CONTEXTUAL CONTROL OF EMERGENT EQUIVALENCE-RELATIONS
CONTEXTUAL CONTROL OF EMERGENT EQUIVALENCE-RELATIONS
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DOI：
10.1901/jeab.1989.51-29
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发表时间：
1989-01-01
影响因子：
2.7
通讯作者：
DEROSE, T
中科院分区：
文献类型：
--
作者：
BUSH, KM;SIDMAN, M;DEROSE, T
实验1中的3名大学生和实验2中的1名学生在语气的语境控制下学习了视觉条件辨别；给定样本刺激正确的视觉比较刺激取决于是否存在高音调或低音调。然后，实验 1 中的两名受试者展示了两组情境控制的三人类别的等效刺激的出现，实验 2 中的受试者则展示了情境控制的四人类别的出现；每个刺激的类别成员随着音调的变化而变化。班级成员身份是通过受试者对从未直接教授过的新条件歧视的表现来证明的。在实验2中，程序的目的是确保音调发挥二阶条件控制作用，而不是简单地与每种视觉刺激形成复合物，但受试者对任务的口头描述表明，这一意图可能不会成功。因此，无法确定音调是否作为独立的二阶条件刺激或简单地作为听觉-视觉刺激复合物的共同元素来发挥上下文控制。
Three college students in Experiment 1 and 1 student in Experiment 2 learned visual conditional discriminations under contextual control by tones; the visual comparison stimulus that was correct with a given sample stimulus depended on whether a high tone or a low tone was present. Two of the subjects in Experiment 1 then demonstrated the emergence of two sets of contextually controlled three-member classes of equivalent stimuli, and the subject in Experiment 2 showed the emergence of contextually controlled four-member classes; the class membership of each stimulus varied as a function of the tones. Class membership was demonstrated by the subjects'' performance of new conditional discriminations that they had never been taught directly. In Experiment 2, the procedures were intended to ensure that the tones exerted second-order conditional control and did not simply form compounds with each of the visual stimuli, but the subject''s verbal description of the tasks suggested that this intention might not have been successful. It could not be ascertained, therefore, whether the tones exerted contexual control as independent second-order conditional stimuli or simply as common elements of auditory-visual stimulus compounds.