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A computational implementation of a Hebbian learning network and its application to configural forms of acquired equivalence

Robinson, Jasper; George, David N.; Heinke, Dietmar

Authors

Jasper Robinson

Dietmar Heinke



Abstract

We describe and report the results of computer simulations of the three-layer Hebbian network informally described by Honey, Close, and Lin (2010): A general account of discrimination that has been shaped by data from configural acquired equivalence experiments that are beyond the scope of alternative models. Simulations implemented a conditional principle components analysis (CPCA) Hebbian learning algorithm and were of four published experimental demonstrations of configural acquired equivalence. Experiments involved training rats on appetitive bi-conditional discriminations in which discrete cues, (w and x) signaled food delivery (+) or its absence (-) in four different contexts (A, B, C and D): Aw+ Bw- Cw+ Dw- Ax- Bx+ Cx- Dx+. Contexts A and C acquired equivalence. In three of the experiments acquired equivalence was evident from subsequent revaluation, from compound testing or from whole-/part-reversal training. The fourth experiment added concurrent bi-conditional discriminations with the same contexts but a pair of additional discrete cues (y and z). The congruent form of the discrimination, in which A and C provided the same information about y and z, was solved relatively readily. Parametric variation allowed the network to successfully simulate the results of each of the four experiments.

Journal Article Type Note
Publication Date Jul 1, 2019
Journal Journal of Experimental Psychology: Animal Learning and Cognition
Print ISSN 2329-8464
Electronic ISSN 2329-8464
Publisher American Psychological Association
Peer Reviewed Peer Reviewed
Volume 45
Issue 3
Pages 356-371
APA6 Citation Robinson, J., George, D. N., & Heinke, D. (2019). A computational implementation of a Hebbian learning network and its application to configural forms of acquired equivalence. Journal of Experimental Psychology: Animal Learning and Cognition, 45(3), 356-371. https://doi.org/10.1037/xan0000203
DOI https://doi.org/10.1037/xan0000203
Keywords Acquired equivalence; Configural; Discrimination; Hebbian; Learning
Publisher URL https://psycnet.apa.org/record/2019-36796-001

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©American Psychological Association, 2019. This paper is not the copy of record and may not exactly replicate the authoritative document published in the APA journal. Please do not copy or cite without author's permission.





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