title: Eye gaze tracking reveals heightened attention to food in adults with binge eating when viewing images of real-world scenes.
abstract: Individuals with eating disorders often exhibit food-related biases in attention tasks. To assess the engagement and maintenance of attention to food in adults with binge eating, in the present study, eye gaze tracking was used to compare fixations to food among non-clinical adults with versus without binge eating while they viewed images of real-world scenes. Fifty-seven participants' eye fixations were tracked and recorded throughout 8-second presentations of scenes containing high-calorie and/or low-caloriefood items in various settings (restaurants, social gatherings, etc.). Participants with binge eating fixated on both high-calorie and low-calorie food items significantly more than controls, and this was the case when the high- and low-calorie food items were presented in the same image and in different images. Participants with binge eating also fixated on food items significantly earlier in the presentations. A time course analysis that divided each 8-second presentation into 2-second intervals revealed that participants with binge eating attended to food items more than control participants throughout the 8-second presentation. These results have implications for theory regarding the initiation and maintenance of binge eating.
authors.affiliation: University of Calgary, Calgary, Canada.
authors.forename: Avery
authors.initials: A
authors.lastname: Popien
authors.affiliation: University of Calgary, Calgary, Canada.
authors.forename: Mallory
authors.initials: M
authors.lastname: Frayn
authors.affiliation: University of Calgary, Calgary, Canada.
authors.forename: Kristin M
authors.initials: KM
authors.lastname: von Ranson
authors.affiliation: University of Calgary, Calgary, Canada. Electronic address: sears@ucalgary.ca.
authors.forename: Christopher R
authors.initials: CR
authors.lastname: Sears
mesh_terms: D000293:Adolescent; D000328:Adult; D001288:Attention; D056912:Binge-Eating Disorder / Q000503:physiopathology / Q000523:psychology; D002032:Bulimia / Q000503:physiopathology / Q000523:psychology; D004435:Eating; D002149:Energy Intake; D005260:Female; D005403:Fixation, Ocular; D005502:Food; D006801:Humans; D008297:Male; D014796:Visual Perception; D055815:Young Adult
keywords: Attention; Attentional bias; Binge eating; Eye gaze tracking; Eye movements