ABNORMAL BEHAVIOR
SCHIZOPHRENIA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Negative symptoms
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Positive symptoms
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Either A or B
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None of the above
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Detailed explanation-1: -Dopamine is an inhibitory neurotransmitter involved in the pathology of schizophrenia. The revised dopamine hypothesis states that dopamine abnormalities in the mesolimbic and prefrontal brain regions exist in schizophrenia.
Detailed explanation-2: -Hyperdopaminergia: This refers to higher than usual levels of dopamine in the subcortex (central areas of the brain). This is linked with positive symptoms such as hallucinations. There may be a higher number of dopamine receptors, causing over-activity of dopamine, causing sensory hallucinations.
Detailed explanation-3: -1.The Mesolimbic Pathway Hyperactivity of dopamine in the mesolimbic pathway mediates positive psychotic symptoms. The pathway may also mediate aggression. Antagonism of D2 receptors in the mesolimbic pathway treats positive psychotic symptoms.