Biological explanations of schizophrenia essay plan

Biological explanations of schizophrenia essay plan

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biological explanations of schizophrenia essay plan

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Below is a free excerpt of "Biological Explanations - Essay Plan" from Anti Essays, your source for free research papers, schixophrenia, and term paper examples. You are commenting using your Twitter account.

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This essay will cover both genetic and neural explanations of schizophrenia. Josephcalculated that the pooled data for all Sz twin studies carried plqn prior to

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Marked Essay - Discuss biological explanations of schizophrenia.

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Biological Explanations of Schizophrenia- Essay Plan

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Schizophrenics seem to have abnormally high levels of D2 receptors on receiving neurons which results in more dopamine binding and so more neurons firing.

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Discuss Biological Explanations of Schizophrenia Essay

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Amphetamines Antipsychotic drugs Parkinson's disease. Problems with this explanation There are problems of the dopamine hypothesis.

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Essay Plan on Biological explanations for Schizophrenia

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Some psychologists believe that the increase in the size of these ventricles is what leads to the schizophrenic symptoms.

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Using brain imaging techniques, such as P.

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Below is a free excerpt of "Biological Explanations - Essay Plan" from Anti Essays, your source for free research papers, essays, and term paper examples. Amphetamines Antipsychotic drugs Parkinson's disease.

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Twin research has consistently shown that identical twins have a greater risk of developing schizophrenia, if their biologial has the disorder, than non-identical twins. Fill in your details below or click an icon to log in:

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Biological Explanations - Essay Plan Submitted by:

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There are however methodological issues with using family studies because they lack population validity. Family studies have established that Sz, is more common among biological relatives of a person with Sz, and that the closer the degree of genetic relatedness, the greater the risk.

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This model says the excess sensitivity to dopamine results in the brain causes the symptoms of schizophrenia. Josephcalculated that the pooled data for all Sz twin studies carried out prior to

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This could be because there is too much of the hormone dopamine in the brain, or conversely because there is an abnormally high number of schizopphrenia receptors in the brain.

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One of these explanations is the biological model.

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Also, some psychologists argue that the high concordance rates found could be caused by being brought up in a family with a schizophrenic, so the child mimics the schizophrenic behaviour, rather than by genetics. Further evidence to support the genetic explanation comes from twin studies.

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Twin studies- Joseph calculated concordance rates of

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Also, some psychologists argue that the high concordance rates found could be caused by being brought up in a family with a schizophrenic, so the child mimics the schizophrenic behaviour, rather than by genetics. Taking this argument, twin studies like family studies also fail to distinguish between nature and nurture.

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This model explains schizophrenia through biological faults, for example viral infections and brain abnormalities. For example, contracting diseases such as Flu or Syphilis in the womb may relate to developing schizophrenia in later life.

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This model says the excess sensitivity to dopamine results in the brain causes the symptoms of schizophrenia.

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It is not the amount of dopamine, but the sensitivity and density of dopamine receptors.

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SimranChana1 on May 31, Category: You are commenting using your Facebook account. Brain dysfunction Using brain imaging techniques, such as P. Tienari et al used Finnish adoptees whose biological mothers had been diagnosed with schizophrenia. For example, contracting diseases such as Flu or Syphilis in the womb may relate to developing schizophrenia in later life Evaluation of Viral Theory Torrey found that more schizophrenics are born in the winter, when it is cold and exposure to viruses is higher, than in other months.

One of these explanations is the biological model. Tienari et al - looked at adoptees whose biological mothers had been diagnosed with Sz.

University of California Type of paper: An assumption underlying all twin studies is that the environments of MZ twins and DZ twins are the same.

Although other studies have shown other rates, all twin studies have shown a significantly higher rate among MZ than DZ twins, therefore suggesting that research into this area is reliable, making the genetic explanation academically credible to explain schizophrenia.

Taking this argument, twin studies like family studies also fail to distinguish between nature and nurture. Twin research has consistently shown that identical twins have a greater risk of developing schizophrenia, if their twin has the disorder, than non-identical twins. Adoption studies- Tienari- adoptees- bio mothers diagnosed as schizophrenic found that 6. For example, contracting diseases such as Flu or Syphilis in the womb may relate to developing schizophrenia in later life.

It is not the amount of dopamine, but the sensitivity and density of dopamine receptors. Biological Explanations - Essay Plan. Wednesday, 7 May Essay plan: Overall, all the research into the genetic explanation suggests a genetic element to schizophrenia which makes research into this area reliable.

The dopamine hypothesis says that schizophrenia is caused by an increased reaction to dopamine in the brain. Family studies Twin studies Adoption studies. This research shows that there is a definite correlation between genetics and the risk of developing schizophrenia. Skip to content Home About. Overall, Tsuang et al estimate that if stringent criteria are used, a first degree relative of schizophrenia has times higher risk of it developing than those with no relatives.

In general, it is reasonable to assume that if identical twins MZ have a higher concordance rate than fraternal DZ twins, then this indicates a degree of inheritability. Research by Meyer-Lindenberg found that reduced activity of the prefrontal cortex is linked to dopamine abnormalities.

An assumption of adoption studies is that adoptees are not 'selectively placed', i. This essay will cover both genetic and neural explanations of schizophrenia. Biological Explanations - Essay Plan Submitted by: Some psychologists say that schizophrenia can be passed down generations, meaning that some people inherit the disorder from their parents.

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