The cocktail party effect: Infants' use of visual information in speech segmentation
George J. Hollich, Peter W. Jusczyk, Rochelle Suzanne Newman · 1996
month-olds' abilities to use visual/auditory correlations to segment a complex speech stream were studied using the head-turn preference procedure (HPP) following video familiarization. When two blended voices of equal loudness were presented, infants could use visual correspondences to reliably recognize words in the video, even in the case of a moving oscilloscope pattern. In contrast, in cases where a static picture was presented, infants did not show an ability to segment the speech stream at this signal to noise ratio.