ERIC Number: EJ1180817
Record Type: Journal
Publication Date: 2018-Jun
Abstractor: As Provided
Neural Processing of Congruent and Incongruent Audiovisual Speech in School-Age Children and Adults
Heikkilä, Jenni; Tiippana, Kaisa; Loberg, Otto; Leppänen, Paavo H. T.
Language Learning, v68 suppl 1 p58-79 Jun 2018
Seeing articulatory gestures enhances speech perception. Perception of auditory speech can even be changed by incongruent visual gestures, which is known as the McGurk effect (e.g., dubbing a voice saying /mi/ onto a face articulating /ni/, observers often hear /ni/). In children, the McGurk effect is weaker than in adults, but no previous knowledge exists about the neural-level correlates of the McGurk effect in school-age children. Using brain event-related potentials, we investigated change detection responses to congruent and incongruent audiovisual speech in school-age children and adults. We used an oddball paradigm with a congruent audiovisual /mi/ as the standard stimulus and a congruent audiovisual /ni/ or McGurk A/mi/V/ni/ as the deviant stimulus. In adults, a similar change detection response was elicited by both deviant stimuli. In children, change detection responses differed between the congruent and the McGurk stimulus. This reflects a maturational difference in the influence of visual stimuli on auditory processing.
Descriptors: Articulation (Speech), Audiovisual Aids, Brain Hemisphere Functions, Diagnostic Tests, Auditory Stimuli, Visual Stimuli, Language Processing, Auditory Perception, Speech Communication, Correlation, Age Differences, Children, Adults, Change, Task Analysis
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Publication Type: Journal Articles; Reports - Research
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