A star graded essay plans on questions surrounding schizophrenia. primarily useful in paper 3 psychology but also applicable to other papers. Each essay plan is written in an easy to understand table format which is clearly labelled. The tables are used to ensure that all criteria is met in the exa...
Evaluate the biological explanations of schizophrenia 10 marks
Dopamine A03
Para Point Evidence Explain Link
For The use of 1. Griffith – gave 1. Supports the theory This corroborates
dopamine is dextroamphetamines that too much activity the use of the
considered to to non sz and found of dopamine leads to dopamine
be effective that they developed the development of hypothesis and
due to support positive symptoms of positive symptoms of would suggest that
evidence from sz. sz the use of biological
… 2. Phenothiazine – 2. Shows that applying explanations in
works by decreasing the hypothesis in understanding the
the activity of order to reduce origins of
dopamine by binding dopamine leads to a schizophrenia is
to d2 receptors, eld to reduction in positive considered to be
a 75% reduction in symptoms. useful.
positive symptoms.
Against The use of 1. Clinical effectiveness 1. suggests that the use This would suggest
dopamine is is proven to only be of dopamine that the use of
considered to 65-85 % effective explanation cannot be biological
be ineffective 2. Difficulty with applied explanations are
when measuring dopamine nomothetically to all considered to be
understanding levels – not an cases of limited and may
the orignins of accurate system so schizophrenia. reduce the
sz due to the cannot be used to 2. Cannot be used to likelihood of using
lack of … test dopamine levels state that high activity them when
in individuals who of dopamine leads to explaining the
have sz positive symptoms causes of sz.
this reduces the
credibility of the
explanation
Application The dopamine Cole found that the use of This supports the use of the This increases the
hypothesis has conventional drugs is 75% dopamine hypothesis as likliood of using the
been applied to effective at reducing the provides reserch that would dopamine
drug therapy experience of positive suggest that dopamine causes hypothesis due to
symptoms of schizophrenia. its already
successful
application to
psychology.
Alternative Is considered Due to the fact that it has However, it is deemed to be This would suggest
to be the most been proven to be reductionistic as that the use of the
influential effectiveness through the oversimplifies the causes of dopamine
explanaition in implementation of drug schizophrenia which is hypothesis should
terms of therapy. considered to be a complex be used in
understanding condition. conjunction with
the origins of another explanation
schizophrenia such as cognitive
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