Abstract
The effects of psychological stress on serotonin (5-HT) release were studied in the basolateral amygdaloid nucleus and the prefrontal cortex in conscious rats with in vivo microdialysis. Psychological stress, wherein emotional factors were predominantly involved, significantly increased extracellular 5-HT levels in these two areas. These findings suggest that activation of serotonergic neurons in these brain regions is involved in the emotional and/or cognitive states in animals.
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