Beta Power May Mediate the Effect of Gamma-TACS on Motor Performance

Beta Power May Mediate the Effect of Gamma-TACS on Motor Performance

Abstract

Transcranial alternating current stimulation (tACS) is becoming an important method in the field of motor rehabilitation because of its ability to non-invasively influence ongoing brain oscillations at arbitrary frequencies. However, substantial variations in its effect across individuals are reported, making tACS a currently unreliable treatment tool. One reason for this variability is the lack of knowledge about the exact way tACS entrains and interacts with ongoing brain oscillations. The present crossover stimulation study on 20 healthy subjects contributes to the understanding of cross-frequency effects of gamma (70 Hz) tACS over the contralateral motor cortex by providing empirical evidence which is consistent with a role of low- (12~-20 Hz) and high- (20-~30 Hz) beta power as a mediator of gamma-tACS on motor performance.

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Authors
  • Mastakouri, Atalanti A.
  • Schölkopf, Bernhard
  • Grosse-Wentrup, Moritz
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Shortfacts
Category
Paper in Conference Proceedings or in Workshop Proceedings (Paper)
Event Title
The Annual International Conference of the IEEE Engineering in Medicine and Biology Society 2019 (EMBC)
Divisions
Neuroinformatics
Event Location
Berlin
Event Type
Conference
Event Dates
23.-27.7.2019
Date
24 July 2019
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