The Effect of tES on a Cognitive Training

Status Completed

Clinical Trial Summary

The aim of this study is to investigate the effect of a transcranial electrical stimulation (tES) on a cognitive training in healthy elderly and memory impaired participants. In order to assess these effects different memory and attention tasks will be performed before and after the training as well as after 6 and 12 months.

Clinical Trial Description

As other studies have shown, transcranial direct current stimulation (tDCS) can improve the outcome of memory tasks in Alzheimer's disease (AD), mild cognitive impairment (MCI) and healthy older adults. Only few studies have investigated the effect of the combination of tDCS and a simultaneous cognitive training and to the investigators' knowledge there is no comparison of tDCS and transcranial alternating current (tACS) effects during a cognitive training or for different populations. With results from this study existing trainings can be optimised. In total 180 participants are planned to be included in this study. This number is based on a g*Power estimation. According to this estimation the study has to include 153 participants. Regarding similar studies the investigators assume a dropout rate of 15% resulting in a total of 180 participants (60 AD patients, 60 MCI patients and 60 healthy older adults) This number should make it possible to find the expected mild effects reported in literature.

A mixed-effects ANOVA model with the between-subjects factor stimulation (tDCS, tACS, sham) and the within-subjects factor time will be computed. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03475446
Study type	Interventional
Source	University of Bern
Contact
Status	Completed
Phase	N/A
Start date	January 15, 2018
Completion date	December 31, 2019

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