TRANSFER OF CONTROL IN AMBIGUOUS DISCRIMINATIONS
TRANSFER OF CONTROL IN AMBIGUOUS DISCRIMINATIONS
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DOI：
10.1037/0097-7403.17.3.231
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发表时间：
1991-07-01
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影响因子：
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通讯作者：
HOLLAND, PC
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文献类型：
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作者：
HOLLAND, PC
采用离散试验操作性重复-按压程序考察了大鼠模糊辨别操作的获得和迁移。 大鼠通过获得对X特征的积极和消极的场合设置功能来学习系列模糊辨别（X --> A+，A-; B+，X --> B-）。 相互转移发生在来自系列歧义、特征阳性（Y --> C+，C-）和特征阴性（Y --> C-，C+）辨别的线索之间，但这种转移并不延伸到没有在这些系列辨别中训练的线索。 模棱两可的功能的积极场合设置的权力不受非强化的介绍，该功能单独和posttraining counterconditioning没有消除功能的能力，作为一个消极的场合设置。 同时进行的模糊判别（XA+，A-; X B-，B+）不能获得时机设置，显然，这是用一种模糊策略解决的。
Rats' acquisition and transfer of performance in ambiguous discriminations was examined using discrete-trial operant lever-press procedures. Rats learned serial ambiguous discriminations (X --> A+, A-; B+, X --> B-) by acquiring both positive and negative occasion setting functions to the X feature. Mutual transfer occurred among cues from serial ambiguous, feature positive (Y --> C+, C-), and feature negative (Y --> C-, C+) discriminations, but that transfer did not extend to cues not trained within one of those serial discriminations. The ambiguous feature's positive occasion setting powers were unaffected by nonreinforced presentation of that feature alone, and posttraining counterconditioning did not eliminate the feature's ability to serve as a negative occasion setter. Occasion setting was not acquired with simultaneous ambiguous discriminations (XA+, A-; XB-, B+), which apparently were solved with a configural strategy.