Biological approach
- Created by: adelinacrudu
- Created on: 14-08-18 16:37
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- Biological Approach
- Assumptions
- everything psychological is first biological
- biological structure and processes (genes, neurochemistry)
- Behaviour inherited like physical c. (5HT1-D gene or low serotonin = OCD)
- mind and body the same = thoughts and feelings are physical
- Twin Studies - genetic basis of behaviour
- concordance rates - extent to which twins share characteristic
- MZ - higher rates than DZ 68% of both MZ twins have OCD
- concordance rates - extent to which twins share characteristic
- genotype - genetic makeup
- phenotype - expressed genes (environment)
- human behaviour depends on interaction of nature and nurture
- phenotype - expressed genes (environment)
- evolution theory
- behaviour helping survival and reproduction passed on = adaptive genes
- attachment behaviours
- behaviour helping survival and reproduction passed on = adaptive genes
- everything psychological is first biological
- Evaluation
- Strengths
- scientific methods
- scanning techniques and drug trials
- not open to bias - based on reliable data
- scanning techniques and drug trials
- real-life application
- Psychoactive drugs to treat mental illnesses
- helped sufferers and revolutionise treatment
- Psychoactive drugs to treat mental illnesses
- scientific methods
- Limitations
- Difficult to establish cause and effect with neurotransmitters
- changing levels of neurotransmitters is assuming neurotransmitter is cause
- claiming to discover causes with an association
- changing levels of neurotransmitters is assuming neurotransmitter is cause
- very determinist = governed by biological processes we can't control
- difficult to separate nature and nurture
- family exposed to same environment - confounding variables
- Difficult to establish cause and effect with neurotransmitters
- Strengths
- Assumptions
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