Dissociative effects of stimulus quality on semantic and morphological contexts in visual word recognition.

Full Abstract

Semantic and morphological contexts were manipulated jointly with stimulus quality under conditions where there were few related prime-target pairs (i.e., low relatedness proportion) in a lexical decision experiment. Additive effects of semantic context and stimulus quality on RT were observed, replicating previous work. In contrast, morphological context interacted with stimulus quality. This dissociation is discussed in the context of Besner and colleagues' evolving multistage framework. The essence of the account is that 1) stimulus quality affects feature and letter levels, but not later levels, 2) feedback from semantics to the lexical level is inoperative under low relatedness proportion conditions (hence stimulus quality and semantic context yield additive effects), whereas 3) feedback from the lexical level to the letter level is intact, hence stimulus quality and morphological context produce an interaction by virtue of them affecting a common stage of processing.

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Author information

Author/s: Brown, Matthew (M); Stolz, Jennifer A (JA); Besner, Derek (D);

Affiliation: Carleton University. ms2brown(-atsign-)watarts.uwaterloo.ca

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Canadian journal of experimental psychology = Revue canadienne de psychologie expérimentale (Can J Exp Psychol), published in Canada. (Language: eng)

Reference: 2006-Sep; vol 60 (issue 3) : pp 190-9

Dates: Created 2006/11/01; Completed 2006/12/27;

PMID: 17076434, status: MEDLINE (last retrieval date: 12/26/2008)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Attention
Humans
Linguistics - methods
Reaction Time

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