Hemispheric lateralization of motor thresholds in relation to stuttering.

Stuttering is a complex speech disorder. Previous studies indicate a tendency towards elevated motor threshold for the left hemisphere, as measured using transcranial magnetic stimulation (TMS). This may reflect a monohemispheric motor system impairment. The purpose of the study was to investigate t...

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Autores principales:	Per A Alm, Ragnhild Karlsson, Madeleine Sundberg, Hans W Axelson
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/adef9e04958743cc8c7c51a1883e7359
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spelling	oai:doaj.org-article:adef9e04958743cc8c7c51a1883e73592021-11-18T08:51:25ZHemispheric lateralization of motor thresholds in relation to stuttering.1932-620310.1371/journal.pone.0076824https://doaj.org/article/adef9e04958743cc8c7c51a1883e73592013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24146930/?tool=EBIhttps://doaj.org/toc/1932-6203Stuttering is a complex speech disorder. Previous studies indicate a tendency towards elevated motor threshold for the left hemisphere, as measured using transcranial magnetic stimulation (TMS). This may reflect a monohemispheric motor system impairment. The purpose of the study was to investigate the relative side-to-side difference (asymmetry) and the absolute levels of motor threshold for the hand area, using TMS in adults who stutter (n = 15) and in controls (n = 15). In accordance with the hypothesis, the groups differed significantly regarding the relative side-to-side difference of finger motor threshold (p = 0.0026), with the stuttering group showing higher motor threshold of the left hemisphere in relation to the right. Also the absolute level of the finger motor threshold for the left hemisphere differed between the groups (p = 0.049). The obtained results, together with previous investigations, provide support for the hypothesis that stuttering tends to be related to left hemisphere motor impairment, and possibly to a dysfunctional state of bilateral speech motor control.Per A AlmRagnhild KarlssonMadeleine SundbergHans W AxelsonPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 10, p e76824 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Per A Alm Ragnhild Karlsson Madeleine Sundberg Hans W Axelson Hemispheric lateralization of motor thresholds in relation to stuttering.
description	Stuttering is a complex speech disorder. Previous studies indicate a tendency towards elevated motor threshold for the left hemisphere, as measured using transcranial magnetic stimulation (TMS). This may reflect a monohemispheric motor system impairment. The purpose of the study was to investigate the relative side-to-side difference (asymmetry) and the absolute levels of motor threshold for the hand area, using TMS in adults who stutter (n = 15) and in controls (n = 15). In accordance with the hypothesis, the groups differed significantly regarding the relative side-to-side difference of finger motor threshold (p = 0.0026), with the stuttering group showing higher motor threshold of the left hemisphere in relation to the right. Also the absolute level of the finger motor threshold for the left hemisphere differed between the groups (p = 0.049). The obtained results, together with previous investigations, provide support for the hypothesis that stuttering tends to be related to left hemisphere motor impairment, and possibly to a dysfunctional state of bilateral speech motor control.
format	article
author	Per A Alm Ragnhild Karlsson Madeleine Sundberg Hans W Axelson
author_facet	Per A Alm Ragnhild Karlsson Madeleine Sundberg Hans W Axelson
author_sort	Per A Alm
title	Hemispheric lateralization of motor thresholds in relation to stuttering.
title_short	Hemispheric lateralization of motor thresholds in relation to stuttering.
title_full	Hemispheric lateralization of motor thresholds in relation to stuttering.
title_fullStr	Hemispheric lateralization of motor thresholds in relation to stuttering.
title_full_unstemmed	Hemispheric lateralization of motor thresholds in relation to stuttering.
title_sort	hemispheric lateralization of motor thresholds in relation to stuttering.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/adef9e04958743cc8c7c51a1883e7359
work_keys_str_mv	AT peraalm hemisphericlateralizationofmotorthresholdsinrelationtostuttering AT ragnhildkarlsson hemisphericlateralizationofmotorthresholdsinrelationtostuttering AT madeleinesundberg hemisphericlateralizationofmotorthresholdsinrelationtostuttering AT hanswaxelson hemisphericlateralizationofmotorthresholdsinrelationtostuttering
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Hemispheric lateralization of motor thresholds in relation to stuttering.

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