1,721,406 research outputs found
The working and limits of subliminal advertising
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129481.pdf (Publisher’s version ) (Open Access)Radboud Universiteit Nijmegen, 20 juni 2014Promotores : Wigboldus, D.H.J., Stroebe, W. Co-promotor : Karremans, J.C.T.M.159 p
EUROPEAN REVIEW OF SOCIAL-PSYCHOLOGY, VOL 1 - STROEBE,W, HEWSTONE,M
No full textEUROPEAN REVIEW OF SOCIAL-PSYCHOLOGY, VOL 1 - STROEBE,W, HEWSTONE,
EUROPEAN REVIEW OF SOCIAL-PSYCHOLOGY, VOL 1 - STROEBE,W, HEWSTONE,M
No full textEUROPEAN REVIEW OF SOCIAL-PSYCHOLOGY, VOL 1 - STROEBE,W, HEWSTONE,
Targeting impulsive processes of eating behavior via the internet: Effects on body weight
No full textObjective. Palatable food, such as sweets, contains properties that automatically trigger the impulse to consume it even when people have goals or intentions to refrain from consuming such food. We compared the effectiveness of two interventions in reducing the portion size of palatable food that people select for themselves. Specifically, the use of dieting implementation intentions that reduce behaviour towards palatable food via top-down implementation of a dieting goal was pitted against a stop-signal training that changes the impulse-evoking quality of palatable food from bottom-up. Design. We compared the two interventions using a 2 x 2 factorial design. Methods. Participants completed a stop-signal training in which they learned to withhold a behavioural response upon presentation of tempting sweets (vs. control condition) and formed implementation intentions to diet (vs. control condition). Selected portion size was measured in a sweet-shop-like environment (Experiment 1) and through a computerized snack dispenser (Experiment 2). Results. Both interventions reduced the amount of sweets selected in the sweet shop environment (Experiment 1) and the snack dispenser (Experiment 2). On average, participants receiving an intervention selected 36% (Experiment 1) and 51% (Experiment 2) fewer sweets than control participants. In both studies, combining the interventions did not lead to additive effects: Employing one of the interventions appears to successfully eliminate instrumental behaviour towards tempting food, making the other intervention redundant. Conclusions. Both interventions reduce self-selected portion size, which is considered a major contributor to the current obesity epidemic
Comparing two psychological interventions in reducing impulsive processes of eating behavior: Effects on self-selected portion size
No full textBecause eating behavior can take on an impulsive nature many people experience difficulty with dieting to lose weight. Therefore, an experiment was conducted to test the effectiveness of two interventions targeting impulsive processes of eating behavior to facilitate weight loss: Implementation intentions to remind people about dieting versus a go/no-go task to change impulses toward palatable foods. Dieters performed an online training program (four times in 4 weeks) in which they were randomly assigned to a 2 (implementation intention condition: dieting versus control) x 2 (go/no-go task condition: food versus control) design. They formed either dieting implementation intentions (e.g., If I open the fridge I will think of dieting!) or control implementation intentions. Furthermore, they received either a go/no-go task in which behavioral stop signals were presented upon presentation of palatable foods (food go/no-go task), or upon control stimuli. Participants' weight was measured in the laboratory before and after the intervention. Strength of participants' dieting goal and their Body Mass Index (BMI; as a proxy for impulsiveness toward food) were examined as moderators. Results showed that both dieting implementation intentions and the food go/no-go task facilitated weight loss. Moreover, dieting implementation intentions facilitated weight loss particularly among people with a strong current dieting goal, whereas the food go/no-go task facilitated weight loss independent of this factor. Instead, the food go/no-go task, but not formation of dieting implementation intentions, was primarily effective among dieters with a relatively high BMI. These results provide the first preliminary evidence that interventions aimed at targeting impulsive eating-related processes via the internet can facilitate weight loss
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