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ERIC Number: EJ949877
Record Type: Journal
Publication Date: 2011-Dec
Pages: 11
Abstractor: As Provided
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0898-929X
Two Hemispheres for Better Memory in Old Age: Role of Executive Functioning
Angel, Lucie; Fay, Severine; Bouazzaoui, Badiaa; Isingrini, Michel
Journal of Cognitive Neuroscience, v23 n12 p3767-3777 Dec 2011
This experiment explored the functional significance of age-related hemispheric asymmetry reduction associated with episodic memory and the cognitive mechanisms that mediate this brain pattern. ERPs were recorded while young and older adults performed a word-stem cued-recall task. Results confirmed that the parietal old/new effect was of larger latency and reduced magnitude and less lateralized in the older group than the young group. Correlational and regression analyses indicated that the degree of laterality of brain activity determines the accuracy of memory performance and mediates age-related differences in memory performance among older participants. They also confirmed a cascade model in which the individual level of executive functioning of older adults mediates age-related differences in the degree of lateralization of brain activity, which in turn mediates age-related differences in memory performance.
MIT Press. 55 Hayward Street, Cambridge, MA 02142. Tel: 617-253-2889; Fax: 617-253-1709; e-mail: journals-orders@mit.edu; Web site: http://www.mitpressjournals.org/loi/jocn
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A