REINSTATEMENT OF FEAR TO AN EXTINGUISHED CONDITIONED STIMULUS
REINSTATEMENT OF FEAR TO AN EXTINGUISHED CONDITIONED STIMULUS
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DOI:
10.1037/0097-7403.1.1.88
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发表时间:
1975-01-01
期刊:
影响因子:
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通讯作者:
HETH, CD
中科院分区:
文献类型:
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作者:
RESCORLA, RA;HETH, CD
Conducted 4 experiments with a total of 120 male Sprague-Dawley rats, the results of which demonstrate the ability of an unconditioned stimulus (UCS) presentation following extinction to partially reinstate the conditioned response. These experiments are interpreted in terms of the strengthening of an extinction-reduced UCS representation. The 1st 2 experiments offer alternative interpretations in terms of sensitization, reinstating the stimulus conditions of acquisition, conditioning of background cues, and stimulus generalization. Exp III suggests that reinstatement is possible with a UCS qualitatively different from that used in conditioning. Exp IV explored an alternative extinction procedure which preserved the conditioned stimulus-unconditioned stimulus association while encouraging modification of the UCS representation. Results are discussed both in terms of related empirical phenomena, such as spontaneous recovery and sensory preconditioning, and in relation to the general role of the UCS representation in conditioning.(17 ref)(PsycINFO Database Record (c) 2016 APA, all rights reserved)