Abstract The secondary conditioned response has been studied in rats in an experimental avoidance situation. The activity of seventeen drugs has been tested upon the secondary conditioned response developed on a stable basis after an appropriate period of training. Chlorpromazine, promazine, reserpine and morphine block the secondary avoidance conditioned response as well as the usual avoidance...
Abstract The effects of mescaline on spontaneous activity of mice placed in special cages have been studied. The typical response (stereotyped response) has been recorded and assessed in terms of percentage of animals showing the effect. Among drugs affecting the response chloropromazine shows the highest specificity. Promazine, hexobarbitone and pentobarbitone also show a definite but minor...