DE eng

Search in the Catalogues and Directories

Hits 1 – 9 of 9

1
Brain network activity in monolingual and bilingual older adults
Grady, Cheryl L.; Luk, Gigi; Craik, Fergus I.M.. - : Elsevier BV, 2015
BASE
Show details
2
The effect of lifelong bilingualism on regional grey and white matter volume
Abstract: Lifelong bilingualism is associated with the delayed diagnosis of dementia, suggesting bilingual experience is relevant to brain health in aging. While the effects of bilingualism on cognitive functions across the lifespan are well documented, less is known about the neural substrates underlying differential behavior. It is clear that bilingualism affects brain regions that mediate language abilities and that these regions are at least partially overlapping with those that exhibit age-related decline. Moreover, the behavioural advantages observed in bilingualism are generally found in executive function performance, suggesting that the frontal lobes may also be sensitive to bilingualism, which exhibit volume reductions with age. The current study investigated structural differences in the brain of lifelong bilingual older adults (n = 14, mean age = 70.4) compared with older monolinguals (n = 14,mean age= 70.6). We employed two analytic approaches: 1) we examined global differences in grey and white matter volumes; and, 2) we examined local differences in volume and cortical thickness of specific regions of interest previously implicated in bilingual/monolingual comparisons (temporal pole) or in aging (entorhinal cortex and hippocampus). We expected bilinguals would exhibit greater volume of the frontal lobe and temporal lobe (grey and white matter), given the importance of these regions in executive and language functions, respectively. We further hypothesized that regions in the medial temporal lobe, which demonstrate early changes in aging and exhibit neural pathology in dementia, would be more preserved in the bilingual group. As predicted, bilinguals exhibit greater frontal lobe white matter compared with monolinguals. Moreover, increasing age was related to decreasing temporal pole cortical thickness in the monolingual group, but no such relationship was observed for bilinguals. Finally, Stroop task performance was positively correlated with frontal lobe white matter, emphasizing the importance of preserved white matter in maintaining executive function in aging. These results underscore previous findings implicating an association between bilingualism and preserved frontal and temporal lobe function in aging. ; Accepted Manuscript
URL: https://doi.org/10.1016/j.brainres.2015.02.034
http://nrs.harvard.edu/urn-3:HUL.InstRepos:17491845
BASE
Hide details
3
Cognitive Reserve in Parkinson’s Disease: The Effects of Welsh-English Bilingualism on Executive Function
In: Department of English (2015)
BASE
Show details
4
Differential Allocation of Attention During Speech Perception in Monolingual and Bilingual Listeners
BASE
Show details
5
Lexical Selection Differences between Monolingual and Bilingual Listeners
BASE
Show details
6
Bilingualism as a Model for Multitasking
BASE
Show details
7
Bilingualism and the Development of Executive Function: The Role of Attention
BASE
Show details
8
Cognitive Reserve in Parkinson's Disease: The Effects of Welsh-English Bilingualism on Executive Function
Hindle, John V.; Martin-Forbes, Pamela A.; Bastable, Alexandra J. M.. - : Hindawi Publishing Corporation, 2015
BASE
Show details
9
Attention During Visual Search: The Benefit of Bilingualism
In: Education Publications (2015)
BASE
Show details

Catalogues
0
0
0
0
0
0
0
Bibliographies
0
0
0
0
0
0
0
0
0
Linked Open Data catalogues
0
Online resources
0
0
0
0
Open access documents
9
0
0
0
0
© 2013 - 2024 Lin|gu|is|tik | Imprint | Privacy Policy | Datenschutzeinstellungen ändern