The Mechanism Of Attention Bias And Eating Behavior In The Women With Restrained Eater

As the fringe people of eating behavior disorders, restrained eaters have been being the hot focus of psychological research, restrained eaters who are people who intend to limit their food intake, but frequently fail and indulge in exactly the foods they want to avoid, Great importance has been attached to the focus on attention bias for food in restrained eaters. A considerable amount of reseaches had found the existence of attention bias for food in restrained eaters, whose mechanism is not exactly specific. Previous studies had proved the existence of attentional bias for body information and food information in Negative physical self (NPS) and Eating Disorders (ED), and explained this attentional bias as vigilance or speeded detection, which is such information could attract more attention in NPS-F and eating disorders. However, studies had found that attentional bias also might be caused by difficulty to disengage, and another study found that attentional bias also may be caused by quick avoidance. In other words, the mechanism of attentional bias may have the following three components:Speeded Detection, Difficulty to disengage and Quick avoidance. On what the nature of attention bias is no conclusion has been drawn. Due to variety of experimental materials, experiment participants and experimental paradigms, there may be different compositions. Therefore, the nature of attentional bias research results is far from uniform,especially for restrained eaters.Three researches had found that different attentional components for restrained eaters in varied conditions,which were attentional vigilance and quick avoidance. Primed hedonic goal,Stroebe proved the existence of attentional bias for palatable food information in restrained eaters, whose experiments were basic on the goal conflict of eating model.Therefore, what's the specific components of attentional bias in restrained eaters?should the components of attentional bias be different in varied type of restrained eaters(successful & unsuccessful)?should there be consistency between attentional bias and actual eating bihavior? Accordingly, our research will adopt the similar and modified probe detective paradigm that would be added neutral trials to reveal the specific components of attentional bias in different restrained eaters in different goal system, which will be also basic on the goal conflict of eating model. In experiment 1, the hypothesis is expected that there would be quick avoidance in successful reatrained eater and difficulty to disengage in unsuccessful reatrained eater, when the hedonic goal is primed.In experiment 2, the hypothesis is expected that there would be quick avoidance both in successful restrained eater and unsuccessful eater,when the weight goal was primed after the priming hedonic goal.In the same time,both experiment 1 and experiment 2, there would be consistency between attentional bias and actual eating behavior in two varied restrained eaters.In experiment 1, the results showed that there was difficulty to disengage in unsuccessful restrained eater and no attentional bias in successful restrained eater; In experiment 2, the results showed that there was both difficulty to disengage and quick avoidance in unsuccessful restrained eater and quick avoidance in successful restrained eater. In the same time,both experiment 1 and experiment 2, there were consistency between attentional bias and actual eating behavior in two varied restrained eaters.Overall, successful restrained eater showed a tendency to approach palatable food information rather than unsuccessful restrained eater showed a tendency to be away from palatable food information, we will explain these results in the goal conflict model of eating.