G.M. van Koningsbruggen

Using health primes to reduce unhealthy snack purchases among overweight consumers in a grocery store

Objective:Healthy-eating intentions of overweight individuals are often thwarted by the presence of attractive food temptations in grocery stores and the home environment. To support healthy-eating intentions, we tested the effectiveness of a simple health prime to reduce the purchases of energy-dense snack foods in a grocery store among overweight individuals.Design:This field experiment had a 2 (condition: health prime vs control) × 2 (weight status: overweight vs normal weight) between-participants design.Method:Customers of a grocery store were handed a recipe flyer that either contained a health and diet prime, or not. Participants’ weight and height, as well as their attention to and awareness of the prime during shopping, were assessed by means of a questionnaire. The purchase of unhealthy snack foods was assessed by means of the receipt.Results:Results showed that the health prime reduced snack purchases compared with the control condition among overweight and obese participants. When primed, overweight and obese participants bought almost 75% fewer snacks than when not primed. Additional analyses showed that although the prime worked only when customers paid initial attention to the flyer that contained the health prime, no conscious awareness of the prime during grocery shopping was necessary for these effects.Conclusion:These findings suggest that health priming can lead to healthier grocery shopping among overweight consumers, without relying on conscious awareness during shopping. This makes priming a highly viable intervention tool to facilitate healthy food choices. Such tools are especially relevant in the setting of grocery shopping, given that they have direct effects on eating in the home environment and thus for longer-term weight management.

Successful restrained eating and trait impulsiveness

Restrained eaters with high scores on the Perceived Self-Regulatory Success in Dieting Scale (PSRS) are more successful than low scorers in regulating their food intake. According to the theory of temptation-elicited goal activation (Fishbach, Friedman, & Kruglanski, 2003), they have become successful because, due to earlier repeated instances of successful self-control, they formed an associative link between temptations and thoughts of dieting. It is unclear, however, why they should have been more successful in earlier attempts at self-control than their unsuccessful counterparts. We examined whether trait impulsiveness plays a role by investigating the associations between dietary restraint, trait impulsiveness, and PSRS. Results showed that the interaction between dietary restraint and impulsiveness predicted dieting success: A lower level of impulsiveness was associated with greater dieting success among restrained eaters. These results suggest that restrained eaters who are less impulsive are more likely to become successful restrained eaters as identified with the PSRS.

What is trained during food go/no-go training? A review focusing on mechanisms and a research agenda

Purpose of ReviewDuring food go/no-go training, people consistently withhold responses toward no-go food items. We discuss how food go/no-go training may change people’s behavior toward no-go food items by comparing three accounts: (a) the training strengthens ‘top-down’ inhibitory control over food-related responses, (b) the training creates automatic ‘bottom-up’ associations between no-go food items and stopping responses, and (c) the training leads to devaluation of no-go food items.Recent FindingsGo/no-go training can reduce intake of food and choices for food and facilitate short-term weight loss. It appears unlikely that food go/no-go training strengthens top-down inhibitory control. There is some evidence suggesting the training could create automatic stop associations. There is strong evidence suggesting go/no-go training reduces evaluations of no-go food items.SummaryFood go/no-go training can change behavior toward food and evaluation of food items. To advance knowledge, more research is needed on the underlying mechanisms of the training, the role of attention during go/no-go training, and on when effects generalize to untrained food items.

The Rise and Fall of Self-Control Temptation-Elicited Goal Activation and Effortful Goal-Directed Behavior

Environmental cues of temptation generally frustrate people’s long-term goal attainment. However, recent research suggests that temptation cues promote, rather than hamper long-term goal congruent effects in successful self-regulators. While previous work has started to shed light on the cognitive features of this rise and fall of self-control, the present research aims to significantly advance this study by exploring important implications for actual behavior in the domain of dieting. In combining a temptation cue exposure procedure with a concurrent schedules task, results of two studies demonstrated that tempting food cues increased unsuccessful, but not successful dieters’ effortful behavior toward high-calorie food. In contrast, tempting food cues increased successful dieters’ efforts toward low-calorie food, but did not affect unsuccessful dieters. The findings suggest that the behavior of both unsuccessful and successful dieters in response to tempting food cues is goal-directed rather than impulsive.

Mere exposure to palatable food cues reduces restrained eaters' physical effort to obtain healthy food

We examined whether exposure to cues of attractive food reduces effortful behavior toward healthy foods for restrained eaters. After manipulating food pre-exposure, we recorded handgrip force while presenting participants with pictures of healthy food objects. Because participants were led to expect that they could obtain each object (not specified beforehand) by squeezing the handgrip as forcefully as possible while the object was displayed on the screen, the recorded handgrip force constitutes a measure of spontaneous effortful behavior. Results show that restrained eaters, but not unrestrained eaters, displayed less forceful action toward healthy food objects (i.e., lower exertion of force) when pre-exposed to tempting food cues. No effects were found on palatability perceptions of the healthy foods. The results provide further insight into why restrained eaters have difficulties in maintaining a low-calorie diet in food-rich environments.

Self-affirmation interventions to change health behaviors

Many messages that aim at changing peoples health behaviors highlight the negative consequences of continuing to engage in current behaviors (insufficient physical activity and smoking). However, such messages are often less effective than desired because people respond defensively to threatening communication by ignoring or derogating it. In this chapter, we discuss how self-affirmation theory can assist both in understanding individual defensive responses and in improving the effectiveness of health messages. Self-affirmation theory proposes that messages that highlight negative consequences of current behavior provoke defensive responses because they threaten a persons view of themselves as being good and adequate. However, the theory also poses that if people affirm an unrelated domain of their self-system, defensive responses decrease and more adaptive behavior ensues.In this chapter, we provide an updated review of the evidence for self-affirmation effects on health behavior change, discuss circumstances under which self-affirmation might work better or worse, outline the psychological processes mediating self-affirmation effects and present some recommendations for the use of self-affirmation in interventions to change health behaviors.

Boosting anticipated regret and health behavior change through self-affirmation

Background: Many psycho-oncology studies use posttraumatic growth (PTG) measures designed for general trauma experiences, and as such they may not take into account life changes associated with a health-related context. Method: Study 1, a thematic analysis of written narratives (N = 209), emphasised cancer survivors’ newfound compassion. Study 2, with 504 prostate cancer survivors, measured the Posttraumatic Growth Inventory including five additional items derived from Study 1 to represent increased compassion. Findings: A Principal Components Analysis revealed a six-component structure after deleting eight items. Components related to compassion, new possibilities, relating to others, personal strength, appreciation of life, and spiritual change. Compassion accounted for 48.9% of variance, with the overall model accounting for 79.9% of variance. Strong factorability, internal consistency, and convergent validity were demonstrated. Discussion: The salience of newfound compassion after cancer was demonstrated. This research has important implications for accurately assessing the post-diagnosis trajectory of adjustment after cancer.Special Issue: Abstracts supplement: “Well-being, quality of life and caregiving” : 27th Conference of the European health psychology society, Bordeaux, France, 16th – 20th July 2013Background: Self-affirmation (i.e., focusing on a valued aspect of the self-concept) can promote health behaviour change. This study aimed to see if self-affirmation increased physical activity (PA) regardless of threat level presented in health messages. Methods: Sixty-eight participants were randomly allocated to condition in a 2 (self-affirmation, no affirmation) x 2 (high threat, low threat) between-participants design. Participants completed the Godin Leisure-Time Exercise Questionnaire at baseline and one week later to assess PA. Findings: A two-way ANCOVA with affirmation condition and threat level as predictor variables, controlling for baseline PA, was performed on follow up PA. Baseline PA was a significant predictor (F(1,63) = 399.63, p<0.001) and the main effect of affirmation condition approached significance (F(1,63) = 3.55, p=0.06). There were no other significant effects. Discussion: This study provides further evidence that self-affirmation can increase PA, but found no interaction between self-affirmation and threat level presented in health messages.Background: Contemporary alcohol research suggests that implicit attitudes are important predictors of drinking behaviour and there is growing interest surrounding factors influencing them. Research suggests that evaluative conditioning (EC) influences implicit attitudes and at a population level the most obvious and prolific use of EC is advertising. Methods: Participants (n= 51, mean age= 22.43) completed alcohol- and chocolate-related Implicit Association Tests (IAT) before viewing an advertisement for either chocolate or beer. Participants then completed post-test IATs before being provided with chocolate and beer products and asked to consume as much as they wanted. Findings: Viewing a beer advertisement produced a significant positive shift in alcohol-related implicit attitudes from pre- to post-test. No other significant effects on implicit attitudes or behaviour were found. Discussion: Alcohol advertisements are effective in changing alcohol-related implicit attitudes; however the influence on behaviour requires further investigation. Implications for the manipulation of alcohol-related implicit attitudes are discussed.Background: Recent research has highlighted the importance of automatic processes in predicting impulsive health risk behaviour. This has led to the creation of health behaviour models such as the Prototype Willingness Model (PWM) which take into account dual processes when predicting health behaviour. The current research argues that individuals are more likely to engage in impulsive drinking behaviour on a weekend as opposed to a weekday as there are fewer constraints placed upon drinking behaviour. Methods: Participants (n= 61, mean age= 22) completed an alcohol Implicit Association Test as well as a questionnaire assessing variables on the PWM and drinking behaviour. Findings: More positive alcohol-related automatic cognitions were significantly related to increased levels of both frequency and quantity of self-reported weekend drinking behaviour but were not significantly related to weekday drinking behaviour. Discussion: Automatic processes successfully predicted drinking behaviour when there were fewer constraints placed upon individuals.Background: The Prototype Willingness Model (PWM) suggests that there are two separate antecedents to behaviour: intention and willingness. Whereas intention is suggested to be rational and deliberative, willingness is more automatic and impulsive. The current study used a cross-cultural sample in order to examine the differing predictive power of the PWM for drinking behaviour. Methods: A sample of 193 individuals from Australia (n=108) and Singapore (n=85) completed a questionnaire measuring alcohol consumption and variables on the PWM. Findings: Willingness to drink significantly predicted alcohol consumption in Singaporeans. Both willingness and intention to drink significantly predicted frequency of alcohol consumption Discussion: The antecedents of the PWM differentially predict alcohol consumption in culturally different samples. Implications for health interventions aimed to reduce drinking across cultures are discussed.Background. Parenting has been associated with child weight status. This study aims to evaluate the effects on parenting skills and BMI-SDS of the BBOFT+ overweight prevention program, compared to care-as-usual (CAU). Method. In a cluster-randomized trial, 2500 parents participated. Parent-reported weight and length were used. Parenting was measured with subscales control and reinforcement of the parenting strategies for eating and activity scale (PEAS) and the warmth subscale from the Child Rearing Questionnaire. Results. The first univariate analyses show that at age 15 months, no statistically significant differences in BMI- SDS, parental control, reinforcement or warmth were found between the BBOFT+ and the CAU group. Further cluster analyses need to be conducted. Results from age 36 months will be presented during the conference, which will include all subscales of the PEAS and an assessment of parenting styles. Conclusion. The intervention does not seem to have an effect on BMI-SDS or parenting.Taylor & Francis makes every effort to ensure the accuracy of all the information (the “Content”) contained in the publications on our platform. However, Taylor & Francis, our agents, and our licensors make no representations or warranties whatsoever as to the accuracy, completeness, or suitability for any purpose of the Content. Any opinions and views expressed in this publication are the opinions and views of the authors, and are not the views of or endorsed by Taylor & Francis. The accuracy of the Content should not be relied upon and should be independently verified with primary sources of information. Taylor and Francis shall not be liable for any losses, actions, claims, proceedings, demands, costs, expenses, damages, and other liabilities whatsoever or howsoever caused arising directly or indirectly in connection with, in relation to or arising out of the use of the Content.

The impact of healthy food and lifestyle primes on people's choices of food and activities

Adequate nutrition during toddlerhood is essential for optimal growth and development, yet biochemical data suggest that 12-24-month-old children are at risk of iron deficiency. Mathematical modelling combined with experimental interventions can provide strong evidence regarding the types of foods required to improve toddler iron status.Dietary pattern affects blood levels of environmental pollutants in elderly Swedish men and women