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Medical Model of Abnormality. Main Features. Classification systems. Psychological signs/symptoms as an indicator of underlying physiological problems. Methods used. PET Scans (Positron Emission Tomography) Depression correlates with increased glucose in the brain (Lingjaerde, 1983)
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Classification systems • Psychological signs/symptoms as an indicator of underlying physiological problems
Methods used • PET Scans (Positron Emission Tomography) • Depression correlates with increased glucose in the brain (Lingjaerde, 1983) • CAT scans • (Computer Assisted Tomography) • MRI (Magnetic Resonance Imaging) • fMRI = functional MRI
Genetic Inheritance • Family Studies • Twin Studies • Adoption Studies
% of people with schizophrenia in relation to biological relatedness (from Gottesman 1991)
Greater understanding • Rapid advances in technology driving theories and treatments • BUT still a new branch - much research to be done • Evidence is inconclusive
Reductionism • Reducing the whole person to small components for research. • If all the components added together work, then explanation is complete • Theorists say that it is not right to reduce the whole person to parts - it doesn't account for the richness of experience etc.
Cause and Effect • Possibility always exists for intervening variables • Cause of disorder may have a psychological basis • Does A cause B or B cause A?
Classification system • Technical advances and attitudes towards disorder may vary across time and culture.
Humane? • Biological disorder seen as an illness - lessens stigma. • BUT patient may come to rely on doctor for treatment rather than taking control themselves.