Auditory-visual speech integration by prelinguistic infants: Perception of an emergent consonant in the McGurk effect


Autoria(s): Burnham, D.; Dodd, B.
Contribuinte(s)

Michel, G. F.

Data(s)

01/01/2004

Resumo

The McGurk effect, in which auditory [ba] dubbed onto [go] lip movements is perceived as da or tha, was employed in a real-time task to investigate auditory-visual speech perception in prelingual infants. Experiments 1A and 1B established the validity of real-time dubbing for producing the effect. In Experiment 2, 4(1)/(2)-month-olds were tested in a habituation-test paradigm, in which 2 an auditory-visual stimulus was presented contingent upon visual fixation of a live face. The experimental group was habituated to a McGurk stimulus (auditory [ba] visual [ga]), and the control group to matching auditory-visual [ba]. Each group was then presented with three auditory-only test trials, [ba], [da], and [deltaa] (as in then). Visual-fixation durations in test trials showed that the experimental group treated the emergent percept in the McGurk effect, [da] or [deltaa], as familiar (even though they had not heard these sounds previously) and [ba] as novel. For control group infants [da] and [deltaa] were no more familiar than [ba]. These results are consistent with infants'perception of the McGurk effect, and support the conclusion that prelinguistic infants integrate auditory and visual speech information. (C) 2004 Wiley Periodicals, Inc.

Identificador

http://espace.library.uq.edu.au/view/UQ:71762

Idioma(s)

eng

Publicador

John Wiley & Sons

Palavras-Chave #Developmental Biology #Psychology #Infant Speech Perception #Auditory-visual Speech Perception #Mcgurk Effect #Auditory-visual Integration #Infant Development #Language Acquisition #Developmental-changes #Phonetic Perception #Preterm Infants #Full-term #Information #Language #Representation #Recognition #Exploration #Synchrony #C1 #380101 Sensory Processes, Perception and Performance #730111 Hearing, vision, speech and their disorders #321014 Obstetrics and Gynaecology #380302 Linguistic Processes (incl. Speech Production and Comprehension) #320705 Sensory Systems #380102 Learning, Memory, Cognition and Language
Tipo

Journal Article