Psychiatry notes

Apr 16th, 2015
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AETIOLOGY OF MENTAL ILLNESSAetiology can be grouped into three broad categories ie biological, psychological and social factors. The three all interact in causing mental illness and responses to treatment.They are intertwined and inter related.No single theory is sufficient to explain the development of mental illness. The adoption of Biopsychosocial model of disease causation gives a better/ adequate understanding of the disease process (G Engel).A) Biological factors1) Genetics- genes control various aspects of human life eg temperament, body size, intellect, biochemistry.. Study of parents, siblings, twins, close relatives2) Biochemical/Neurochemical- neurotransmitters imbalances in specific regions of brain. Effects of serotonin, dopamine,noradrenaline, gaba, ach. The effects of hormones also vital eg testesterone, oestrogen, cortisol(steroids)3) Physical illness, chemical intoxications, trauma of brain and brain infections may also lead to development of mental disorders, Devtal disorder in brain.B) Psychological factors1) Psychoanalytic theory- S freudThat all human beings are born with innate instincts which govern behavior. Unsatisfied instincts create tension with

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