternated between mental disorders as diseases [medical treatments][ and emotional problems [psychological treatment]  Drug treatment on the rise with growing recognition of biological and genetic components to disorders  Medications that alter the production of or response to neurotransmitters in the brain  Economics – availability – access –  Antipsychotic drugs: drugs used primarily in the treatment of schizophrenia and other psychotic disorders. Most designed to block or reduce the sensitivity of brain receptors that respond to dopamine. Reduce agitation, delusions, and hallucinations  side effects ‡ muscular rigidity ‡ tremors ‡ involuntary muscle movements [tardive dyskinesia]  Antidepressant drugs: used primarily in the treatment of mood disorders, especially depression and anxiety. Produce unpleasant physical reactions  Three classes of antidepressants: i. Monoamine oxidase inhibitors [MAOIs] ii. Tricyclic antidepressants iii. Selective serotonin reuptake inhibitors [SSRIs]  Tranquilizers: drugs commonly but often inappropriately prescribed to patients who complain of unhappiness, anxiety, or worry. They increased the activity of GABA.  Lithium carbonate: drug frequently given to people suffering from dipolar disorder [moderates nonrepinephrine and stops overstimulation from glutamate]  *see chapter four “how neurons communicate” * figure 4.6  Read chart 17.1  Caution about drug treatments Psychology 110 March 25 2010  Limitations to drug treatments 2 i. The placebo effect ii. High relapse and dropout rates iii. Dosage problems [therapeutic window] iv. Unknown long-term risks v. Family doctor is doing the prescribing  Psychosurgery: any surgical procedure that destroys selected areas of the brain believe to be involved in emotional disorders or violent, impulsive behaviour  Electroconvulsive therapy (ECT): a procedure use
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