Warning of web addict danger Read the article and answer the following questions: 1. Identify the definition of abnormality used by the doctor in the article. 2. What psychopathology is linked to internet addiction? 3. From the findings of the research can we conclude that the internet causes depression?
By the end of the lesson you will be able to: 1. State how the biological approach explains what causes psychopathology. 2. List 3 biological causes of psychopathology. 3. Describe one biological cause of psychopathology.
According to the biological approach or medical model abnormal behaviour reflects an underlying ‘ disease ’ process and can be thought of as an illness. The Biological Approach
Mental health problems are regarded as illnesses. Mental health problems are caused by damaged or malfunctioning biology.
Different parts of the brain control specific psychological and physical processes: How we think. What we feel. Our behaviour.
Abnormal biochemistry Neurotransmitters are the chemicals that brain cells use to communicate. Biological cause 1 An imbalance in neurotransmitters can lead to abnormal thinking , feeling and behaviour .
According to the biological approach depression is linked to an imbalance in a neurotransmitter called serotonin. People become depressed when the level of serotonin in in areas of the brain that regulate feelings is too low.
According to the biological approach schizophrenia is linked to an imbalance in a neurotransmitter called dopamine. People become schizophrenic when the level of dopamine in the brain is too high.
Biological cause 2 Abnormal neuroanatomy Depression may be caused by structural abnormalities in the brain. Schizophrenia may be caused by tissue loss in the brain, especially grey matter. Research has shown that schizophrenics have enlarged spaces in their brains due to the shrinkage of brain tissue.
Biological cause 3 Genetics According to the biological approach we inherit mental illnesses in the same way we may inherit physical characteristics.
Read p.184 of your textbook: ‘Genetic inheritance’
(a) List three biological causes of psychopathology (3 marks) (b) Outline one of the causes selected in (a) (3 marks)
Psychopathology results from disorders of biological systems. Mental disorders are ‘illnesses’ and treated like physical illness. Biological approach
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