Abstract
In two experiments, observers learned two types of category structures: those in which perfect accuracy could be achieved via some explicit rule-based strategy and those in which perfect accuracy required integrating information from separate perceptual dimensions at some predecisional stage. At the end of training, some observers were required to switch their hands on the response keys, whereas the assignment of categories to response keys was switched for other observers. With the rule-based category structures, neither change in response instructions interfered with categorization accuracy. However, with the information-integration structures, switching response key assignments interfered with categorization performance, but switching hands did not. These results are consistent with the hypothesis that abstract category labels are learned in rule-based categorization, whereas response positions are learned in information-integration categorization. The association to response positions also supports the hypothesis of a procedural-learning-based component to information integration categorization.
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This research was supported in part by National Science Foundation Grant BCS99-75037 and by Public Health Service Grant MH3760.
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Ashby, F.G., Ell, S.W. & Waldron, E.M. Procedural learning in perceptual categorization. Memory & Cognition 31, 1114–1125 (2003). https://doi.org/10.3758/BF03196132
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DOI: https://doi.org/10.3758/BF03196132