ORCID Profile
0000-0001-5453-2860
Current Organisation
Philipps-Universität Marburg
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Publisher: Public Library of Science (PLoS)
Date: 24-06-2013
Publisher: Springer Science and Business Media LLC
Date: 19-02-2016
DOI: 10.3758/S13420-016-0212-7
Abstract: In two human predictive-learning experiments, we investigated the effects of extinction in multiple contexts on the rate of extinction and the strength of response recovery. In each experiment, participants initially received acquisition training with a target cue in one context, followed by extinction either in a different context (extinction in a single context) or in three different contexts (extinction in multiple contexts). The results of both experiments showed that conducting extinction in multiple contexts led to higher levels of responding during extinction than did extinction in a single context. Additionally, Experiment 2 showed that extinction in multiple contexts prevented ABC renewal but had no detectable impact on ABA renewal. Our results are discussed within the framework of contemporary learning theories of contextual control and extinction.
Publisher: SAGE Publications
Date: 07-2017
DOI: 10.1080/17470218.2016.1184290
Abstract: Participants in two human goal-tracking experiments were simultaneously trained with negative patterning (NP) and positive patterning (PP) discriminations (A+, B+, AB–, C–, D–, CD+). Both elemental and configural models of associative learning predict a PP advantage, such that NP is solved less readily than PP. However, elemental models like the unique cue approach additionally predict responding in AB– trials to be initially stronger than that in A+ and B+ trials due to summation of associative strength. Both experiments revealed a PP advantage and a strong summation effect in AB– trials in the first half of the experiments, irrespective of whether the same US was used for both discriminations (Experiment 1) or two different USs (Experiment 2). We discuss that the correct predictions of the unique cue approach are based on its assumptions of non-normalized and context-independent stimulus processing rather than elemental processing per se.
Publisher: American Psychological Association (APA)
Date: 04-2019
DOI: 10.1037/XAN0000197
Abstract: A wealth of recent studies have demonstrated that predictive cues involved in a linearly solvable component discrimination gain associability in subsequent learning relative to nonpredictive cues. In contrast, contradictory findings have been reported about the fate of cues involved in learning biconditional discriminations in which the cues are relevant but none are in idually predictive of a specific outcome. In 3 experiments we examined the transfer of learning from component and biconditional discriminations in a within-subjects design. The results show a greater benefit in associability for cues that had previously served as predictive cues in a component discrimination than cues previously used in a biconditional discrimination. Further, new biconditional discriminations were learned faster when they were composed of cues that were previously trained in separate biconditional discriminations. Similarly, new component discriminations were learned faster when they were composed of cues that were previously trained in a separate component discriminations irrespective of whether they were previously predictive or previously nonpredictive. These results provide novel evidence that cue-specific learning of relational structure affects subsequent learning, suggesting changes in cue processing that go beyond simple changes in cue associability based on learned predictiveness. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
Publisher: Elsevier BV
Date: 10-2020
No related grants have been discovered for Metin Uengoer.