More expertise for a better perspective: Task and strategy-driven adaptive neurofunctional reorganization for word production in high-performing older adults.

TitleMore expertise for a better perspective: Task and strategy-driven adaptive neurofunctional reorganization for word production in high-performing older adults.
Publication TypeJournal Article
Year of Publication2018
AuthorsMethqal, I, Marsolais, Y, Wilson, MA, Monchi, O, Joanette, Y
JournalNeuropsychol Dev Cogn B Aging Neuropsychol Cogn
Pagination1-32
Date Published2018 Jan 16
ISSN1744-4128
Abstract

The suggestion that neurofunctional reorganization may contribute to preserved language abilities is still emerging in aging studies. Some of these abilities, such as verbal fluency (VF), are not unitary but instead rely on different strategic processes that are differentially changed with age. Younger (n = 13) and older adults (n = 13) carried out an overt self-paced semantic and orthographic VF tasks within mixed fMRI design. Our results suggest that patterns of brain activation sustaining equivalent performances could be underpinned by different strategies facing brain changes during healthy aging. These main findings suggest that temporally mediated semantic clustering and frontally mediated orthographic switching were driven by evolutive neurofunctional resources in high-performing older adults. These age-related activation changes can appear to be compatible with the idea that unique neural patterns expressing distinctive cognitive strategies are necessary to support older adults' performance on VF tasks.

DOI10.1080/13825585.2017.1423021
Alternate JournalNeuropsychol Dev Cogn B Aging Neuropsychol Cogn
PubMed ID29334837