黙読における聴覚言語イメージの個人差

抄録

The purpose of this study was to investigate the individual differences in auditory speech images available in reading printed material silently. In the first task of Experiment I, the subjects were presented with a pair of words in Kanji, and they had to judge whether the first word was the antonym of the second or not. The second task required the subjects to judge whether a presented phrase was comprehensible or nonsense. Both of these tasks adopted homophones as some of their stimuli, which made it possible to generate two conditions: (1) phonological-coding-necessary condition and (2) direct-pathway-available condition. The difference between the reaction times under the two conditions for each subject was regarded as an index of independence from auditory speech images when reading silently. Experiment II suggested that those who are likely to depend on such images showed much the same patterns of eye movements regardless of the way of reading (i.e. silently or aloud), when instructed to read the text at their own pace.