Fluency does not express implicit knowledge of artificial grammars

Scott, Ryan B and Dienes, Zoltan (2010) Fluency does not express implicit knowledge of artificial grammars. Cognition, 114 (3). pp. 372-388. ISSN 0010-0277

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Abstract

It is commonly held that implicit knowledge expresses itself as fluency. A perceptual clarification task was used to examine the relationship between perceptual processing fluency, subjective familiarity, and grammaticality judgments in a task frequently used to produce implicit knowledge, artificial grammar learning (AGL). Four experiments examined the effects of naturally occurring differences and manipulated differences in perceptual fluency, where decisions were based on a brief exposure to test-strings (during the clarification task only) or normal exposure. When perceptual fluency was not manipulated, it was weakly related to familiarity and grammaticality judgments, but unrelated to grammatical status and hence not a source of accuracy. Counterbalanced grammatical and ungrammatical strings did not differ in perceptual fluency but differed substantially in subjective familiarity. When fluency was manipulated, faster clarifying strings were rated as more familiar and were more often endorsed as grammatical but only where exposure was brief. Results indicate that subjective familiarity derived from a source other than perceptual fluency, is the primary basis for accuracy in AGL. Perceptual fluency is found to be a dumb heuristic influencing responding only in the absence of actual implicit knowledge. (c) 2009 Elsevier B.V. All rights reserved.

Item Type: Article
Schools and Departments: School of Psychology > Psychology
Depositing User: Ryan Scott
Date Deposited: 06 Feb 2012 15:48
Last Modified: 19 Aug 2014 10:14
URI: http://srodev.sussex.ac.uk/id/eprint/14502
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