Eating disorder symptomatology and body mass index are associated with readers' expectations about character behavior: Evidence from eye-tracking during reading.

Objective: Many theories have been put forward suggesting key factors underlying the development and maintenance of eating disorders, such as: unhealthy food-related cognitive biases, negative body attitude, and perfectionism; however, underlying cognitive processes associated with eating disorder symptomatology remain unclear. We used eye-tracking during reading as a novel implicit measure of how these factors may relate to eating disorder symptomatology.

Method: In two experiments, we monitored women's eye movements while they read texts in which the characters' emotional responses to food-, body image-, and perfectionism-related scenarios were described. Participants' eating disorder symptomatology was then assessed.

Results: Both studies suggest that moment-to-moment processing of characters' emotional responses to perfectionism-, and to a lesser extent, body image-related information was associated with participants' eating disorder symptomatology, thus supporting theories in which these factors are key to developing and maintaining eating disorders. Interestingly, the moment-to-moment processing of characters' emotional responses to food-related scenarios was not related to eating disorder symptomatology.

Discussion: These findings provide novel insights into cognitive processes underlying eating disorder symptomatology, as well as demonstrating the utility of more natural implicit measures.