medium · MCAT bio-biochem
A researcher is studying dopamine signaling in patients with schizophrenia.
Which of the following is the most accurate doctrinal description of the neurochemical findings in this disorder?
- Dopamine dysregulation, often involving hyperactivity in the mesolimbic pathway.
- An absolute excess of dopamine throughout the entire central nervous system.
- The degeneration of dopaminergic neurons in the substantia nigra.
- A global deficiency of dopamine that causes negative symptoms like flat affect.
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