Effects of dual-task interference on swallowing in healthy aging adults.

A wide body of literature has demonstrated that the neural representation of healthy swallowing is mostly bilateral, with one hemisphere dominant over the other. While several studies have demonstrated the presence of laterality for swallowing related functions among young adults, the data on older...

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Autores principales:	Rahul Krishnamurthy, Rhea Philip, Radish Kumar Balasubramanium, Balaji Rangarathnam
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/587c8441d68044478043c6978c3b7ab4
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spelling	oai:doaj.org-article:587c8441d68044478043c6978c3b7ab42021-12-02T20:10:04ZEffects of dual-task interference on swallowing in healthy aging adults.1932-620310.1371/journal.pone.0253550https://doaj.org/article/587c8441d68044478043c6978c3b7ab42021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0253550https://doaj.org/toc/1932-6203A wide body of literature has demonstrated that the neural representation of healthy swallowing is mostly bilateral, with one hemisphere dominant over the other. While several studies have demonstrated the presence of laterality for swallowing related functions among young adults, the data on older adults are still growing. The purpose of this paper is to investigate potential changes in hemispheric dominance in healthy aging adults for swallowing related tasks using a behavioral dual-task paradigm. A modified dual-task paradigm was designed to investigate the potential reduction in hemispherical specialization for swallowing function. Eighty healthy right-handed participants in the study were divided into two groups [Group 1: young adults (18-40 years) and Group 2: older adults (65 and above)]. All the participants performed a timed water swallow test at baseline and with two interference conditions (silent word repetition, and facial recognition). The results of the study revealed the following 1) a statistically significant effect of age on swallow performance; 2) statistically significant effect of each of the interference tasks on two of the swallow measures (VPS and VPT) in younger adults; and 3) no significant effect of the interference tasks on the swallowing performance of older adults. These findings suggest that aging substantially affects swallowing in older individuals, and this potentially accompanies a reduction in the hemispheric specialization for swallowing related tasks.Rahul KrishnamurthyRhea PhilipRadish Kumar BalasubramaniumBalaji RangarathnamPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 6, p e0253550 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Rahul Krishnamurthy Rhea Philip Radish Kumar Balasubramanium Balaji Rangarathnam Effects of dual-task interference on swallowing in healthy aging adults.
description	A wide body of literature has demonstrated that the neural representation of healthy swallowing is mostly bilateral, with one hemisphere dominant over the other. While several studies have demonstrated the presence of laterality for swallowing related functions among young adults, the data on older adults are still growing. The purpose of this paper is to investigate potential changes in hemispheric dominance in healthy aging adults for swallowing related tasks using a behavioral dual-task paradigm. A modified dual-task paradigm was designed to investigate the potential reduction in hemispherical specialization for swallowing function. Eighty healthy right-handed participants in the study were divided into two groups [Group 1: young adults (18-40 years) and Group 2: older adults (65 and above)]. All the participants performed a timed water swallow test at baseline and with two interference conditions (silent word repetition, and facial recognition). The results of the study revealed the following 1) a statistically significant effect of age on swallow performance; 2) statistically significant effect of each of the interference tasks on two of the swallow measures (VPS and VPT) in younger adults; and 3) no significant effect of the interference tasks on the swallowing performance of older adults. These findings suggest that aging substantially affects swallowing in older individuals, and this potentially accompanies a reduction in the hemispheric specialization for swallowing related tasks.
format	article
author	Rahul Krishnamurthy Rhea Philip Radish Kumar Balasubramanium Balaji Rangarathnam
author_facet	Rahul Krishnamurthy Rhea Philip Radish Kumar Balasubramanium Balaji Rangarathnam
author_sort	Rahul Krishnamurthy
title	Effects of dual-task interference on swallowing in healthy aging adults.
title_short	Effects of dual-task interference on swallowing in healthy aging adults.
title_full	Effects of dual-task interference on swallowing in healthy aging adults.
title_fullStr	Effects of dual-task interference on swallowing in healthy aging adults.
title_full_unstemmed	Effects of dual-task interference on swallowing in healthy aging adults.
title_sort	effects of dual-task interference on swallowing in healthy aging adults.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/587c8441d68044478043c6978c3b7ab4
work_keys_str_mv	AT rahulkrishnamurthy effectsofdualtaskinterferenceonswallowinginhealthyagingadults AT rheaphilip effectsofdualtaskinterferenceonswallowinginhealthyagingadults AT radishkumarbalasubramanium effectsofdualtaskinterferenceonswallowinginhealthyagingadults AT balajirangarathnam effectsofdualtaskinterferenceonswallowinginhealthyagingadults
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Effects of dual-task interference on swallowing in healthy aging adults.

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