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Rapid Gains in Speed of Verbal Processing by Infants in the 2nd Year

Rapid Gains in Speed of Verbal Processing by Infants in the 2nd Year Infants improve substantially in language ability during their 2nd year. Research onthe early development of speech production shows that vocabulary begins to expandrapidly around the age of 18 months. During this period, infants also make impressivegains in understanding spoken language. We examined the time course of wordrecognition in infants ages 15 to 24 months, tracking their eye movements as theylooked at pictures in response to familiar spoken words. The speed and efficiency ofverbal processing increased dramatically over the 2nd year. Although 15-month-oldinfants did not orient to the correct picture until after the target word was spoken,24-month-olds were significantly faster, shifting their gaze to the correct picturebefore the end of the spoken word. By 2 years of age, children are progressing towardthe highly efficient performance of adults, making decisions about words based onincomplete acoustic information. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Psychological Science SAGE

Rapid Gains in Speed of Verbal Processing by Infants in the 2nd Year

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References (20)

Publisher
SAGE
Copyright
© 1998 Association for Psychological Science
ISSN
0956-7976
eISSN
1467-9280
DOI
10.1111/1467-9280.00044
Publisher site
See Article on Publisher Site

Abstract

Infants improve substantially in language ability during their 2nd year. Research onthe early development of speech production shows that vocabulary begins to expandrapidly around the age of 18 months. During this period, infants also make impressivegains in understanding spoken language. We examined the time course of wordrecognition in infants ages 15 to 24 months, tracking their eye movements as theylooked at pictures in response to familiar spoken words. The speed and efficiency ofverbal processing increased dramatically over the 2nd year. Although 15-month-oldinfants did not orient to the correct picture until after the target word was spoken,24-month-olds were significantly faster, shifting their gaze to the correct picturebefore the end of the spoken word. By 2 years of age, children are progressing towardthe highly efficient performance of adults, making decisions about words based onincomplete acoustic information.

Journal

Psychological ScienceSAGE

Published: May 1, 1998

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