Maxime Lussier1,2, Kathia Saillant2,3,4, Tudor Vrinceanu2,3,4, Carol Hudon5,6, Louis Bherer1,2,4. 1. Department of Medicine, Université de Montréal, Montréal H3C 3J7, Canada. 2. Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal H3W 1W5, Canada. 3. Department of Psychologie, Université du Québec à Montréal, Montréal H3C 3P8, Canada. 4. EPIC Center, Montreal Heart Institute, Montreal H1T 1N6, Canada. 5. School of Psychology, Université Laval, Québec G1V 0A6, Canada. 6. CERVO Brain Research Centre, Québec G1J 2G3, Canada.
Abstract
OBJECTIVE: The objective of this study is to provide normative data for a tablet-based dual-task assessment in older adults without cognitive deficits. METHOD: In total, 264 participants aged between 60 and 90 years, French and English-speaking, were asked to perform two discrimination tasks, alone and concurrently. The participants had to answer as fast as possible to one or two images appearing in the center of the tablet by pressing to the corresponding buttons. Normative data are provided for reaction time (RT), coefficient of variation, and accuracy. Analyses of variance were performed by trial types (single-pure, single-mixed, dual-mixed), and linear regressions assessed the relationship between performance and sociodemographic characteristics. RESULTS: The participants were highly educated and a large proportion of them were women (73.9%). The accuracy on the task was very high across all blocks. RT data revealed both a task-set cost and a dual-task cost between the blocks. Age was associated with slower RT and with higher coefficient of variability. Men were significantly slower on dual-mixed trials, but their coefficient of variability was lower on single-pure trials. Education was not associated with performance. CONCLUSIONS: This study provides normative data for a tablet-based dual-task assessment in older adults without cognitive impairment, which was lacking. All participants completed the task with good accuracy in less than 15 minutes and thus, the task is transferable to clinical and research settings.
OBJECTIVE: The objective of this study is to provide normative data for a tablet-based dual-task assessment in older adults without cognitive deficits. METHOD: In total, 264 participants aged between 60 and 90 years, French and English-speaking, were asked to perform two discrimination tasks, alone and concurrently. The participants had to answer as fast as possible to one or two images appearing in the center of the tablet by pressing to the corresponding buttons. Normative data are provided for reaction time (RT), coefficient of variation, and accuracy. Analyses of variance were performed by trial types (single-pure, single-mixed, dual-mixed), and linear regressions assessed the relationship between performance and sociodemographic characteristics. RESULTS: The participants were highly educated and a large proportion of them were women (73.9%). The accuracy on the task was very high across all blocks. RT data revealed both a task-set cost and a dual-task cost between the blocks. Age was associated with slower RT and with higher coefficient of variability. Men were significantly slower on dual-mixed trials, but their coefficient of variability was lower on single-pure trials. Education was not associated with performance. CONCLUSIONS: This study provides normative data for a tablet-based dual-task assessment in older adults without cognitive impairment, which was lacking. All participants completed the task with good accuracy in less than 15 minutes and thus, the task is transferable to clinical and research settings.
Authors: Kirk I Erickson; Stanley J Colcombe; Ruchika Wadhwa; Louis Bherer; Matthew S Peterson; Paige E Scalf; Arthur F Kramer Journal: Neuroimage Date: 2005-08-16 Impact factor: 6.556
Authors: O Beauchet; C Annweiler; V Dubost; G Allali; R W Kressig; S Bridenbaugh; G Berrut; F Assal; F R Herrmann Journal: Eur J Neurol Date: 2009-03-31 Impact factor: 6.089
Authors: Manuel M Montero-Odasso; Yanina Sarquis-Adamson; Mark Speechley; Michael J Borrie; Vladimir C Hachinski; Jennie Wells; Patricia M Riccio; Marcelo Schapira; Ervin Sejdic; Richard M Camicioli; Robert Bartha; William E McIlroy; Susan Muir-Hunter Journal: JAMA Neurol Date: 2017-07-01 Impact factor: 18.302