Psychology / Unit 12 Psych 1371 short lesson, about 20 seconds
The Dopamine Hypothesis
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The idea
The dopamine hypothesis proposes that schizophrenia involves excess dopamine activity in specific brain pathways.
In practice
Drugs blocking dopamine receptors reduce positive symptoms, and drugs raising dopamine can produce psychotic symptoms.
Where people slip
The hypothesis explains positive symptoms better than negative ones and is now considered incomplete.
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