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|Title:||More is generally better: higher working memory capacity does not impair perceptual category learning|
|Citation:||Journal of Experimental Psychology: Learning, Memory, and Cognition, 2017; 43(4):503-514|
|Publisher:||American Psychological Association|
|Michael L. Kalish, Ben R. Newell, John C. Dunn|
|Abstract:||It is sometimes supposed that category learning involves competing explicit and procedural systems, with only the former reliant on working memory capacity (WMC). In 2 experiments participants were trained for 3 blocks on both filtering (often said to be learned explicitly) and condensation (often said to be learned procedurally) category structures. Both experiments (total N = 160) demonstrated that participants with higher WMC tended to be more accurate in condensation tasks, but not less accurate in filtering tasks. Furthermore, state-trace analysis did not find a differential influence of WMC on performance in these tasks. Finally, inspection of the mixture of response strategies at play across the 2 conditions and 3 blocks showed only a minor influence of WMC, and then only on later training blocks. The results provide no support for the existence of a "system" of category learning that is independent of working memory and are instead consistent with most single-system interpretations of category learning.|
|Keywords:||Category learning; categorization; working memory; dissociable systems; implicit learning|
|Rights:||© 2016 American Psychological Association|
|Appears in Collections:||Psychology publications|
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