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Report for Clinical Trial NCT02110056

Developed by Shray Alag, 2020.
SNP Clinical Trial Gene

Modulation of Visual-Spatial Learning in Healthy Older Adults by Transcranial Direct Current Stimulation - Proof of Principle and Mechanisms

The aim of this study is to investigate whether a combination of intensive training of visual-spatial abilities (LOCATO task) with anodal transcranial direct current stimulation (tDCS) leads to an improvement of learning and memory in healthy older adults and to examine the underlying neuronal mechanism.

NCT02110056 Healthy Older Adults

2 Interventions

Name: tDCS

Description: transcranial direct current stimulation (tDCS)
Type: Device
Group Labels: 2

training + sham stimulation training + tDCS

Name: training

Description: intensive training of visual-spatial abilities (in LOCATO task)
Type: Behavioral
Group Labels: 2

training + sham stimulation training + tDCS


Primary Outcomes

Description: Investigation whether the combination of intensive visual-spatial training (LOCATO task) and tDCS leads to an improvement of visual-spatial learning and memory measured by performance in LOCATO task after end of a 3 day training period compared to sham stimulation.

Measure: Performance in LOCATO task (Visual-Spatial learning and memory) after a combination of intensive visual-spatial training and tDCS

Time: immediately after the end of a 3 day training period in tDCS condition compared to sham condition

Secondary Outcomes

Description: long term effects measured by performance in LOCATO task after end of training and after 1 month compared to control condition

Measure: long term effects

Time: after 1 month vs baseline

Description: Connectivity (measured by resting-state fMRT and correlation analysis) at baseline compared to end of 3 day period of training

Measure: functional changes: Connectivity

Time: after end of 3-day period of training vs baseline

Description: measured by transcranial magnetic stimulation (TMS) at baseline

Measure: cortical excitability

Time: at baseline

Description: quality of life as measured by standardized questionaire at baseline compared to quality of life measured 1 month after intervention (training and stimulation vs. training and sham-stimualtion)

Measure: Quality of life

Time: after 1 month vs baseline

Description: memory performance tested at baseline compared to memory performance after the end of a 3-day cognitive training period and after 1 month (posttraining) in training and stimulation vs. training and sham stimulation

Measure: memory

Time: immediately after end of 3-day of cognitive training, after 1 month vs. baseline

Description: affective state measured at baseline compared to affective state measured after the end of a 3-day cognitve training period and after 1 month (posttraining) in training and stimulation vs. training and sham stimulation

Measure: affective state

Time: immediately after the end of 3-day cognitive training, after 1 month vs. baseline

Description: To assess predictors of positive reaction to brain stimulation, genotyping of several learning related polymorphisms will be performed (i.e., APOE, BDNF Val66Met, COMT Val158Met).

Measure: genotyping of learning related polymorphisms

Time: once

Purpose: Treatment

Allocation: Randomized

Crossover Assignment


There are 2 SNPs

SNPs


1 V158M

To assess predictors of positive reaction to brain stimulation, genotyping of several learning related polymorphisms will be performed (i.e., APOE, BDNF Val66Met, COMT Val158Met).. Inclusion Criteria (old healthy controls): - right handedness - unobtrusive neuropsychological screening - age: 50-90 years Exclusion Criteria: - severe internal or psychiatric disease - epilepsy - other severe neurological diseases, e.g. --- Val66Met --- --- Val158Met ---


2 V66M

To assess predictors of positive reaction to brain stimulation, genotyping of several learning related polymorphisms will be performed (i.e., APOE, BDNF Val66Met, COMT Val158Met).. Inclusion Criteria (old healthy controls): - right handedness - unobtrusive neuropsychological screening - age: 50-90 years Exclusion Criteria: - severe internal or psychiatric disease - epilepsy - other severe neurological diseases, e.g. --- Val66Met ---



HPO Nodes