The effect of suppressing subvocal speech on text processing during auditory and visual presentation

概要

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A text was presented auditorily or visually with or without suppression of subvocal speech to 48 6th graders. Subjects in the suppressed condition were masticating chewing-gum during presentation of the text so that subvocalization would be suppressed. Subjects in the normal condition were free from suppression. After the text, 20 test items were presented audiovisually and subjects answered them in writing. There was no modality difference in the normal condition, while auditory superiority was observed in the suppressed condition as for the test performance. This interaction is due to the effect of suppressing subvocal speech on visual performance. From this result it became clear that only the text processing in the visual condition depends on subvocal speech. And it lends support to the explanation of the modality effect on text processing in terms of the visual disadvantage of translation.
公益社団法人日本心理学会の論文