Narrative Discourse in Young and Older Adults: Behavioral and NIRS Analyses

Discourse comprehension is at the core of communication capabilities, making it an important component of elderly populations’ quality of life. The aim of this study is to evaluate changes in discourse comprehension and the underlying brain activity. Thirty-six participants read short stories and an...

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Main Authors: Charles-Olivier Martin, Stéphanie Pontbriand-Drolet, Valérie Daoust, Eric Yamga, Mahnoush Amiri, Lilian C. Hübner, Bernadette Ska
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-03-01
Series:Frontiers in Aging Neuroscience
Subjects:
Online Access:http://journal.frontiersin.org/article/10.3389/fnagi.2018.00069/full
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author Charles-Olivier Martin
Charles-Olivier Martin
Stéphanie Pontbriand-Drolet
Stéphanie Pontbriand-Drolet
Valérie Daoust
Valérie Daoust
Eric Yamga
Eric Yamga
Mahnoush Amiri
Mahnoush Amiri
Lilian C. Hübner
Bernadette Ska
Bernadette Ska
author_facet Charles-Olivier Martin
Charles-Olivier Martin
Stéphanie Pontbriand-Drolet
Stéphanie Pontbriand-Drolet
Valérie Daoust
Valérie Daoust
Eric Yamga
Eric Yamga
Mahnoush Amiri
Mahnoush Amiri
Lilian C. Hübner
Bernadette Ska
Bernadette Ska
author_sort Charles-Olivier Martin
collection DOAJ
description Discourse comprehension is at the core of communication capabilities, making it an important component of elderly populations’ quality of life. The aim of this study is to evaluate changes in discourse comprehension and the underlying brain activity. Thirty-six participants read short stories and answered related probes in three conditions: micropropositions, macropropositions and situation models. Using near-infrared spectroscopy (NIRS), the variation in oxyhemoglobin (HbO2) and deoxyhemoglobin (HbR) concentrations was assessed throughout the task. The results revealed that the older adults performed with equivalent accuracy to the young ones at the macroproposition level of discourse comprehension, but were less accurate at the microproposition and situation model levels. Similar to what is described in the compensation-related utilization of neural circuits hypothesis (CRUNCH) model, older participants tended to have greater activation in the left dorsolateral prefrontal cortex while reading in all conditions. Although it did not enable them to perform similarly to younger participants in all conditions, this over-activation could be interpreted as a compensation mechanism.
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spelling doaj.art-7734a34792ed46cb8b43642c11494e8a2022-12-21T18:25:32ZengFrontiers Media S.A.Frontiers in Aging Neuroscience1663-43652018-03-011010.3389/fnagi.2018.00069286846Narrative Discourse in Young and Older Adults: Behavioral and NIRS AnalysesCharles-Olivier Martin0Charles-Olivier Martin1Stéphanie Pontbriand-Drolet2Stéphanie Pontbriand-Drolet3Valérie Daoust4Valérie Daoust5Eric Yamga6Eric Yamga7Mahnoush Amiri8Mahnoush Amiri9Lilian C. Hübner10Bernadette Ska11Bernadette Ska12Faculty of Medicine, Université de Montréal, Montreal, QC, CanadaCentre de Recherche, Institut Universitaire de Gériatrie de Montréal, Montreal, QC, CanadaFaculty of Medicine, Université de Montréal, Montreal, QC, CanadaCentre de Recherche, Institut Universitaire de Gériatrie de Montréal, Montreal, QC, CanadaFaculty of Medicine, Université de Montréal, Montreal, QC, CanadaCentre de Recherche, Institut Universitaire de Gériatrie de Montréal, Montreal, QC, CanadaFaculty of Medicine, Université de Montréal, Montreal, QC, CanadaCentre de Recherche, Institut Universitaire de Gériatrie de Montréal, Montreal, QC, CanadaCentre de Recherche, Institut Universitaire de Gériatrie de Montréal, Montreal, QC, CanadaGénie Biomédical, École Polytechnique de Montréal, Montreal, QC, CanadaDepartamento de Linguistica, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, BrazilFaculty of Medicine, Université de Montréal, Montreal, QC, CanadaCentre de Recherche, Institut Universitaire de Gériatrie de Montréal, Montreal, QC, CanadaDiscourse comprehension is at the core of communication capabilities, making it an important component of elderly populations’ quality of life. The aim of this study is to evaluate changes in discourse comprehension and the underlying brain activity. Thirty-six participants read short stories and answered related probes in three conditions: micropropositions, macropropositions and situation models. Using near-infrared spectroscopy (NIRS), the variation in oxyhemoglobin (HbO2) and deoxyhemoglobin (HbR) concentrations was assessed throughout the task. The results revealed that the older adults performed with equivalent accuracy to the young ones at the macroproposition level of discourse comprehension, but were less accurate at the microproposition and situation model levels. Similar to what is described in the compensation-related utilization of neural circuits hypothesis (CRUNCH) model, older participants tended to have greater activation in the left dorsolateral prefrontal cortex while reading in all conditions. Although it did not enable them to perform similarly to younger participants in all conditions, this over-activation could be interpreted as a compensation mechanism.http://journal.frontiersin.org/article/10.3389/fnagi.2018.00069/fullagingdiscourse comprehensioncerebral plasticitylanguageNIRS
spellingShingle Charles-Olivier Martin
Charles-Olivier Martin
Stéphanie Pontbriand-Drolet
Stéphanie Pontbriand-Drolet
Valérie Daoust
Valérie Daoust
Eric Yamga
Eric Yamga
Mahnoush Amiri
Mahnoush Amiri
Lilian C. Hübner
Bernadette Ska
Bernadette Ska
Narrative Discourse in Young and Older Adults: Behavioral and NIRS Analyses
Frontiers in Aging Neuroscience
aging
discourse comprehension
cerebral plasticity
language
NIRS
title Narrative Discourse in Young and Older Adults: Behavioral and NIRS Analyses
title_full Narrative Discourse in Young and Older Adults: Behavioral and NIRS Analyses
title_fullStr Narrative Discourse in Young and Older Adults: Behavioral and NIRS Analyses
title_full_unstemmed Narrative Discourse in Young and Older Adults: Behavioral and NIRS Analyses
title_short Narrative Discourse in Young and Older Adults: Behavioral and NIRS Analyses
title_sort narrative discourse in young and older adults behavioral and nirs analyses
topic aging
discourse comprehension
cerebral plasticity
language
NIRS
url http://journal.frontiersin.org/article/10.3389/fnagi.2018.00069/full
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