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Which piece of evidence, if found, would weaken the dopamine hypothesis the most?
A) a study showing that when people are given excess doses of L-dopa, they subsequently develop symptoms of schizophrenia
B) a study showing that other drugs that increase dopamine activity, such as amphetamines, also produce symptoms of schizophrenia
C) a study showing that drugs that bind to receptors other than dopamine reduce or eliminate the symptoms of schizophrenia
D) a study showing that phenothiazines are more effective than second-generation antipsychotic drugs in reducing the symptoms of schizophrenia
Dopamine Hypothesis
A theory suggesting that the imbalance of dopamine levels in the brain plays a significant role in the development of schizophrenia and other psychotic disorders.
L-dopa
A chemical precursor to dopamine, used as a medication primarily in the treatment of Parkinson's disease to increase dopamine levels in the brain and alleviate symptoms.
Phenothiazines
A group of antihistamine drugs that became the first group of effective antipsychotic medications.
- Digest the importance and trials of the dopamine hypothesis in the discourse on schizophrenia.
- Recognize the support for other hypotheses alternative to the dopamine theory, including the involvement of various neurotransmitters.
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Learning Objectives
- Digest the importance and trials of the dopamine hypothesis in the discourse on schizophrenia.
- Recognize the support for other hypotheses alternative to the dopamine theory, including the involvement of various neurotransmitters.
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