Limited Benefits of Heterogeneous Dual-Task Training on Transfer Effects in Older Adults

Maxime Lussier 1, 2 Philippe Brouillard 2 Louis Bherer 2
1 Phoenix - Programming Language Technology For Communication Services
LaBRI - Laboratoire Bordelais de Recherche en Informatique, Inria Bordeaux - Sud-Ouest, EA4136 - Handicap et système nerveux :Action, communication, interaction: rétablissement de la fonction et de la participation [Bordeaux]
Abstract : Objectives: It has often been reported that cognitive training has limited transfer effects. The present study addresses training context variability as a factor that could increase transfer effects, as well as the manifestation through time of transfer effects. Method: Fifty-eight older adults were assigned to an active placebo or two dual-task training conditions, one in which the training context varies between sessions (heterogeneous training) and the other in a fixed training context (homogeneous training). Transfer was assessed with near and far-modality transfer tasks. Results: Results show that heterogeneous and homogeneous training led to larger near-modality transfer effects than an active placebo (computer lessons). Transfer effects were roughly comparable in both training groups, but heterogeneous training led to a steeper improvement of the dual-task coordination learning curve within training sessions. Also, results indicated that dual-task cost did not improve in the active placebo group from the pre- to the post-training sessions. Discussion: Heterogeneous training showed modest advantages over homogeneous training. Results also suggest that transfer effects on dual-task cost induced by training take place early on in the post-training session. These findings provide valuable insights on benefits arising from variability in the training protocol for maximizing transfer effects.
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Submitted on : Thursday, December 10, 2015 - 1:35:39 PM
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Maxime Lussier, Philippe Brouillard, Louis Bherer. Limited Benefits of Heterogeneous Dual-Task Training on Transfer Effects in Older Adults. Journals of Gerontology, Series B, Oxford University Press (OUP), 2015, ⟨10.1093/geronb/gbv105⟩. ⟨hal-01241340⟩



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