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 phono- logical short-term memory skills. Yet, when children hear and then utter a word for the first time, they must transfor...

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Main Authors: Krishnan, S, Alcock, K, Carey, D, Bergström, L, Karmiloff-Smith, A, Dick, F
Format: Journal article
Published: Public Library of Science 2017
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author Krishnan, S
Alcock, K
Carey, D
Bergström, L
Karmiloff-Smith, A
Dick, F
author_facet Krishnan, S
Alcock, K
Carey, D
Bergström, L
Karmiloff-Smith, A
Dick, F
author_sort Krishnan, S
collection OXFORD
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 phono- logical 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-ordi- nation 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 devel- oping 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 diado- chokinesis. 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 diadochokin- esis) 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 oxford-uuid:f44fe672-8c0c-4625-b2bf-1cb9326e25a52022-03-27T12:18:56ZFractionating nonword repetition: The contributions of short-term memory and oromotor praxis are differentJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f44fe672-8c0c-4625-b2bf-1cb9326e25a5Symplectic Elements at OxfordPublic Library of Science2017Krishnan, SAlcock, KCarey, DBergström, LKarmiloff-Smith, ADick, FThe 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 phono- logical 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-ordi- nation 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 devel- oping 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 diado- chokinesis. 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 diadochokin- esis) 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.
spellingShingle Krishnan, S
Alcock, K
Carey, D
Bergström, L
Karmiloff-Smith, A
Dick, F
Fractionating nonword repetition: The contributions of short-term memory and oromotor praxis are different
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
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