Outline and evaluate psychological explanations for schizophrenia (24) One psychological explanation of SZ was put forward by Bateson et al (1956) who looked at childhood as a base for developing SZ‚ for example the interactions children have with their mothers. His explanation‚ the Double Bind theory‚ states that schizophrenia can occur due to conflicting messages given from parents to their children‚ for example when a parent expresses care but does so in a critical way. This means that the child
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Outline and evaluate psychological explanations of schizophrenia (24 marks) Brown and Birley studied stressful life events in the role of relapse in schizophrenics. They found that 50% of people experience a stressful life event e.g. death‚ relationship break-up‚ job loss etc. in the 3 weeks prior to a schizophrenic episode. A control sample reported a low and unchanging level of stressful life events over the same period. However not all evidence supports the role of life events. For example‚
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Outline and evaluate the biological explanation of depression. Biological explanation of depression can be explained by neurotransmitter dysfunction. Neurotransmitters such as noradrenalin and serotonin have been shown to be linked with depression. Bunney at al (1965) found that there was low levels of noradrenaline function in the brain of depressed individuals. Also‚ post mortem studies found increased noradrenaline receptors in the brains of depressed suicide victims. When there is low noradrenaline
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evaluate biological explanations of OCD (10 marks) The biological approach as an explanation of OCD believes that the disorder is caused by a fault in our body‚ either through genes‚ hormones‚ the brain‚ or neurotransmitters‚ therefore suggesting that OCD is caused by our nature‚ rather than our upbringing. This means that since we are born with the body we have‚ if we have OCD‚ it is innate within us. One biological explanation for OCD is the genetic explanation. The genetic explanation believes
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Discuss issues of reliability and validity associated with the classification and diagnosis of phobic disorders (24 marks) The biological explanation for the acquisition of phobic disorders establishes that phobias are caused by genetics‚ innate influences and the principles of biochemistry. This theory recognizes that an oversensitive fear response may be inherited‚ causing abnormal levels of anxiety. This is illustrated in the basis of inheritance‚ particularly the adrenergic theory that convicts
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Outline and evaluate biological explanations for aggression (24) The biological explanation for aggression states that aggression is innate behavior in people and the environment around them does not cause it. Neurotransmitters in the brain‚ chemicals that allow impulses to be transmitted from one area to another‚ can be used to explain why some people are aggressive. There is evidence to suggest that the neurotransmitters serotonin and dopamine are linked to aggression‚ low levels of serotonin
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Biological explanations for anorexia nervosa Biological explanations for anorexia nervosa include neural explanations and evolutionary explanations. 1st BIOLOGICAL EXPLANATION - Neurotransmitters -Serotonin Disturbances in the levels of the neurotransmitter serotonin appear to be a characteristic of individuals with eating disorders. Kaye 2005 found a reduction in the levels of the serotonin metabolite 5-HIAA in people with eating disorders. This suggests that brain serotonin pathways are underactive
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Outline and evaluate biological explanations of obesity Various explanations can be provided for the reasons of obesity‚ from biological explanations‚ to neurological and evolutionary theories. Even socio-economic reasons could give insight into why some people have a higher likeliness of obesity Evolutionarily‚ the thrifty gene hypothesis provides insight as to why many suffer from obesity‚ as it suggests that our current genes are no longer suited to our new environment. Modern day society is
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1a. Outline the clinical characteristics of OCD. [4] The DSM-4 states that for one to be diagnosed with OCD‚ one must have either obsessions‚ compulsions or both. To be diagnosed with having obsessions‚ the patient must have recurring‚ persistent intrusive thoughts that cause marked distress or anxiety‚ and must have insight into the fact that the thoughts are a product of their own mind. To have compulsions‚ the patient must feel the need to repeat physical behaviours‚ which occur as a response
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Describe and evaluate biological explanations of depression There are many different explanations for depression‚ including biological. Links have been found between biochemical‚ genetics and hormonal imbalances with depressed people. In the biochemical explanation‚ a link has been found between neurotransmitter imbalances and depression. Serotonin is associated with pleasure and mood. Mann et al found impaired transmission of serotonin in people with depression. However Julian disagrees with
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