Attempts to establish high levels of wheel-turning avoidance in rats using the traditional avoidance paradigm have met with indifferent success. In this study, 3 new paradigms, each involving gradual transitions from escape to avoidance, were evaluated under both free-responding and discrete-trial conditions. All 3 programs tended to produce more frequent avoidances than the conventional one and the discrete-trial method proved superior to the free-response arrangement.
References
1.
AndersonN. H.NakamuraC. Y.Avoidance decrement in avoidance conditioning. Journal of Comparative and Physiological Psychology, 1964, 57, 196–204.
2.
BrushF. R.The effects of intertrial interval on avoidance learning in the rat. Journal of Comparative and Physiological Psychology, 1962, 55, 888–892.
3.
D'AmatoM. R.KellerD.BiedermanG.Discriminated avoidance learning as a function of parameters of discontinuous shock. Journal of Experimental Psychology, 1965, 70, 543–548.
4.
D'AmatoM. R.KellerD.DiCaraL.Facilitation of discriminated avoidance learning by discontinuous shock. Journal of Comparative and Physiological Psychology, 1964, 58, 344–349.
5.
FitzgeraldR. D.BrownJ. S.Variables affecting avoidance conditioning in free-responding and discrete-trial situations. Psychological Reports, 1965, 17, 835–843.
6.
KaminL. J.The effects of termination of the CS and avoidance of the US on avoidance learning. Journal of Comparative and Physiological Psychology, 1956, 49, 420–424.
