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Enkephalin hydrolysis in plasma is highly correlated with escape performance in the rat
1Department of Psychology, University of California, Berkeley 94720.
Behavioral Neuroscience
|June 1, 1988
Abstract:
A very high correlation was found in rats between latency to escape on the first trial of an active avoidance task and the rate at which [leu]enkephalin is hydrolyzed in plasma. In addition, the rate of [leu]enkephalin hydrolysis is significantly altered following the first training trial. The results suggest that a regulatory enzyme system exists for [leu]enkephalin in plasma and that this system may be important for modulating behavior.