Context-dependent role of selective attention for change detection in multi-speaker scenes.

ABSTRACT: Disappearance of a voice or other sound source may often go unnoticed when the auditory scene is crowded. We explored the role of selective attention for this change deafness with magnetoencephalography in multi-speaker scenes. Each scene was presented two times in direct succession, and one target speaker was frequently omitted in Scene 2. When listeners were previously cued to the target speaker, activity in auditory cortex time locked to the target speaker's sound envelope was selectively enhanced in Scene 1, as was determined by a cross-correlation analysis. Moreover, the response was stronger for hit trials than for miss trials, confirming that selective attention played a role for subsequent change detection. If selective attention to the streams where the change occurred was general

SUBMITTER: Starzynski C 

PROVIDER: S-EPMC6866511 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature