Schizophrenia- One Biological Explanation

Schizophrenia depends in part on catching factors, the musical comedy theme that schizophrenia tends to run in families. Family studies have been carried divulge and Kendler (1985) suggested first-year degree relatives atomic number 18 eighteen times more than(prenominal) believably to develop schizophrenia if a family member has it. Kety (1962) began a huge study of Danish families where a first degree had a diagnosis of schizophrenia such as the mother. 207 children with insane mothers were instal and matched a control separate of 104 children with non- insane mothers. 16% of the schizophrenic aggroup demonstrable the illness, compared to only 2% of non-schizophrenic group. These percentages are significant as they imply there is a genetic link. To attain more support for the biological explanation, researchers looked at twin studies, to establish the set that the other twin is also schizophrenic. Gottesman and Schields (1982) studied development of monozygotic twins where one had developed schizophrenia. They plant a 58% capital of New Hampshire rate. Support was given by Cardno (1999) who appoint that the concordance rate is about 40% if you have a monozygotic twin, but only 5% if you have a dizygous twin with schizophrenia.

Tienari (1987) looked at adoptive families in Finland, and matched 112 espouse children who had a schizophrenic mother, with 135 who did not have a schizophrenic mother. All of the children had been adopted before the age of 4. He found that there was a large difference in the incidence of schizophrenia in these two groups when they were adults: 7% of those with schizophrenic mothers had developed the illness, compare d with only 1.5% of those without schizophre! nic mothers. However, such biological explanations are field of battle to a number of criticisms. While Kety et als findings step up to support the importance of genetic factors in schizophrenia, it is worth noting that these statistics were self-possessed from a time-span of over 70 years and these earlier interpretations of symptoms were...If you requirement to get a rise essay, order it on our website: OrderEssay.net

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