Visual-Field Differences for a Number-Non-Number Classification of Alphabetic and Ideographic Stimuli

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Abstract
Subjects made a number-non-number classification for single numbers or non-numbers presented either in the left or right visual field. A right visual field advantage was observed both for numbers written ideographically (Arabic numerals) and alphabetically. The laterality effect was stronger for the alphabetic than for the ideographic script, but the interaction with visual field failed to reach statistical significance. The results are discussed in the framework of other studies contrasting the processing of logographic and phonographic scripts as a function of the visual field.