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Solving XOR

Grand, Christopher and Honey, Robert Colin ORCID: 2008. Solving XOR. Journal of Experimental Psychology: Animal Behavior Processes 34 (4) , pp. 486-493. 10.1037/0097-7403.34.4.486

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hree experiments examined the way in which exclusive-or (XOR) problems are solved by rats. All rats first received food-rewarded positive and negative patterning problems with two stimulus sets: either A+, B+, AB- and C-, D-, CD+, or A-, B-, AB + and C+, D +, and CD-. Subsequently, rats received revaluation trials in which A was paired with shock and C was not, prior to generalization test trials with B, D, AB, and CD (Experiments 1 & 2); or received A→shock trials prior to tests with B and CD (Experiment 3). There was greater generalized fear to B than to either D (Experiments 1 & 2) or AB (Experiment 2) and CD (Experiments 2 & 3). These results are inconsistent with configural, connectionist models, but are consistent with an alternative connectionist model that can represent the logical structure of XOR problems.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Additional Information: Correction Notice: An erratum for this article was reported in Vol 35(1) of Journal of Experimental Psychology: Animal Behavior Processes (see record 2009-00257-012). Figure 2 in the article was printed incorrectly due to an editing error.
Publisher: American Psychological Association
ISSN: 0097-7403
Last Modified: 17 Oct 2022 09:47

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