Fractionating nonword repetition: The contributions of short-term memory and oromotor praxis are different.

The ability to reproduce novel words is a sensitive marker of language impairment across a variety of developmental disorders. Nonword repetition tasks are thought to reflect phonological short-term memory skills. Yet, when children hear and then utter a word for the first time, they must transform...

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Main Authors: Saloni Krishnan, Katherine J Alcock, Daniel Carey, Lina Bergström, Annette Karmiloff-Smith, Frederic Dick
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5509101?pdf=render
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author Saloni Krishnan
Katherine J Alcock
Daniel Carey
Lina Bergström
Annette Karmiloff-Smith
Frederic Dick
author_facet Saloni Krishnan
Katherine J Alcock
Daniel Carey
Lina Bergström
Annette Karmiloff-Smith
Frederic Dick
author_sort Saloni Krishnan
collection DOAJ
description The ability to reproduce novel words is a sensitive marker of language impairment across a variety of developmental disorders. Nonword repetition tasks are thought to reflect phonological short-term memory skills. Yet, when children hear and then utter a word for the first time, they must transform a novel speech signal into a series of coordinated, precisely timed oral movements. Little is known about how children's oromotor speed, planning and co-ordination abilities might influence their ability to repeat novel nonwords, beyond the influence of higher-level cognitive and linguistic skills. In the present study, we tested 35 typically developing children between the ages of 5-8 years on measures of nonword repetition, digit span, memory for non-verbal sequences, reading fluency, oromotor praxis, and oral diadochokinesis. We found that oromotor praxis uniquely predicted nonword repetition ability in school-age children, and that the variance it accounted for was additional to that of digit span, memory for non-verbal sequences, articulatory rate (measured by oral diadochokinesis) as well as reading fluency. We conclude that the ability to compute and execute novel sensorimotor transformations affects the production of novel words. These results have important implications for understanding motor/language relations in neurodevelopmental disorders.
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spelling doaj.art-9c3d688bc4c54454b509b82e4a5566352022-12-22T03:54:08ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01127e017835610.1371/journal.pone.0178356Fractionating nonword repetition: The contributions of short-term memory and oromotor praxis are different.Saloni KrishnanKatherine J AlcockDaniel CareyLina BergströmAnnette Karmiloff-SmithFrederic DickThe ability to reproduce novel words is a sensitive marker of language impairment across a variety of developmental disorders. Nonword repetition tasks are thought to reflect phonological short-term memory skills. Yet, when children hear and then utter a word for the first time, they must transform a novel speech signal into a series of coordinated, precisely timed oral movements. Little is known about how children's oromotor speed, planning and co-ordination abilities might influence their ability to repeat novel nonwords, beyond the influence of higher-level cognitive and linguistic skills. In the present study, we tested 35 typically developing children between the ages of 5-8 years on measures of nonword repetition, digit span, memory for non-verbal sequences, reading fluency, oromotor praxis, and oral diadochokinesis. We found that oromotor praxis uniquely predicted nonword repetition ability in school-age children, and that the variance it accounted for was additional to that of digit span, memory for non-verbal sequences, articulatory rate (measured by oral diadochokinesis) as well as reading fluency. We conclude that the ability to compute and execute novel sensorimotor transformations affects the production of novel words. These results have important implications for understanding motor/language relations in neurodevelopmental disorders.http://europepmc.org/articles/PMC5509101?pdf=render
spellingShingle Saloni Krishnan
Katherine J Alcock
Daniel Carey
Lina Bergström
Annette Karmiloff-Smith
Frederic Dick
Fractionating nonword repetition: The contributions of short-term memory and oromotor praxis are different.
PLoS ONE
title Fractionating nonword repetition: The contributions of short-term memory and oromotor praxis are different.
title_full Fractionating nonword repetition: The contributions of short-term memory and oromotor praxis are different.
title_fullStr Fractionating nonword repetition: The contributions of short-term memory and oromotor praxis are different.
title_full_unstemmed Fractionating nonword repetition: The contributions of short-term memory and oromotor praxis are different.
title_short Fractionating nonword repetition: The contributions of short-term memory and oromotor praxis are different.
title_sort fractionating nonword repetition the contributions of short term memory and oromotor praxis are different
url http://europepmc.org/articles/PMC5509101?pdf=render
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