DELAYED EXTINCTION AND SPONTANEOUS-RECOVERY FOLLOWING SPACED AND MASSED ACQUISITION OF THE EYELID CR
DELAYED EXTINCTION AND SPONTANEOUS-RECOVERY FOLLOWING SPACED AND MASSED ACQUISITION OF THE EYELID CR
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DOI：
10.1080/00221309.1961.9920480
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发表时间：
1961-01-01
影响因子：
2.5
通讯作者：
GRANT, DA
中科院分区：
文献类型：
--
作者：
BEEMAN, EY;GRANT, DA
Two major theoretical approaches permit prediction of the results of the experiment. According to the Hullian theory (14, 15) a rest pause before extinction ought to permit dissipation of accumulated Ia so that delayed extinction should start from a higher level than immediate extinction. Spence’s drive theory (24, 25)’although perhaps not properly applicable to extinction, seems to lead to an expectation of reduction of UCS induced drive (D) during the delay period and hence some reduction in effective reaction potential, leading to a prediction of decreased responding during extinction following a delay-a result counter to that predicted from dissipation of IR alone. Estes’ concept of random stimulus fluctuation (3, 4, 5, 6), however, would lead to the unequivocal prediction of reduction in responsiveness (spontaneous regression) during extinction preceded by a delay, owing to escape of conditioned stimulus elements from S, the available stimulus set, into S’, the subset of unavailable stimulus elements, during the interval before extinction. Furthermore, with a fixed number of acquisition and extinction trials, Estes (5) would presumably predict a greater regression effect following massed acquisition and greater spontaneous recovery following spaced acquisition and extinction and also greater spontaneous recovery following spontaneous regression at the first extinction (4). Earlier experiments have rather uniformly shown higher acquisition curves with spaced as opposed to massed training trials (10, 16, 23, 26). Sponta-
