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Measuring food-related attentional bias

Citation

Franja, S and McCrae, AE and Jahnel, T and Gearhardt, AN and Ferguson, S, Measuring food-related attentional bias, Frontiers in Psychology, 12 pp. 1-8. ISSN 1664-1078 (2021) [Refereed Article]


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Copyright Statement

Copyright 2021 Franja, McCrae, Jahnel, Gearhardt and Ferguson. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) license. https://creativecommons.org/licenses/by/4.0/

DOI: doi:10.3389/fpsyg.2021.629115

Abstract

Objective: Food-related attentional bias has been defined as the tendency to give preferential attention to food-related stimuli. Attentional bias is of interest as studies have found that increased attentional bias is associated with obesity; others, however, have not. A possible reason for mixed results may be that there is no agreed upon measure of attentional bias: studies differ in both measurement and scoring of attentional bias. Additionally, little is known about the stability of attentional bias over time. The present study aims to compare attentional bias measures generated from commonly used attentional bias tasks and scoring protocols, and to test re-test reliability.

Methods: As part of a larger study, 69 participants (67% female) completed two food-related visual probe tasks at baseline: lexical (words as stimuli), and pictorial (pictures as stimuli). Reaction time bias scores (attentional bias scores) for each task were calculated in three different ways: by subtracting the reaction times for the trials where probes replaced (1) neutral stimuli from the trials where the probes replaced all food stimuli, (2) neutral stimuli from the trials where probes replaced high caloric food stimuli, and (3) neutral stimuli from low caloric food stimuli. This resulted in three separate attentional bias scores for each task. These reaction time results were then correlated. The pictorial visual probe task was administered a second time 14-days later to assess test-retest reliability.

Results: Regardless of the scoring use, lexical attentional bias scores were minimal, suggesting minimal attentional bias. Pictorial task attentional bias scores were larger, suggesting greater attentional bias. The correlation between the various scores was relatively small (r= 0.130.20). Similarly, test-retest reliability for the pictorial task was poor regardless of how the test was scored (r = 0.200.41).

Conclusion: These results suggest that at least some of the variation in findings across attentional bias studies could be due to differences in the way that attentional bias is measured. Future research may benefit from either combining eye-tracking measurements in addition to reaction times.

Item Details

Item Type:Refereed Article
Keywords:obesity, attentional bias, measurement, visual probe, lexical, reaction time, reliability, pictorial
Research Division:Psychology
Research Group:Clinical and health psychology
Research Field:Health psychology
Objective Division:Health
Objective Group:Public health (excl. specific population health)
Objective Field:Overweight and obesity
UTAS Author:Franja, S (Ms Stefania Franja)
UTAS Author:McCrae, AE (Mrs Anna McCrae)
UTAS Author:Jahnel, T (Ms Tina Jahnel)
UTAS Author:Ferguson, S (Professor Stuart Ferguson)
ID Code:147146
Year Published:2021
Deposited By:Medicine
Deposited On:2021-10-14
Last Modified:2021-11-19
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