Biological explanation of phobias Genetic factors One biological explanation for the cause of phobic disorders suggests that we can relate it back to our genetics. This theory values the ‘nature’ side in the nature vs nurture debate. This theory uses twin studies to try and separate genetic factors from environmental factors in order to draw a causal conclusion between genetics and phobias. If a closer concordance rate was found between MZ and DZ twins we could suggest a genetic inheritance
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According to the biological approach the mental disorder Schizophrenia will have an underlying physical cause such as imbalance of hormones‚ brain damage and infection. There is strong evidence that biological factors influence the presence of Schizophrenia. There are certain chemical abnormalities that can be observed in people suffering from schizophrenia. Post-mortems on schizophrenics have shown unusually high levels of dopamine. Dopamine is a brain chemical that increases the sensitivity of
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words: schiz meaning split’ and phren meaning mind’. DSM IV (1994) estimate that the occurrence rate of schizophrenia ranges from 0.2%-2.0% worldwide. There are two main explanations of schizophrenia: the biological explanations and the psychological explanations. In this essay I will critically consider the biological explanations. These include genetics‚ neurochemistry‚ brain structure and evolution. Genetic factors of schizophrenia can be explained using studies on twins and studies on family
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The biological approach asserts that something in our biology is the fundamental cause of dysfunctional behaviour which could be a genetic cause or a malfunction of brain structures. Although it is seen as the most common explanation for schizophrenia due to the use of drug therapy‚ it would be deterministic and reductionist to explain schizophrenia only with the biological approach since there are other numerous factors such as the ones related to the cognitive explanation or other environmental
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Cesare Lombroso’s biological explanations: How relevant are they to modern criminal psychology? Cesare Lombroso is thought of by many as the founding father of criminal psychology (Kushner 2011; Assael & Avanzini‚ 1997; Granieri and Fazio‚ 2011). When Lombroso was alive his theories on the biological explanations of crime were seen as cutting edge (Kurella‚ 1911) but after death his theories were ridiculed and denigrated (Gatti & Verde‚ 2012) with Abraham Verghese referring to them as “pseudoscience
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Describe and evaluate the biological explanation of gender development. Give evidence in your answer. (10 marks) The biological approach states that human beings have evolved so that males and females possess different chromosomes that trigger the production of different levels of certain hormones. It is these hormonal differences between the sexes that lead to differences in behaviour. This allows for males and females to perform different roles in reproduction thus ensuring the survival of
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Psychology Essay The biological approach suggests that AN is due a physical cause‚ suggesting it could be due to something within the body or brain; such as hypothalamus dysfunction or an imbalance of neurotransmitters. The hypothalamus dysfunction theory would suggest that animals have a “set weight” which is correct for their body‚ if this weight should increase or decrease then the body should make adjustments to regulate food intake to their “set weight”. The hypothalamus is thought to have
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There are two main biological theories which explain the assumed causes of schizophrenia: Genetic and Dopamine Hypothesis. Research by Mikaywa et al has found that there must be a genetic explanation of schizophrenia due to the fact that concordance rates for environmental causes are not 100%. Also Mikaywa noticed that schizophrenia runs in the family‚ meaning there must be something other than environmental causes‚ causing the disorder. What Mikaywa studied was DNA from human families who were
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and contrast biological and psychological explanations of crime with sociological explanations of criminality. Theories are useful tools‚ which suggest the way things are and not the way things ought to be‚ we can use them to help us to understand the world around us. In terms of criminal and deviant behaviour the theories proposed in this subject area set out to try and give reason as to why an individual commits criminal or delinquent acts. In this essay I will be using biological‚ psychological
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Describe and evaluate one or more biological explanations of schizophrenia Research has shown that schizophrenia is heredity and can runs in families. This suggests that genes play a significant role. The closer the genetic relationship the more likely the people are to share the disorder. Evidence from family studies by Gottesman showed that when bothparent are schizophrenic then there is a 46% chance of the child getting it‚ however‚ if only one parent had it‚ it dropped to 17%. This suggests
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