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In noisy settings, listening is aided by correlated dynamic visual cues gleaned from a talker's face-an improvement often attributed to visually reinforced linguistic information. In this study, we aimed to test the effect of audio-visual temporal coherence alone on selective listening, free of linguistic confounds. We presented listeners with competing auditory streams whose amplitude varied independently and a visual stimulus with varying radius, while manipulating the cross-modal temporal relationships. Performance improved when the auditory target's timecourse matched that of the visual stimulus. The fact that the coherence was between task-irrelevant stimulus features suggests that the observed improvement stemmed from the integration of auditory and visual streams into cross-modal objects, enabling listeners to better attend the target. These findings suggest that in everyday conditions, where listeners can often see the source of a sound, temporal cues provided by vision can help listeners to select one sound source from a mixture.

Original publication

DOI

10.7554/eLife.04995

Type

Journal article

Journal

eLife

Publication Date

01/01/2015

Volume

4