Inhibitory control training, Food-related inhibitory control, N2 ERP, Weight, Caloric intake
A cognitive intervention that may reduce weight and caloric intake is inhibitory control training (ICT; having individuals repeatedly withhold dominant responses to unhealthy food images). We conducted a randomized controlled trial where 100 individuals with overweight or obesity were assigned to complete a generic (n = 48) or food-specific ICT (n = 52) training four times per week for four weeks. Weight and caloric intake were ob- tained at baseline, four-weeks, and 12-weeks. Participants also completed high-calorie and neutral go/no-go tasks while N2 event-related potential (ERP) data, a neural indicator of inhibitory control, was measured at all visits. Results from mixed model analyses indicate that neither weight, caloric intake, nor N2 ERP component amplitude towards high-calorie foods changed at post-testing or at the 12-week follow up. Regression analyses suggest that individuals with smaller N2 difference amplitudes to food may show greater weight loss and re- ductions in caloric intake after a generic ICT, while individuals with larger N2 difference amplitudes to food may show greater weight loss and reductions in caloric intake after a food-specific ICT. Overall, multiple food-specific or generic ICT sessions over the course of a four-week period do not affect overall weight loss, caloric intake, or N2 ERP amplitude.
Original Publication Citation
Carbine, K. A., Muir, A. M., Allen, W. D., LeCheminant, J. D., Baldwin, S. A., Jensen, C. D., Kirwan, C. B., & Larson, M. J. (2021). Does inhibitory control training reduce weight and caloric intake in adults with overweight and obesity? A pre-registered, randomized controlled event-related potential (ERP) study. Behaviour Research and Therapy, 136, 103784. https://doi.org/10.1016/j.brat.2020.103784
BYU ScholarsArchive Citation
Carbine, Kaylie A.; Muir, Alexandra M.; Allen, Whitney D.; LeCheminant, James D.; Baldwin, Scott A.; Jensen, Chad D.; Kirwan, C. Brock; and Larson, Michael, "Does inhibitory control training reduce weight and caloric intake in adults with overweight and obesity? A pre-registered, randomized controlled event-related potential (ERP) study" (2020). Faculty Publications. 6478.
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