Keyword search (3,448 papers available)


Everyday activity parameters and competence in older adults.

Author(s): Pushkar D, Arbuckle T, Conway M, Chaikelson J, Maag U

Psychol Aging. 1997 Dec;12(4):600-9 Authors: Pushkar D, Arbuckle T, Conway M, Chaikelson J, Maag U

Article GUID: 9416629
Individual differences in trajectory of intellectual development over 45 years of adulthood.

Author(s): Arbuckle TY, Maag U, Pushkar D, Chaikelson JS

Psychol Aging. 1998 Dec;13(4):663-75 Authors: Arbuckle TY, Maag U, Pushkar D, Chaikelson JS

Article GUID: 9883465
Social behavior and off-target verbosity in elderly people.

Author(s): Pushkar D, Basevitz P, Arbuckle T, Nohara-LeClair M, Lapidus S, Peled M

Psychol Aging. 2000 Jun;15(2):361-74 Authors: Pushkar D, Basevitz P, Arbuckle T, Nohara-LeClair M, Lapidus S, Peled M

Article GUID: 10879589
Effect of off-target verbosity on communication efficiency in a referential communication task.

Author(s): Arbuckle TY, Nohara-LeClair M, Pushkar D

Psychol Aging. 2000 Mar;15(1):65-77 Authors: Arbuckle TY, Nohara-LeClair M, Pushkar D

Article GUID: 10755290
Motivation, personality and well-being in older volunteers.

Author(s): Pushkar D, Reis M, Morros M

Int J Aging Hum Dev. 2002;55(2):141-62 Authors: Pushkar D, Reis M, Morros M

Article GUID: 12513036
Off-target verbosity, everyday competence, and subjective well-being.

Author(s): Arbuckle TY, Pushkar D, Bourgeois S, Bonneville L

Gerontology. 2004 Sep-Oct;50(5):291-7 Authors: Arbuckle TY, Pushkar D, Bourgeois S, Bonneville L

Article GUID: 15331857
Behavioural and electrophysiological measures of task switching during single and mixed-task conditions.

Author(s): Goffaux P, Phillips NA, Sinai M, Pushkar D

Biol Psychol. 2006 Jun;72(3):278-90 Authors: Goffaux P, Phillips NA, Sinai M, Pushkar D

Article GUID: 16413655
Autobiographical memory specificity predicts social problem-solving ability in old and young adults.

Author(s): Beaman A, Pushkar D, Etezadi S, Bye D, Conway M

Q J Exp Psychol (Hove). 2007 Sep;60(9):1275-88 Authors: Beaman A, Pushkar D, Etezadi S, Bye D, Conway M

Article GUID: 17676558
Neurophysiological measures of task-set switching: effects of working memory and aging.

Author(s): Goffaux P, Phillips NA, Sinai M, Pushkar D

J Gerontol B Psychol Sci Soc Sci. 2008 Mar;63(2):P57-66 Authors: Goffaux P, Phillips NA, Sinai M, Pushkar D

Article GUID: 18441266
Testing continuity and activity variables as predictors of positive and negative affect in retirement.

Author(s): Pushkar D, Chaikelson J, Conway M, Etezadi J, Giannopoulus C, Li K, Wrosch C

J Gerontol B Psychol Sci Soc Sci. 2010 Jan;65B(1):42-9 Authors: Pushkar D, Chaikelson J, Conway M, Etezadi J, Giannopoulus C, Li K, Wrosch C

Article GUID: 19875749
Longitudinal associations of need for cognition, cognitive activity, and depressive symptomatology with cognitive function in recent retirees.

Author(s): Baer LH, Tabri N, Blair M, Bye D, Li KZ, Pushkar D

J Gerontol B Psychol Sci Soc Sci. 2013 Sep;68(5):655-64 Authors: Baer LH, Tabri N, Blair M, Bye D, Li KZ, Pushkar D

Article GUID: 23213060
Title:Neurophysiological measures of task-set switching: effects of working memory and aging.
Authors:Goffaux P,  Phillips NA,  Sinai M,  Pushkar D
Link:https://www.ncbi.nlm.nih.gov/pubmed/18441266?dopt=Abstract
Category:J Gerontol B Psychol Sci Soc Sci
PMID:18441266
Dept Affiliation: CRDH
1 Department of Psychology, Centre for Research in Human Development, Concordia University, 7141 Sherbrooke Street West, Montréal, Québec, Canada.

Description:

Neurophysiological measures of task-set switching: effects of working memory and aging.

J Gerontol B Psychol Sci Soc Sci. 2008 Mar;63(2):P57-66

Authors: Goffaux P, Phillips NA, Sinai M, Pushkar D

Abstract

We investigated age-related differences in task-switching performance by using behavioral measures and event-related brain potentials. We tested younger and older adults, and we separated older adults into groups with high and low working memory (WM); that is, we separated them into old-high-WM and old-low-WM groups. On average, all participants responded more slowly in mixed-task than in single-task blocks (i.e., reaction time or RT mixing cost). Younger adults and old-high-WM participants had equivalent RT mixing costs and showed larger posterior negative slow-wave activity when preparing for mixed trials than for single-task trials, suggesting that mixed-task trials required trial-to-trial preparation. Old-high-WM participants also showed frontally distributed activity on mixed-task trials, suggesting their use of executive control to offset age-related differences in mixed-task preparation. In contrast, old-low-WM participants had large RT mixing costs and large posterior event-related brain potential negativities during single-task trials, suggesting that they prepare during single- and mixed-task blocks. High WM, therefore, may help older adults offset the age-related difficulties often observed when they are task switching.

PMID: 18441266 [PubMed - indexed for MEDLINE]