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ERIC Number: EJ834129
Record Type: Journal
Publication Date: 2009-Apr
Pages: 12
Abstractor: As Provided
Reference Count: 59
ISBN: N/A
ISSN: ISSN-0096-1523
Two-Month-Old Infants' Sensitivity to Changes in Arbitrary Syllable-Object Pairings: The Role of Temporal Synchrony
Gogate, Lakshmi J.; Prince, Christopher G.; Matatyaho, Dalit J.
Journal of Experimental Psychology: Human Perception and Performance, v35 n2 p508-519 Apr 2009
To explore early lexical development, the authors examined infants' sensitivity to changes in spoken syllables and objects given different temporal relations between syllable-object pairings. In Experiment 1, they habituated 2-month-olds to 1 syllable, /tah/ or /gah/, paired with an object in "synchronous" (utterances coincident with object motions, N = 16) or "asynchronous" (utterances erratic relative to object motions, N = 16) conditions. In the asynchronous condition, the audio track preceded or succeeded the visual track by 1,200 ms. On test, infants in the synchronous condition alone detected the changes. Post hoc computational analyses confirmed lower time separation, interpreted as greater synchrony, between peaks and onsets-offsets of visual motion and audio energy in the synchronous relative to the asynchronous condition. Further examining lexical development, in Experiment 2 they habituated 2-month-olds (N = 16) to two synchronous syllable-object pairs and tested them on switch versus same pairings. Infants failed to detect the switch in the pairings. These results suggest that 2-month-olds use synchrony to detect changes in one novel syllable-object pairing at a time, providing a basis for further word mapping development. (Contains 5 footnotes, 4 tables and 4 figures.)
American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002-4242. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail: order@apa.org; Web site: http://www.apa.org/publications
Publication Type: Journal Articles; Reports - Research
Education Level: Early Childhood Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A