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The Biomedical Model

The Biomedical Model. www.psychlotron.org.uk. Main assumptions: Psychological disorders are illnesses or diseases affecting the nervous system Abnormal behaviour, thinking and emotion are caused by biological dysfunctions

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The Biomedical Model

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  1. The Biomedical Model www.psychlotron.org.uk • Main assumptions: • Psychological disorders are illnesses or diseases affecting the nervous system • Abnormal behaviour, thinking and emotion are caused by biological dysfunctions • Understanding mental illness involves understanding what went wrong with the brain

  2. The Biomedical Model www.psychlotron.org.uk • Possible causes of abnormal behaviour: • Biochemistry – an imbalance of certain neurotransmitters or hormones might cause parts of the brain to malfunction • Structural damage or abnormality – if the structure of the brain is damaged or improperly formed then thinking, emotion and behaviour may change

  3. The Biomedical Model www.psychlotron.org.uk • Factors that may affect NS functioning: • Genetics – inherited developmental abnormality • Toxicity – chemical poisoning from e.g. drugs or environmental toxins • Infection/disease – causing chemical or structural damage to the brain • Stress – causing abnormal hormonal effects in the long term

  4. Brain Abnormality (Structure) www.psychlotron.org.uk

  5. Brain Abnormality (Structure) www.psychlotron.org.uk

  6. Brain Abnormality (Functioning) www.psychlotron.org.uk

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