Fig. 4: Nominal (unnormalized) and unilaterality of visual cortex activation during the four stimulus conditions.

a The non-normalized version of plots in Fig. 2c, showing the actual T²_circ activation values for all the four stimulus conditions. No quantifiable difference was evident between the Normative Sample and EL high-ADOS group in any of these conditions (all p > 0.50). Furthermore, the strength of activation during global form processing was so much weaker compared the other three conditions, suggesting the relative immaturity of this perceptual function at 5 months of age, in line with previous findings (e.g., refs. ^16,17,29) in the literature. b. The same plots (Fig. 2c) with the order of the nine AOIs reversed for some of the infants such that all the peak activations now lie on the same side (the right side, arbitrarily chosen). The term flipped AOIs in the figure refers to this rearrangement for some infants. As in the main result (Fig. 2c), midline activations (AOIs A4 and A5) were significantly weaker in EL high-ADOS (***p < 0.001, d = 0.12, and *p = 0.018, d = 0.09, respectively), while the extreme lateral activation (AOI A9) was stronger in EL high-ADOS (*p = 0.048, d = −0.07). Data from the Normative Sample group (n = 473) is plotted as mean, 95%-C.I. (inner band, darker shade) and 99.5%-C.I. (outer band, lighter shade). Data from the EL high-ADOS group (n = 14) is plotted as mean and 95%-C.I. (error bars) along with the individual data points. Confidence intervals for the Normative Sample group are comparatively very small due to its much bigger sample size. See also Supplementary Fig. 2 for more detailed AOI activation plots of the Normative Sample group and Supplementary Table 1 for complete statistics.