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Chunks are not enough: the insufficiency of feature frequency-based explanations of artificial grammar learning (in special issue on music cognition and performance)

Record type: Article

Two experiments tested chunk frequency explanations of artificial grammar learning which hold that classification performance is dependent on some metric derived from the frequency with which certain features occur within the letter string stimuli. Experiment 1 revealed that classification performance was affected by close graphemic similarity between specific training (e.g., MXRVXT) and test strings (e.g., MXRMXT), despite the fact that similar strings did not contain frequently occurring features (e.g., bigrams or trigrams). This effect was replicated in Experiment 2a and Experiment 2b demonstrated that substituting letters to make the consonant strings pronounceable (e.g., substituting X, R, and T, in the consonant string MXRMXT with Y, A, I, to produce MYAMYI) affected classification performance, despite the fact that objective measures of feature frequency were not altered. It is argued that models of classification that focus entirely on the frequency of features within the literal stimulus are insufficient, and that some allowance must be made for how the stimulus is encoded.

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Citation

Higham, Philip A. (1997) Chunks are not enough: the insufficiency of feature frequency-based explanations of artificial grammar learning (in special issue on music cognition and performance) Canadian Journal of Experimental Psychology, 51, (2), pp. 126-137.

More information

Published date: 1997
Additional Information: Special issue edited by Mark A. Schmuckler

Identifiers

Local EPrints ID: 18313
URI: http://eprints.soton.ac.uk/id/eprint/18313
PURE UUID: 4dbbd133-8725-4dd7-9f29-ee5ca4bf9169

Catalogue record

Date deposited: 06 Mar 2006
Last modified: 17 Jul 2017 16:36

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