Is Visual Lexical Access Based on Phonological Codes? Evidence from a Picture-Word Interference Task
نویسندگان
چکیده
The claim that lexical access for visual words is mandatorily mediated by their phonological codes was investigated. One hundred-four participants performed timed naming responses to pictures while instructed to ignore printed words superimposed on the pictures. Distractor words were either semantically related to the picture label or were homophones of a word semantically related to the picture name. Based on the claim that homophones initially activate multiple semantic codes, we hypothesized that the homophone distractors would yield comparable interference to the semantic ones. Picture-word asynchrony (SOA) was varied betweensubjects as 0 ms or +100 ms. For an SOA of 0 ms, semantic interference, but no effect from the homophones was obtained. For an SOA of +100 ms, no effect was obtained in either condition. In combination, these findings indicate a limited role of phonological codes in visual lexical access. It is suggested that the role of phonology in written word identification may vary dependent on procedure and utility to the task.
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