Describe and evaluate two biological explanations of schizophrenia. (25 marks) 1. The dopamine hypothesis proposes that…….. This was supported by ……. 3. The role of the dopamine in the limbic system has been the main area of study in more of recent years. Dopamine is a major neurotransmitter in the mesolimbic pathway. …… Dopamine is also a major neurotransmitter in the mesocortical pathway…… hypothesis explanations Dopamine marks) 6. In some individuals with schizophrenia, the ventricles seem to be larger. Weinberger et al (10 (1979) used CAT scans to …. biological AO1 schizophrenia. 8. Cortical atrophy ……. Antonio Vita et al (1988) used CAT scans to assess ………. They found two that abnormalities Describe Structural 2. Dopamine imbalances may be caused by genes … Gottesman et al (1991) looked at ….. which suggests that ……. 4. However it has been found in research that there were over 108 genetic loci associated with schizophrenia, showing that … 5. Dopamine is not the only neurotransmitter implicated in schizophrenia. Newer atypical hypothesis antipsychotics block the D2 receptor and also the serotonin …. This suggests that ….. schziophrenia. Dopamine of marks) (10 A03 7. Robert McCarley and colleagues (1999) claim that the presence of enlarged ventricles in explanations people with schizophrenia is the most reliable finding in research that uses brain scans. marks) McCarley at al suggests that factors such as …… this suggests that … (5 biological 9.A cause or effect of schizophrenia. Lyon et al (1981) reported that …. This suggests that …. Ao2 two 10 Structural abnormalities are not only linked with schizophrenia abnormalities Evaluate Structural Biological Conclusion explanations
Describe and evaluate two biological explanations of schizophrenia. (25 marks) AO1 (10 marks) Describe two biological explanations of schizophrenia. 1. The dopamine hypothesis proposes that…….. This was supported by ……. 3. The role of the dopamine in the limbic system has been the main area of study in more recent years. Dopamine is a major neurotransmitter in the mesolimbic pathway. …… Dopamine is also a major neurotransmitter in the mesocortical pathway…… Dopamine hypothesis 6. In some individuals with schizophrenia, the ventricles seem to be larger. Weinberger et al (1979) used CAT scans to …. 8. Cortical atrophy ……. Antonio Vita et al (1988) used CAT scans to assess ………. They found that Structural abnormalities Ao2 (5 marks) A03 (10 marks) Evaluate two biological explanations of schziophrenia. 2. Dopamine imbalances may be caused by genes … Gottesman et al (1991) looked at ….. which suggests that ……. 4. However it has been found in research that there were over 108 genetic loci associated with schizophrenia, showing that … 5. Dopamine is not the only neurotransmitter implicated in schizophrenia. Newer atypical antipsychotics block the D2 receptor and also the serotonin …. This suggests that ….. Dopamine hypothesis 7. Robert McCarley and colleagues (1999) claim that the presence of enlarged ventricles in people with schizophrenia is the most reliable finding in research that uses brain scans. McCarley at al suggests that factors such as …… this suggests that … 9.A cause or effect of schizophrenia. Lyon et al (1981) reported that …. This suggests that …. 10 Structural abnormalities are not only linked with schizophrenia Structural abnormalities Conclusion Biological explanations