Explicit and implicit devaluation effects of food-specific response inhibition training

Tzavella, Loukia ORCID: https://orcid.org/0000-0002-1463-9396 and Chambers, Christopher D. ORCID: https://orcid.org/0000-0001-6058-4114 2023. Explicit and implicit devaluation effects of food-specific response inhibition training. Journal of Cognition 6 (1) , 10. 10.5334/joc.256

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Abstract

The overvaluation of reward-associated stimuli such as energy-dense foods can drive compulsive eating behaviours, including overeating. Previous research has shown that training individuals to inhibit their responses towards appetitive stimuli can lead to their devaluation, providing a potential avenue for behaviour change. Over two preregistered experiments, we investigated whether training participants to inhibit their responses to specific foods would be effective in reducing their evaluations when these were assessed using both explicit and implicit measures. Participants completed an online session of go/no-go training with energy-dense foods that were consistently associated with either responding (go) or inhibiting a response (no-go). An ‘explicit’ devaluation effect was expected as a reduction in self-reported liking from pre-to post-training for no-go items compared to both go items and foods that were not presented during training (untrained items). An ‘implicit’ devaluation effect was then measured using the affective priming paradigm, by comparing differences in reaction times for congruent and incongruent trials (i.e., priming effects) between food primes. Experiment 1 revealed conclusive evidence for small-to-medium devaluation effects both in terms of explicit ratings and priming effects. We also observed that the priming effect for no-go items was close to zero. Experiment 2 successfully replicated most of the preregistered and exploratory outcomes from Experiment 1 except for the priming effect for untrained items. Potential explanations for this discrepancy are discussed but overall, these findings provide further support for a devaluation effect of response inhibition training. To our knowledge, our study provides the first evidence that training-induced devaluation can potentially be captured by affective priming measures, but more research is needed to further assess their sensitivity before they can be used to elucidate the mechanisms of action underlying devaluation effects.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Psychology Cardiff University Brain Research Imaging Centre (CUBRIC)
Publisher:	Ubiquity Press
ISSN:	2514-4820
Funders:	ESRC
Date of First Compliant Deposit:	17 January 2023
Date of Acceptance:	19 December 2022
Last Modified:	15 Jun 2023 16:55
URI:	https://orca.cardiff.ac.uk/id/eprint/155973

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