Fig. 2.

Average accuracy for the pairwise classification of visual stimuli in infants (12-15-month-olds) and adults. Left: Average ± s.e.m. accuracy timeseries for pairwise, within-subject classification within (e.g. cat vs. dog) or across domains (e.g. cat vs. hand). Thick (resp. thin) horizontal lines indicate statistically significant (resp. marginally significant) clusters of the difference between accuracy and the chance level of 50 % (one-tailed). Red horizontal lines indicate significant clusters for the difference in accuracy between classifications across vs. within domains (one-tailed). Middle: Average, within-subject time generalization accuracy for all pairwise classifications. Solid (resp. dotted) white lines indicate the border of statistically (resp. marginally) significant 2-D clusters of the difference between accuracy and the chance level of 50 %. Right: Average difference of within-subject time generalization accuracy for pairwise classifications across (e.g. cat vs. hand) vs. within (e.g. cat vs. dog) domains (e.g. cat vs. dog). White lines indicate the border of statistically significant clusters of this difference. See also Supplementary Fig. 2.