Visual field differences in an enumeration task of dots

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概要

• 論文の詳細を見る

• A dot enumeration experiment was conducted to investigate the functional hemispheric difference in visual information processing. A random dot pattern consisting of one to nine dots was presented either centrally or peripherally. Three male undergraduate and 13 male graduate students served as subjects. They were asked to report the perceived number of dots as fast as possible and to assign a confidence rating score to each report. Accuracy scores showed no significant visual field difference, though a left visual field (LVF) superiority had been reported by Kimura (1966). Reported numbers of dots were larger in right visual field (RVF) than in LVF. Reaction times (RTs) as a function of the reported number of dots indicated that counting rates were similar in both VFs. On the other hand, inclusive RTs (including RTs for incorrect responses) as a function of the actual number of dots were longer in RVF than in LVF. These results, as well as confidence rating data, were explained by the left hemishpere superiority in the early stages of visual information processing of dots.

• 公益社団法人 日本心理学会の論文

著者

• 大谷 芳夫

  京都大学

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• Visual field differences in an enumeration task of dots

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