| Abstract: | Reports an error in "Solving XOR" by C. Grand and R. C. Honey (Journal of Experimental Psychology: Animal Behavior Processes, 2008[Oct], Vol 34[4], 486-493). Figure 2 in the article was printed incorrectly due to an editing error. The correct version of Figure 2 is provided in the erratum. (The following abstract of the original article appeared in record 2008-14849-005.) Three 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. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
