Individual Differences in Late Positive Potential Amplitude and Theta Power Predict Cue-Induced Eating

Authors

Kyla D Gibney
George Kypriotakis
Francesco Versace

Publication Date

9-1-2023

Journal

Addiction Neuroscience

Abstract

Cue-induced reward-seeking behaviors are regulated by both the affective and cognitive control systems of the brain. This study aimed at investigating how individual differences in affective and cognitive responses to cues predicting food rewards contribute to the regulation of cue-induced eating. We recorded electroencephalogram (EEG) from 59 adults while they viewed emotional and food-related images that preceded the delivery of food rewards (candies) or non-food objects (beads). We measured the amplitude of the late positive potential (LPP) in response to a variety of motivationally relevant images and power in the theta (4-8 Hz) frequency band after candies or beads were dispensed to the participants. We found that individuals with larger LPP responses to food images than to pleasant images (C>P group) ate significantly more during the experiment than those with the opposite response pattern (P>C group,

Keywords

Motivational salience, Cognitive control, Late positive potential, Theta band, Event-related potentials, Time-frequency analysis

Comments

Associated Data

PMID: 37711965