The effects of auditory information on 4-month-old infants' perception of trajectory continuity.

TitleThe effects of auditory information on 4-month-old infants' perception of trajectory continuity.
Publication TypeJournal Article
Year of Publication2012
AuthorsBremner, GJ, Slater AM, Johnson SP, Mason UC, Spring J
JournalChild development
Volume83
Issue3
Pagination954-64
Date Published2012 May-Jun
ISSN1467-8624
KeywordsAcoustic Stimulation, Analysis of Variance, Female, Fixation, Ocular, Humans, Infant, Male, Motion Perception, Perceptual Masking, Sound Localization
Abstract

Young infants perceive an object's trajectory as continuous across occlusion provided the temporal or spatial gap in perception is small. In 3 experiments involving 72 participants the authors investigated the effects of different forms of auditory information on 4-month-olds' perception of trajectory continuity. Provision of dynamic auditory information about the object's trajectory enhanced perception of trajectory continuity. However, a smaller positive effect was also obtained when the sound was continuous but provided no information about the object's location. Finally, providing discontinuous auditory information or auditory information that was dislocated relative to vision had negative effects on trajectory perception. These results are discussed relative to the intersensory redundancy hypothesis and emphasize the need to take an intersensory approach to infant perception.

DOI10.1111/j.1467-8624.2012.01739.x
Alternate JournalChild Dev