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Schematic of the visual processing task. Infants saw two types of trials. In gap trials, there was a 250-ms temporal gap between the fixation and the target. In overlap trials, there was a 250-ms temporal overlap between the fixation and the target. On each trial, we assessed infants’ reaction time (RT), defined as the first target look during a time window from 200 ms after target onset (RT Measure).
