Examine How Three of the Major Psychological Perspectives Explain Two Mental Health Conditions.

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Examine how three of the major psychological perspectives explain two mental health conditions. (1500) There are many different perspectives used by psychologists to explain a mental illness. Depression and schizophrenia will be discussed in this essay in relation to a biological, cognitive and behaviourist perspective. This essay will provide evidence for each of the models discussed. It will also include an evaluation of their explanation of the theories for the causes of depression and schizophrenia. Depression is a complex mood disorder which is sufficient enough to interfere with normal functioning. Schizophrenia is a chronic (long lasting) brain disorder which affects Intellectual functioning. Depression is closely linked to schizophrenia as the sufferer recognises what is meant by having the illness. This essay will examine the causes of depression and schizophrenia and analyse its findings. There are three different biological explanations for depression and schizophrenia; genetic inheritance, biochemical imbalance and neuron-anatomical abnormalities. Research indicates that genes may influence behaviour by inheriting imbalances of bio chemicals in the brain. This could transfer naturally occurring chemicals into toxic ones. These toxic chemicals are suggested to be responsible for the characteristics of depression and schizophrenia (Gross, Mcliveen 1996).The bio chemicals that are often out of balance are serotonin, nor-epinephrine and dopamine. Bio chemical theories of depression began to surface in the 1950’s, when excessive amounts of dopamine were associated with psychological disorders. Studies have shown that it is clear from evidence presented from the study of identical twins raised apart; that if one identical twin develops schizophrenia, then the other twin has a one in two chance of developing it. The non identical twin raised in the same
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