title: Two- to eight-month-old infants' perception of dynamic auditory-visual spatial colocation.
abstract: From birth, infants detect associations between the locations of static visual objects and sounds they emit, but there is limited evidence regarding their sensitivity to the dynamic equivalent when a sound-emitting object moves. In 4 experiments involving thirty-six 2-month-olds, forty-eight 5-month-olds, and forty-eight 8-month-olds, we investigated infants' ability to process this form of spatial colocation. Whereas there was no evidence of spontaneous sensitivity, all age groups detected a dynamic colocation during habituation and looked longer at test trials in which sound and sight were dislocated. Only 2-month-olds showed clear sensitivity to the dislocation relation, although 8-month-olds did so following additional habituation. These results are discussed relative to the intersensory redundancy hypothesis and work suggesting increasing specificity in processing with age.
authors.affiliation: Psychology Department, Centre for Research in Human Development, Lancaster University, UK. j.g.bremner@lancaster.ac.uk
authors.forename: J Gavin
authors.initials: JG
authors.lastname: Bremner
authors.forename: Alan M
authors.initials: AM
authors.lastname: Slater
authors.forename: Scott P
authors.initials: SP
authors.lastname: Johnson
authors.forename: Uschi C
authors.initials: UC
authors.lastname: Mason
authors.forename: Jo
authors.initials: J
authors.lastname: Spring
authors.forename: Maggie E
authors.initials: ME
authors.lastname: Bremner
mesh_terms: D000367:Age Factors; D001307:Auditory Perception / Q000502:physiology*; D002657:Child Development; D005260:Female; D006185:Habituation, Psychophysiologic; D006801:Humans; D007223:Infant; D008297:Male; D009483:Neuropsychological Tests; D014741:Video Recording; D014796:Visual Perception / Q000502:physiology*