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Discuss the Evidence That Implicates a Biological Dysfunction as a Cause for Schizophrenia Schizophrenia is a mental disorder, which is characterised by a number of both positive and negative symptoms. Positive symptoms are behaviours which are present although should be absent. Examples of these are thought disorders resulting in difficulty in arranging thoughts logically, jumping from one topic of conversation to another and speaking random words. Other positive symptoms of schizophrenia include delusions whereby the effected person may feel that people are plotting against them and trying to kill them as well as hallucinations whereby the schizophrenic person hears voices in their head telling them to do things. Negative symptoms are also shown by people suffering from schizophrenia and are the absence of behaviours, which are normally present. Examples of these symptoms are a flattened emotional response, a poverty of speech and social withdrawal. It has been suggested that there are...

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