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Which Research Finding Does Not Confirm a Role for Serotonin

Question 4

Multiple Choice

Which research finding does not confirm a role for serotonin dysfunction in mood disorders?


A) Decreased numbers of postsynaptic 5-HT2 receptors are found in depressed patients.
B) Low 5-HIAA turnover is found in depressed individuals.
C) Rapid tryptophan depletion in treated depressed patients causes a relapse in symptoms.
D) Challenge studies indicate that the 5-HT receptors in depressed individuals are less sensitive.

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