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• W4210416494 abstract "<sec> <title>BACKGROUND</title> To prevent age-related cognitive impairment, many intervention programs offer exercises targeting different central cognitive processes. However, the effects of different process-based training programs are rarely compared within equivalent experimental designs. </sec> <sec> <title>OBJECTIVE</title> Using a randomized double-blind controlled trial, this project aims to examine and compare the impact of 2 process-based interventions, inhibition and updating, on the cognition and brain of older adults. </sec> <sec> <title>METHODS</title> A total of 90 healthy older adults were randomly assigned to 1 of 3 training conditions: (1) inhibition (Stroop-like exercises), (2) updating (N-back-type exercises), and (3) control active (quiz game exercise). Training was provided in 12 half-hour sessions over 4 weeks. First, the performance gain observed will be measured on the trained tasks. We will then determine the extent of transfer of gain on (1) untrained tasks that rely on the same cognitive process, (2) complex working memory (WM) measurements hypothesized to involve 1 of the 2 trained processes, and (3) virtual reality tasks that were designed to mimic real-life situations that require WM. We will assess whether training increases cortical volume given that the volume of the cortex is determined by cortical area and thickness in regions known to be involved in WM or changes task-related brain activation patterns measured with functional magnetic resonance imaging. Dose effects will be examined by measuring outcomes at different time points during training. We will also determine whether individual characteristics moderate the effect of training on cognitive and cerebral outcomes. Finally, we will evaluate whether training reduces the age-related deficit on transfer and brain outcomes, by comparing study participants to a group of 30 younger adults. </sec> <sec> <title>RESULTS</title> The project was funded in January 2017; enrollment began in October 2017 and data collection was completed in April 2019. Data analysis has begun in June 2020 and the first results should be published by the end of 2020 or early 2021. </sec> <sec> <title>CONCLUSIONS</title> The results of this study will help understand the relative efficacy of 2 attentional control interventions on the cognition and the brain of older adults, as well as the moderating role of individual characteristics on training efficiency and transfer. </sec> <sec> <title>CLINICALTRIAL</title> ClinicalTrials.gov NCT03532113; https://clinicaltrials.gov/ct2/show/NCT03532113 </sec> <sec> <title>INTERNATIONAL REGISTERED REPORT</title> DERR1-10.2196/20430 </sec>" @default.
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• W4210416494 date "2020-05-19" @default.
• W4210416494 modified "2023-09-23" @default.
• W4210416494 title "Assessing the Effect of Training on the Cognition and Brain of Older Adults: Protocol for a Three-Arm Randomized Double-Blind Controlled Trial (ACTOP) (Preprint)" @default.
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• W4210416494 doi "https://doi.org/10.2196/preprints.20430" @default.
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