A left visual advantage for quantity processing in neonates
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Updated: Dec 11, 2025

Exploring Infant Sensitivity to Visual Language using Eye Tracking and the Preferential Looking Paradigm
Published on: May 15, 2019
Koleen McCrink1, Ludovica Veggiotti2, Maria Dolores de Hevia2
1Department of Psychology, Barnard College, Columbia University, New York, New York.
Abstract:
Forty-eight newborn infants were tested in one of three multimodal stimulus conditions, in which auditory quantities were presented alongside visual object arrays in two test trials. These tests varied with respect to which side (either left or right) numerically matched the auditory number. The infants looked longer to the test trials in which the left side of the visual display exhibited a quantity that matched the presented auditory quantity. This study provides the first evidence for an untrained, innate bias for humans to preferentially process quantity information presented in the left field of vision.
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