The avoidance behavior of rats was observed under the conditions of a jumping or a running apparatus paired with a 5- or a 10-sec. CS interval. It was determined that the latency of S's response late in acquisition was dependent on the duration of CS interval but independent of the type of apparatus. Trials to criterion of acquisition indicated that Ss in the running apparatus required more trials than those in the jumping apparatus. After 3 days, extinction trials to criterion indicated that more trials to criterion were required for Ss in the running apparatus and having the 10-sec. CS interval.
Get full access to this article
View all access options for this article.
References
1.
BittermanM. E.The CS-US interval in classical and avoidance conditioning. In ProkasyW. (Ed.), Classical conditioning. New York: Appleton-Century-Crofts, 1965. Pp. 15–16.
2.
CampbellB. A.SmithN. F.MisaninJ. R.Effects of punishment on extinction of avoidance behavior: Avoidance-avoidance conflict or vicious circle behavior. J. comp. physiol. Psychol., 1966, 62, 495–498.
3.
D'AmatoM. R.FazzaroJ.Discriminated lever-press avoidance learning as a function of type and intensity of shock. J. comp. physiol. Psychol., 1966, 61, 313–315.
4.
KimbleG. A.Shock intensity and avoidance learning. J. comp. physiol. Psychol., 1955, 48, 281–284.
5.
PageH. A.HallJ. F.Experimental extinction as a function of the prevention of a response. J. comp. physiol. Psychol., 1953, 46, 33–34.
6.
PlotnikoffN.Magnesium pemoline: Enhancement of learning and memory of a conditioned avoidance response. Science, 1966, 151, 703–704.
7.
SiegelS.Nonparametric statistics. New York: McGraw-Hill, 1956.
8.
WinerB. J.Statistical principles in experimental design. New York: McGraw-Hill, 1962.
