E-ISSN : 2733-4538
This study examined the effects of induced anxiety on cognitive bias and binge-eating behavior in BN through controlled experiments. Participants included 30 individuals who had been diagnosed as BN through the BULIT-R and DSM-IV and 30 individuals who were normal eaters free from eating problems. Subjects from both groups were randomly assigned into two affect conditions: anxiety or neutral affect. Each subjects completed dot probe detection tasks after the affect induction. That is, food-related word and neutral word pairs were presented on the screen, and soon after, participants were to recognize the location of dot probe and press the key that corresponded. After finishing the task, the participants were to enter a room with refreshments and while eating rice cake, complete the sweetness estimation questionnaire. The results showed that the binge-eating group exhibited statistically significant attentional bias to the food-related stimulus and ate more food than thenormal control group. Furthermore, there were some significant differences in attentional bias and food consumption according to the affect conditions between the two groups. The binge-eating group showed more attentional bias and food consumption when experiencing the anxiety affect as opposed to the neutral affect. The normal group showed opposite results. This study revealed that the binge-eating group had different cognitive and eating patterns than the normal eating group under the negative affect condition. These findings suggested the importance of the role of affect in binge-eating and potential implications for the intervention of BN.
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