Got chocolate? Bilateral prefrontal cortex stimulation augments chocolate consumption

Appetite
Chan ToRebecca L Ashare

Abstract

Understanding the mechanisms behind exerting self-control may reveal why health behaviors are resistant to change. Activity in the right inferior frontal gyrus (rIFG) plays a role in self-control processes and may be modulated using transcranial direct current stimulation (tDCS). In this early phase behavioral research study, we investigated whether anodal stimulation over the rIFG with cathodal stimulation over the left IFG (versus sham) reduced chocolate consumption. Twenty-three healthy females (ages 18-35) completed two tDCS sessions (2.0 mA vs. sham; order counterbalanced) in a within-subject, double-blind, randomized design with a 4-week washout. Participants were self-reported "chocolate cravers" and restrained eaters. Self-report assessments on disinhibited eating were completed at intake. Delay discounting and inhibitory control were assessed at the remaining visits. During stimulation, participants completed an inhibitory control training task (chocolate go/no-go task) and were randomized to the chocolate no-go condition (inhibit all responses to chocolate cues) or the control condition (inhibit responses to chocolate cues on half the trials). Following stimulation, participants completed a 15-min chocolate "taste tes...Continue Reading

Citations

Dec 21, 2020·Surgery for Obesity and Related Diseases : Official Journal of the American Society for Bariatric Surgery·David B SarwerKelly C Allison
Nov 18, 2021·Obesity Reviews : an Official Journal of the International Association for the Study of Obesity·Jordan D BeaumontMartin J Barwood
Dec 5, 2021·Reviews in Endocrine & Metabolic Disorders·Theresa Ester, Stephanie Kullmann

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