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Neural correlates of motor-cognitive dual-tasking in young and old adults
When two tasks are performed simultaneously, performance often declines in one or both tasks. These so-called dual-task costs are more pronounced in old than in young adults. One proposed neurological mechanism of the dual-task costs is that old compared with young adults tend to execute single-task...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5722310/ https://www.ncbi.nlm.nih.gov/pubmed/29220349 http://dx.doi.org/10.1371/journal.pone.0189025 |
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author | Papegaaij, Selma Hortobágyi, Tibor Godde, Ben Kaan, Wim A. Erhard, Peter Voelcker-Rehage, Claudia |
author_facet | Papegaaij, Selma Hortobágyi, Tibor Godde, Ben Kaan, Wim A. Erhard, Peter Voelcker-Rehage, Claudia |
author_sort | Papegaaij, Selma |
collection | PubMed |
description | When two tasks are performed simultaneously, performance often declines in one or both tasks. These so-called dual-task costs are more pronounced in old than in young adults. One proposed neurological mechanism of the dual-task costs is that old compared with young adults tend to execute single-tasks with higher brain activation. In the brain regions that are needed for both tasks, the reduced residual capacity may interfere with performance of the dual-task. This competition for shared brain regions has been called structural interference. The purpose of the study was to determine whether structural interference indeed plays a role in the age-related decrease in dual-task performance. Functional magnetic resonance imaging (fMRI) was used to investigate 23 young adults (20–29 years) and 32 old adults (66–89 years) performing a calculation (serial subtraction by seven) and balance-simulation (plantar flexion force control) task separately or simultaneously. Behavioral performance decreased during the dual-task compared with the single-tasks in both age groups, with greater dual-task costs in old compared with young adults. Brain activation was significantly higher in old than young adults during all conditions. Region of interest analyses were performed on brain regions that were active in both tasks. Structural interference was apparent in the right insula, as quantified by an age-related reduction in upregulation of brain activity from single- to dual-task. However, the magnitude of upregulation did not correlate with dual-task costs. Therefore, we conclude that the greater dual-task costs in old adults were probably not due to increased structural interference. |
format | Online Article Text |
id | pubmed-5722310 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-57223102017-12-15 Neural correlates of motor-cognitive dual-tasking in young and old adults Papegaaij, Selma Hortobágyi, Tibor Godde, Ben Kaan, Wim A. Erhard, Peter Voelcker-Rehage, Claudia PLoS One Research Article When two tasks are performed simultaneously, performance often declines in one or both tasks. These so-called dual-task costs are more pronounced in old than in young adults. One proposed neurological mechanism of the dual-task costs is that old compared with young adults tend to execute single-tasks with higher brain activation. In the brain regions that are needed for both tasks, the reduced residual capacity may interfere with performance of the dual-task. This competition for shared brain regions has been called structural interference. The purpose of the study was to determine whether structural interference indeed plays a role in the age-related decrease in dual-task performance. Functional magnetic resonance imaging (fMRI) was used to investigate 23 young adults (20–29 years) and 32 old adults (66–89 years) performing a calculation (serial subtraction by seven) and balance-simulation (plantar flexion force control) task separately or simultaneously. Behavioral performance decreased during the dual-task compared with the single-tasks in both age groups, with greater dual-task costs in old compared with young adults. Brain activation was significantly higher in old than young adults during all conditions. Region of interest analyses were performed on brain regions that were active in both tasks. Structural interference was apparent in the right insula, as quantified by an age-related reduction in upregulation of brain activity from single- to dual-task. However, the magnitude of upregulation did not correlate with dual-task costs. Therefore, we conclude that the greater dual-task costs in old adults were probably not due to increased structural interference. Public Library of Science 2017-12-08 /pmc/articles/PMC5722310/ /pubmed/29220349 http://dx.doi.org/10.1371/journal.pone.0189025 Text en © 2017 Papegaaij et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Papegaaij, Selma Hortobágyi, Tibor Godde, Ben Kaan, Wim A. Erhard, Peter Voelcker-Rehage, Claudia Neural correlates of motor-cognitive dual-tasking in young and old adults |
title | Neural correlates of motor-cognitive dual-tasking in young and old adults |
title_full | Neural correlates of motor-cognitive dual-tasking in young and old adults |
title_fullStr | Neural correlates of motor-cognitive dual-tasking in young and old adults |
title_full_unstemmed | Neural correlates of motor-cognitive dual-tasking in young and old adults |
title_short | Neural correlates of motor-cognitive dual-tasking in young and old adults |
title_sort | neural correlates of motor-cognitive dual-tasking in young and old adults |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5722310/ https://www.ncbi.nlm.nih.gov/pubmed/29220349 http://dx.doi.org/10.1371/journal.pone.0189025 |
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