Transcranial Alternating Current Stimulation Modulates Risky Decision Making in a Frequency-Controlled Experiment

eNeuro. 2017 Dec 11;4(6). pii: ENEURO.0136-17.2017. doi: 10.1523/ENEURO.0136-17.2017

10 Pages Posted: 20 Jul 2018

See all articles by Zachary Yaple

Zachary Yaple

Dept of Psychology, NUS; National Research University Higher School of Economics - Centre for Cognition and Decision Making

Mario Martinez-Saito

National Research University Higher School of Economics - Centre for Cognition and Decision Making

Matteo Feurra

National Research University Higher School of Economics - Centre for Cognition and Decision Making; National Research University Higher School of Economics - School of Psychology

Anna Shestakova

National Research University Higher School of Economics - Centre for Cognition and Decision Making

Vasily Klucharev

National Research University Higher School of Economics

Date Written: June 29, 2017

Abstract

In this study, we investigated the effect of transcranial alternating current stimulation (tACS) on voluntary risky decision making and executive control in humans. Stimulation was delivered online at 5 Hz (θ), 10 Hz (α), 20 Hz (β), and 40 Hz (γ) on the left and right frontal area while participants performed a modified risky decision-making task. This task allowed participants to voluntarily select between risky and certain decisions associated with potential gains or losses, while simultaneously measuring the cognitive control component (voluntary switching) of decision making. The purpose of this experimental design was to test whether voluntary risky decision making and executive control can be modulated with tACS in a frequency-specific manner. Our results revealed a robust effect of a 20-Hz stimulation over the left prefrontal area that significantly increased voluntary risky decision making, which may suggest a possible link between risky decision making and reward processing, underlined by β-oscillatory activity.

Keywords: 20-Hz Stimulation; Frontal Hemisphere; Reward; Risky Decision Making; Task Switching; Transcranial Alternating Current Stimulation

Suggested Citation

Yaple, Zachary and Martinez-Saito, Mario and Feurra, Matteo and Shestakova, Anna and Klucharev, Vasily, Transcranial Alternating Current Stimulation Modulates Risky Decision Making in a Frequency-Controlled Experiment (June 29, 2017). eNeuro. 2017 Dec 11;4(6). pii: ENEURO.0136-17.2017. doi: 10.1523/ENEURO.0136-17.2017, Available at SSRN: https://ssrn.com/abstract=3205385

Zachary Yaple

Dept of Psychology, NUS ( email )

Block AS4, #02-07
9 Arts Link
117570
Singapore

HOME PAGE: http://https://www.hse.ru/en/org/persons/131803552

National Research University Higher School of Economics - Centre for Cognition and Decision Making ( email )

Moscow
Russia

Mario Martinez-Saito

National Research University Higher School of Economics - Centre for Cognition and Decision Making ( email )

Moscow
Russia

Matteo Feurra

National Research University Higher School of Economics - Centre for Cognition and Decision Making ( email )

Moscow
Russia

National Research University Higher School of Economics - School of Psychology ( email )

Moscow
Russia

Anna Shestakova

National Research University Higher School of Economics - Centre for Cognition and Decision Making ( email )

Moscow
Russia

Vasily Klucharev (Contact Author)

National Research University Higher School of Economics ( email )

Myasnitskaya street, 20
Moscow, Moscow 119017
Russia

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