Auditory-Visual Speech Processing 2007 (AVSP2007)
Kasteel Groenendaal, Hilvarenbeek, The Netherlands
Our research replicates and extends previous work on infant audio-visual speech perception, demonstrating that two-month-old infants have knowledge of the audio-visual connection between the visual aspects of lip-posture and the pronunciation of vowels and glides. Using the intermodal preferential looking paradigm  the infants display a clear ability to distinguish /a/-/u/, /i/-/u/ and /i/-/wi/. The infants’ ability to discriminate /i/-/wi/ shows that even dynamic aspects of speech production within single syllables are salient to the infants.
Bibliographic reference. Baier, Rebecca / Idsardi, William J. / Lidz, Jeffrey (2007): "Two-month-olds are sensitive to lip rounding in dynamic and static speech events", In AVSP-2007, paper L6-2.