Asymmetry of generalization decrement in causal learning

Author: Steven Glautier  

Publisher: Routledge Ltd

ISSN: 1464-1321

Source: The Quarterly Journal of Experimental Psychology B, Vol.57, Iss.4, 2004-10, pp. : 315-329

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Abstract

Two experiments required volunteers to learn which of various "planes" caused high levels of pollution. Novel test items were then rated as causes of pollution. Items created by adding novel features were rated at the same level as that of the original training items but items created by removing features received reduced ratings. This asymmetry of generalization decrement was not predicted by a well-known configural model of stimulus representation (Pearce, 1987, 1994) but was predicted by a recently proposed model of stimulus representation, the replaced-elements model (Brandon, Vogel, & Wagner, 2000).