Abstract
Whether audiovisual inputs are integrated or separately processed depends on the congruency, e.g., temporal synchrony, between them. Some studies have assumed that the familiarity to the stimuli influences on the integration process. Here, we investigated how familiarity to the speaker’s face and voice influences audiovisual temporal binding processing. In the experiment, we presented the audiovisual speech by familiar and unfamiliar faces with various A/V onset asynchronies within +/- 800 ms. We asked participants to judge synchrony of audiovisual stimuli, then calculated the temporal binding window (TBW). The results showed that the width of the TBW in the familiar and unfamiliar conditions were comparable, which indicates little impact of face familiarity on the temporal binding processing. We discussed potential reasons for our results in reference to the cortical network for processing temporal binding of audiovisual inputs.
