High-definition transcranial direct current stimulation (HD-tDCS) of left dorsolateral prefrontal cortex affects performance in Balloon Analogue Risk Task (BART)

Brain and Behavior
Heng GuoXichao Zhang

Abstract

Studies on risk preferences have long been of great concern and have examined the neural basis underlying risk-based decision making. However, studies using conventional transcranial direct current stimulation (tDCS) revealed that bilateral stimulation could change risk propensity with limited evidence of precisely focalized unilateral high-definition transcranial direct current stimulation (HD-tDCS). The aim of this experiment was to investigate the effect of HD-tDCS focalizing the left dorsal lateral prefrontal cortex (DLPFC) on risk-taking behavior during the Balloon Analogue Risk Task (BART). This study was designed as a between-subject, single-blind, sham-controlled experiment. University students were randomly assigned to three groups: the anodal group (F3 anode, AF3, F1, F5, FC3 returned), the cathodal group (F3 cathodal, AF3, F1, F5, FC3 returned) and the sham group. Subsequently, 1.5-mA 20-min HD-tDCS was applied during the BART, and the Positive Affect and Negative Affect Scale (PANAS), the Sensation Seeking Scale-5 (SSS-5), and the Behavioral Inhibition System and Behavioral Approach System scale (BIS/BAS) were measured as control variables. The cathodal group earned less total money than the sham group, and no signi...Continue Reading

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Citations

Aug 11, 2018·The Journal of ECT·Dennis Q Truong, Marom Bikson
May 18, 2020·Psychiatry and Clinical Neurosciences·Ali KhaleghiMohammad Reza Mohammadi
Dec 25, 2019·Cognitive, Affective & Behavioral Neuroscience·Jessica S FlanneryMatthew T Sutherland
Nov 13, 2019·Progress in Neuro-psychopharmacology & Biological Psychiatry·Juliana Teti MayerDjamila Bennabi
Aug 19, 2021·Behavior Research Methods·Jeff Coon, Michael D Lee

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