Fonteyne Riet, Baeyens Frank
Department of Psychology, University of Leuven, Belgium.
Exp Psychol. 2011;58(4):278-86. doi: 10.1027/1618-3169/a000094.
Using a conditioned suppression preparation, we investigated extinction and aba-, abc-, and aab-renewal of Pavlovian modulation in human sequential Feature Positive (FP) discrimination learning, X → A+/A-. Extinction treatment was administered in the acquisition context a (aaa- and aab-groups) or in a new context b (aba- and abc-groups) and comprised X → A- extinction trials. Discriminative X → A/A responding was lost in all groups when tested in the extinction context. In the aba-group, the discriminative X → A/A responding totally recovered when retested in the acquisition context a. For the aaa-, the aab-, and the abc-group, discriminative X → A/A responding did not reappear when tested for renewal in, respectively, contexts a, b, and c. The demonstration of aba-renewal of extinguished modulation, but not abc- and aab-renewal, suggests that extinction in a context different from the acquisition context and a return to the original acquisition context might both be critical for renewal of Pavlovian modulation in human FP-discrimination learning.
我们采用条件性抑制实验范式，研究了人类序列特征阳性（FP）辨别学习（X→A+/A-）中经典条件调制的消退以及aba-、abc-和aab-恢复现象。消退处理在习得情境a（aaa-组和aab-组）或新情境b（aba-组和abc-组）中进行，包括X→A-消退试验。当在消退情境中进行测试时，所有组中辨别性的X→A/A反应均消失。在aba-组中，当在习得情境a中重新测试时，辨别性的X→A/A反应完全恢复。对于aaa-组、aab-组和abc-组，当分别在情境a、b和c中进行恢复测试时，辨别性的X→A/A反应均未再次出现。消退调制的aba-恢复而非abc-和aab-恢复的表现表明，在与习得情境不同的情境中进行消退以及回到原始习得情境，可能对人类FP辨别学习中经典条件调制的恢复都至关重要。
