The effect of electroconvulsive shock on fixated behavior in the rat: IV. The prevention of fixations with ECS.

The Effects of Prefrustration Discrimination Trials on Problem-Solving Behavior

“…Of the 37 Ss solving this problem, 36 (69 per cent of the total N of 52) 3 Unpublished data by Feldman indicate that Ss more readily solve the bright symbol than the dark one. solved it within the number of trials (ZOO) usually allowed by Maier for its solution.…”

Antecedents to behavior fixations.

“…Of the techniques thus far used, two are clearly superior for fixation prevention. As mentioned earlier, a large proportion (73%) of rats that experience the insoluble problem under the influence of chlordiazepoxide (CDP) were able to solve the ensuing soluble problem (Feldman, 1962), and Feldman and Neet (1960) showed that a daily ECS given immediately after the last insoluble problem trial led to 78% solutions during the ensuing soluble problem. This result was confirmed by , who further showed that delay of as little as 5 minutes of applying the ECS significantly reduced the effect.…”