Figure 1.
Stimuli and Areas of Interest (AOIs) in a mismatch display.
The face on the left side is incongruent with the sound (/ga/) and mouths/ba/, which is known to create a non-fused percept ‘bga’ in children and adults. The face on the right side is congruent with the sound (visual/ga/- audio/ga/).
Table 1.
Average looking times to faces, eyes, and mouths across displays in infants at low- and high-risk.
Figure 2.
Looking time of infants at low versus high risk for autism in a McGurk paradigm.
Low-risk infants looked as long at the incongruent mouth as at the congruent mouth in the fusion condition, demonstrating that they can integrate AV speech information, and they looked longer at the incongruent mouth than at the congruent mouth in the mismatch condition, indicating that they perceive incongruent, non-fusible AV speech information. In contrast, high-risk infants had the same looking behaviours in both the mismatch and fusion conditions, reflecting poor AV integration and detection of incongruence between AV information. Error bars are standard error of the means. *p<0.05.