A Study of Response Inhibition in Overweight/Obesity People Based on Event-Related Potential

Abstract

ObjectiveTo investigate the characteristics of response inhibition of overweight/obese people, using behavior experiments combine with neural electrophysiological technology and discussing the difference in impulse level between obesity/overweight and normal-weight people through EEG data, questionnaire, and behavior experiment.Method(1) All participants completed the Go/Nogo task; meanwhile, behavior data and 64 channel EEG data were recorded. (2) Participants completed the Stop-Signal task and behavior date was recorded.Results(1) During Go/Nogo task, no significant differences were found in reaction time, omission errors of the Go task between the two groups, while commission errors of the Nogo task of the control group were significantly greater than the overweight/obesity group. (2) About SSRT during the Stop-Signal Task, the interaction of stimulus type (high-calorie food picture, low-calorie food picture) and group (control group, overweight/obesity group) was significant (p = 0.008). (3) No significant differences were found between the two groups in amplitude and latency of N2. About the amplitude of P3, the interaction of task type (Go task, Nogo task), electrode point (Cz, CPz, Pz), and groups were significant (p = 0.041), the control group P3 amplitude was significantly greater than overweight/obesity group during the Nogo task. Regarding about latency of P3, the interaction of group and electrode point were not significant (p = 0.582), but the main effect of task type was significant (p = 0.002).Conclusion(1) In terms of behavioral outcomes, overweight–obese subjects had lower dominant response inhibition and response cessation compared to normal-weight subjects. (2) In terms of EEG results, overweight–obese subjects showed no difference in processing speed and level of conflict monitoring for early inhibitory processing compared to normal-weight subjects, but there was a deficit in behavioral control for late inhibitory processing.

Playing with temptation: Stopping abilities to chocolate are superior, but also more extensive

“…As such, weakened inhibitory control may contribute to overeating. Indeed, deficits in food-related inhibitory control were shown in individuals with obesity (Lavagnino et al, 2016;Liu et al, 2022;Weller et al, 2008;Yang et al, 2018) and overweight (Guerrieri et al, 2008;Houben et al, 2014;Svaldi et al, 2015), in individuals with food addiction symptoms (Rodrigue et al, 2018), in children with loss of control eating or increased body weight (Levitan et al, 2015;Nederkoorn et al, 2006) and in restrained eaters at risk for disinhibition and weight gain (Bartholdy et al, 2016;Nederkoorn et al, 2004;Schroeder et al, 2022).…”

The Association of Obesity and Cardiorespiratory Fitness in Relation to Cognitive Flexibility: An Event-Related Potential Study

“…P3 component, the late positive deflection following the stimulus onset, has been utilized as the index of endogenous cognitive processing involving stimulus classification and attentional resources allocation, with larger P3 amplitude reflecting larger attention resource allocation ( Polich, 2007 ). Notably, P3 amplitudes have been linked to body weights, such that smaller P3 amplitudes have been observed during cognitive tasks tapping cognitive flexibility, attention, and inhibition ( Babiloni et al, 2009 ; Edwards et al, 2018 ; Liu et al, 2022 ), among individuals with heavier body weights. However, Nijs et al (2008 , 2010a , 2010b) conducted a series of food-related studies that showed no significant differences in P3 amplitudes across individuals with different body weights.…”