Fig. 4.

P2 latency facilitation and intersensory bias. Compared to congruent AV [pa] (a Left), no latency facilitation was observed for fusion (a Center). When attention is directed to visual inputs in AV conditions, temporal facilitation is recovered in fusion (a Right), suggesting that visual attention can enhance the biasing effect of a weak predictor. (b) The amplitude decrease was consistent across all stimuli and independent of attended modality, pointing to the automaticity of AV speech integration.