File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Bilingualism protects anterior temporal lobe integrity in aging

TitleBilingualism protects anterior temporal lobe integrity in aging
Authors
Issue Date2014
PublisherElsevier. The Journal's web site is located at http://www.elsevier.com/locate/neuaging
Citation
Neurobiology of Aging, 2014, v. 35 n. 9, p. 2126-2133 How to Cite?
AbstractCerebral gray-matter volume (GMV) decreases in normal aging but the extent of the decrease may be experience-dependent. Bilingualism may be one protective factor and in this article we examine its potential protective effect on GMV in a region that shows strong age-related decreases-the left anterior temporal pole. This region is held to function as a conceptual hub and might be expected to be a target of plastic changes in bilingual speakers because of the requirement for these speakers to store and differentiate lexical concepts in 2 languages to guide speech production and comprehension processes. In a whole brain comparison of bilingual speakers (n = 23) and monolingual speakers (n = 23), regressing out confounding factors, we find more extensive age-related decreases in GMV in the monolingual brain and significantly increased GMV in left temporal pole for bilingual speakers. Consistent with a specific neuroprotective effect of bilingualism, region of interest analyses showed a significant positive correlation between naming performance in the second language and GMV in this region. The effect appears to be bilateral though because there was a nonsignificantly different effect of naming performance on GMV in the right temporal pole. Our data emphasize the vulnerability of the temporal pole to normal aging and the value of bilingualism as both a general and specific protective factor to GMV decreases in healthy aging.
Persistent Identifierhttp://hdl.handle.net/10722/198569
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorABUTALEBI, Jen_US
dc.contributor.authorCanini, Men_US
dc.contributor.authorDella Rosa, PHen_US
dc.contributor.authorSheung, LPen_US
dc.contributor.authorGreen, DWen_US
dc.contributor.authorWeekes, BSen_US
dc.date.accessioned2014-07-07T07:57:13Z-
dc.date.available2014-07-07T07:57:13Z-
dc.date.issued2014en_US
dc.identifier.citationNeurobiology of Aging, 2014, v. 35 n. 9, p. 2126-2133en_US
dc.identifier.urihttp://hdl.handle.net/10722/198569-
dc.description.abstractCerebral gray-matter volume (GMV) decreases in normal aging but the extent of the decrease may be experience-dependent. Bilingualism may be one protective factor and in this article we examine its potential protective effect on GMV in a region that shows strong age-related decreases-the left anterior temporal pole. This region is held to function as a conceptual hub and might be expected to be a target of plastic changes in bilingual speakers because of the requirement for these speakers to store and differentiate lexical concepts in 2 languages to guide speech production and comprehension processes. In a whole brain comparison of bilingual speakers (n = 23) and monolingual speakers (n = 23), regressing out confounding factors, we find more extensive age-related decreases in GMV in the monolingual brain and significantly increased GMV in left temporal pole for bilingual speakers. Consistent with a specific neuroprotective effect of bilingualism, region of interest analyses showed a significant positive correlation between naming performance in the second language and GMV in this region. The effect appears to be bilateral though because there was a nonsignificantly different effect of naming performance on GMV in the right temporal pole. Our data emphasize the vulnerability of the temporal pole to normal aging and the value of bilingualism as both a general and specific protective factor to GMV decreases in healthy aging.en_US
dc.languageengen_US
dc.publisherElsevier. The Journal's web site is located at http://www.elsevier.com/locate/neuagingen_US
dc.relation.ispartofNeurobiology of Agingen_US
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in <Journal title>. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in PUBLICATION, [VOL#, ISSUE#, (DATE)] DOI#en_US
dc.titleBilingualism protects anterior temporal lobe integrity in agingen_US
dc.typeArticleen_US
dc.identifier.emailWeekes, BS: weekes@hku.hken_US
dc.identifier.authorityWeekes, BS=rp01390en_US
dc.identifier.doi10.1016/j.neurobiolaging.2014.03.010en_US
dc.identifier.pmid24721820-
dc.identifier.hkuros230019en_US
dc.identifier.volume35en_US
dc.identifier.issue9en_US
dc.identifier.spage2126en_US
dc.identifier.epage2133en_US
dc.identifier.isiWOS:000338195100023-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats