Infant selective attention to native and non-native audiovisual speech

The current study utilized eye-tracking to investigate the effects of intersensory redundancy and language on infant visual attention and detection of a change in prosody in audiovisual speech. Twelve-month-old monolingual English-learning infants viewed either synchronous (redundant) or asynchronou...

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Bibliographic Details
Published in:Scientific reports 2022-09, Vol.12 (1), p.15781-12, Article 15781
Main Authors: Roth, Kelly C., Clayton, Kenna R. H., Reynolds, Greg D.
Format: Article
Language:English
Subjects:
631/378/2649/1310
631/477/2811
Adults
Age
Attention
Babies
Child-directed speech
Eye movements
Face
Female
Humanities and Social Sciences
Humans
Infant
Infants
Language
Learning
Monolingualism
Mouth
multidisciplinary
Native languages
Perceptions
Prosody
Redundancy
Science
Science (multidisciplinary)
Sensory integration
Speaking
Speech
Speech Perception
Visual perception
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Summary:The current study utilized eye-tracking to investigate the effects of intersensory redundancy and language on infant visual attention and detection of a change in prosody in audiovisual speech. Twelve-month-old monolingual English-learning infants viewed either synchronous (redundant) or asynchronous (non-redundant) presentations of a woman speaking in native or non-native speech. Halfway through each trial, the speaker changed prosody from infant-directed speech (IDS) to adult-directed speech (ADS) or vice versa. Infants focused more on the mouth of the speaker on IDS trials compared to ADS trials regardless of language or intersensory redundancy. Additionally, infants demonstrated greater detection of prosody changes from IDS speech to ADS speech in native speech. Planned comparisons indicated that infants detected prosody changes across a broader range of conditions during redundant stimulus presentations. These findings shed light on the influence of language and prosody on infant attention and highlight the complexity of audiovisual speech processing in infancy.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-022-19704-5