Discrimination and Ordinal Judgments of Temporal Durations at 3 Months

This study presents the first evidence that 3-month-old infants success in a timing matching task and in an ordinal timing task, when numerical information are controlled. Three- month-old infants discriminated a brief temporal durations that differ by a 1:3 ratio, relying solely on temporal information. Moreover, at 3 months of age infants were able to discriminate between a monotonic and a non-monotonic time-based series, when numerical and temporal information are inconsistent .These findings strength the hypothesis that a magnitude representational system for temporal quantities is operating very early in the ontogenetic development.