The Effects of Para-Chlorophenylalanine on a Conditioned Emotional Response in Rats

The initial intent of this study was to investigate p-CPA\u27s actions on conditioned anxiety (CER) in rats in order to ascertain whether the derived effects were qualitatively similar to those previously reported for conflict behavior. Specifically, the goals of this study were to determine if p-CPA would reinstate lever-pressing behavior that had been suppressed by a series of tone-shock pairings. If a change in behavior did occur, would the reintroduction of serotonin, through the use of 5-HTP, return the behavior to pre-drug control levels