Ungör Metin, Lachnit Harald
Faculty of Psychology, Philipps-Universitat Marburg, Marburg, Germany.
J Exp Psychol Anim Behav Process. 2006 Oct;32(4):441-53. doi: 10.1037/0097-7403.32.4.441.
In 3 human predictive learning experiments, the authors examined contextual control of responding in discrimination reversal learning. In Phase 1, a discrimination between 2 stimuli (A+, B-) was trained in Context 1. During Phase 2, participants received discrimination reversal training (A-, B+) in Context 2. Testing occurred in Context 1 and Context 2 (Experiments 1A and 1B) or in Context 1 and Context 3 (Experiment 2). During the test phase, performance in Context 1 and Context 2 reflected the contingencies trained during Phase 1 and Phase 2, respectively. When testing occurred in Context 3, there was no discriminative responding between A and B. In addition, the experiments demonstrated that discriminating stimuli with a consistent reinforcement history were also affected by contextual manipulations. Results indicate that each training context acquires the ability to control performance. Unique-cue and configural approaches account for a major part of the results.
在3项人类预测性学习实验中，作者研究了辨别性逆转学习中反应的情境控制。在第1阶段，在情境1中训练对两种刺激（A+，B-）的辨别。在第2阶段，参与者在情境2中接受辨别性逆转训练（A-，B+）。测试在情境1和情境2（实验1A和1B）或情境1和情境3（实验2）中进行。在测试阶段，情境1和情境2中的表现分别反映了第1阶段和第2阶段训练的偶然性。当在情境3中进行测试时，A和B之间没有辨别性反应。此外，实验表明，具有一致强化历史的辨别性刺激也会受到情境操纵的影响。结果表明，每个训练情境都获得了控制表现的能力。独特线索和构型方法解释了大部分结果。
