科研之友
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摘要
Purpose: Pronouncing a novel word for the first time requires the transformation of a newly encoded speech signal into a series of coordinated, exquisitely timed oromotor movements. Individual differences in children%26apos;s ability to repeat novel nonwords are associated with vocabulary development and later literacy. Nonword repetition (NWR) is often used to test clinical populations. While phonological/ auditory memory contributions to learning and pronouncing nonwords have been extensively studied, much less is known about the contribution of children%26apos;s oromotor skills to this process. Method: Two independent cohorts of children ( 7- 13 years [ N = 40] and 6.9- 7.7 years [ N = 37]) were tested on a battery of linguistic and nonlinguistic tests, including NWR and oromotor tasks. Results: In both cohorts, individual differences in oromotor control were a significant contributor to NWR abilities; moreover, in an omnibus analysis including experimental and standardized tasks, oromotor control predicted the most unique variance in NWR. Conclusion: Results indicate that nonlinguistic oromotor skills contribute to children%26apos;s NWR ability and suggest that important aspects of language learning and consequent language deficits may be rooted in the ability to perform complex sensorimotor transformations.
- 出版日期2013-12
