Defying Food - How Distance Determines Monkeys' Ability to Inhibit Reaching for Food.

Objects, such as food, in the environment automatically activate and facilitate affordances, the possibilities for motoric movements in interaction with the objects. Previous research has shown that affordance activation is contingent upon the distance of the object with only proximal objects activating potential movements. However, the effect of affordance-activating proximal objects on the ability to inhibit movements has been unaddressed.

The potential of peer social norms to shape food intake in adolescents and young adults: a systematic review of effects and moderators.

This systematic review aims to assess the role that peer social norms play in shaping young people's food intake, focusing on the important questions of for whom and when peer social norms are related to how much young people eat. Thirty-three eligible studies were reviewed (17 correlational, 16 experimental). All but one correlational studies found significant associations between norms and food intake.

The relation of trait and state mindfulness with satisfaction and physical activity: A cross-sectional study in 305 Dutch participants.

Previous research has shown that satisfaction mediates the relationship of state mindfulness (i.e. during physical activity) with physical activity.

Hungry for an intervention? Adolescents' ratings of acceptability of eating-related intervention strategies.

Background: Effective interventions promoting healthier eating behavior among adolescents are urgently needed. One factor that has been shown to impact effectiveness is whether the target population accepts the intervention. While previous research has assessed adults' acceptance of eating-related interventions, research on the opinion of adolescents is lacking.

Put a limit on it: The protective effects of scarcity heuristics when self-control is low.

Low self-control is a state in which consumers are assumed to be vulnerable to making impulsive choices that hurt long-term goals. Rather than increasing self-control, the current research exploits the tendency for heuristic-based thinking in low self-control by employing scarcity heuristics to promote consumption choices. Results indicate that consumers low in self-control especially benefited and selected more healthy choices when marketed as "scarce" (Study 1), and that a demand (vs supply) scarcity heuristic was most effective in promoting utilitarian products (Study 2) suggests low self-control involves both an enhanced reward orientation and increased tendency to conform to descriptive norms.

Health behaviour procrastination: a novel reasoned route towards self-regulatory failure.

In this paper, we highlight a novel perspective on health behaviour failure by considering reasoned procrastination as a contributing factor. We argue that the failure to enact intentions does not necessarily occur because people are victims of their strong impulses, but that people may also knowingly and wilfully postpone their intended actions. While procrastination is acknowledged as a factor associated with intention-behaviour gaps in other domains, it has surprisingly received only very little attention in the domain of health behaviour.

Effects of Trait Self-Control on Response Conflict About Healthy and Unhealthy Food.

Self-control leads to positive life outcomes, but it is poorly understood. While previous research has focused on self-control failure, self-control success remains unexplored. The current studies aim to shed more light on the mechanisms of self-control by focusing on the resolution of response conflict as a key component in self-control success.

Nudging healthy food choices: a field experiment at the train station.

Background: Recognizing the mindless nature of many food decisions, it has been suggested that attempts to increase healthy eating should not focus on convincing people what is 'right' but rather aim to adjust the environment such that people are automatically directed toward healthy choices. This study investigated a nudge aiming to promote healthy food choices in train station snack shops.

Methods: The nudge involved a repositioning of food products: healthy foods were placed at the cash register desk, while keeping unhealthy products available elsewhere in the shop.

The habitual nature of unhealthy snacking: How powerful are habits in adolescence?

Many adolescents engage in unhealthy snacking behavior, and the frequency and amount of unhealthy consumption is increasing further. In this study, we aim to investigate the role that habit strength plays in unhealthy snacking during adolescence and whether self-regulation strategies can overcome habitual snacking. A total of 11,392 adolescents aged 10-17 years from nine European countries completed a cross-sectional survey about healthy eating intentions, snacking habit strength, eating self-regulation strategies, and daily intake of unhealthy snacks.

Investigating sex differences in psychological predictors of snack intake among a large representative sample.

Objective: It is often assumed that there are substantial sex differences in eating behaviour (e.g. women are more likely to be dieters or emotional eaters than men).

UnAdulterated - children and adults' visual attention to healthy and unhealthy food.

Objective: Visually attending to unhealthy food creates a desire to consume the food. To resist the temptation people have to employ self-regulation strategies, such as visual avoidance. Past research has shown that self-regulatory skills develop throughout childhood and adolescence, suggesting adults' superior self-regulation skills compared to children.

Mindfulness and satisfaction in physical activity: A cross-sectional study in the Dutch population.

Both satisfaction and mindfulness relate to sustained physical activity. This study explored their relationship. We conducted a cross-sectional study with 398 Dutch participants who completed measures on trait mindfulness, mindfulness and satisfaction with physical activity, physical activity habits, and physical activity.

Better sorry than safe: Making a Plan B reduces effectiveness of implementation intentions in healthy eating goals.

Objective: Implementation intentions (if-then plans) are helpful to health behaviour change. As these plans specify only one goal-directed behaviour for one specific situation, however, their effectiveness may be limited when a planned behaviour is impossible to execute in situ. The present research examines whether and how planning more than one goal-directed response for the same situation ('making a Plan B') affects successful self-regulation of eating behaviour.

Navigating the obesogenic environment: how psychological sensitivity to the food environment and self-regulatory competence are associated with adolescent unhealthy snacking.

Purpose: Living in an obesogenic environment may not affect all adolescents to the same extent, depending on their psychological sensitivity to the food environment and their self-regulatory competence. The purpose of the current study was to examine associations of these two factors with unhealthy snacking among adolescents. We also investigated whether self-regulatory competence could attenuate the negative effects of being sensitive to the food environment.

Activation in inhibitory brain regions during food choice correlates with temptation strength and self-regulatory success in weight-concerned women.

Food choices constitute a classic self-control dilemma involving the trade-off between immediate eating enjoyment and the long term goal of being slim and healthy, especially for weight-concerned women. For them, decision-making concerning high (HE) and low energy (LE) snacks differs when it comes to the need for self-control. In line, our first study aim was to investigate which brain regions are activated during food choices during HE compared to LE energy snacks in weight-concerned women.

Personality moderates the links of social identity with work motivation and job searching.

Work motivation is critical for successful school-to-work transitions, but little is known about its determinants among labor market entrants. Applying a social identity framework, we examined whether work motivation and job searching are social-contextually determined. We expected that some job seekers are more sensitive to contextual influence, depending on their personality.

It's my party and I eat if I want to. Reasons for unhealthy snacking.

Investigating the reasons that people give for unhealthy snacking behavior is important for developing effective health interventions. Little research, however, has identified reasons that apply to a large audience and most studies do not integrate multiple factors, precluding any conclusions regarding their relative importance. The present study explored reasons for unhealthy snacking among a representative community sample.

Communicating eating-related rules. Suggestions are more effective than restrictions.

Background: A common social influence technique for curbing unhealthy eating behavior is to communicate eating-related rules (e.g. 'you should not eat unhealthy food').

Identifying the 'if' for 'if-then' plans: combining implementation intentions with cue-monitoring targeting unhealthy snacking behaviour.

Implementation intentions aimed at changing unwanted habits require the identification of personally relevant cues triggering the habitual response in order to be effective. To facilitate successful implementation intention formation, in the present study, planning was combined with cue-monitoring, a novel way to gain insight into triggers for unhealthy snacking. It was tested whether keeping a cue-monitoring diary and tailoring implementation intentions accordingly improves plan effectiveness.

The role of pre-treatment proactive coping skills in successful weight management.

Objectives: Proactive coping encompasses future-oriented self-regulatory skills that help people prepare for future difficulties before they occur, such as planning and monitoring. The aim of the present study was to examine the interplay between pre-treatment proactive coping skills and expected difficulties during weight loss in determining successful weight management.

Method: Obese and overweight Dutch adults (N=119) who enrolled in a weight management intervention reported their level of proactive coping skills and expected difficulties at the start of intervention.

"When the going gets tough, who keeps going?" Depletion sensitivity moderates the ego-depletion effect.

Self-control relies on a limited resource that can get depleted, a phenomenon that has been labeled ego-depletion. We argue that individuals may differ in their sensitivity to depleting tasks, and that consequently some people deplete their self-control resource at a faster rate than others. In three studies, we assessed individual differences in depletion sensitivity, and demonstrate that depletion sensitivity moderates ego-depletion effects.

Bedtime procrastination: introducing a new area of procrastination.

Background: Procrastination is a prevalent and problematic phenomenon that has mostly been studied in the domain of academic behavior. The current study shows that procrastination may also lead to harmful outcomes in the area of health behavior, introducing bedtime procrastination as an important factor related to getting insufficient sleep and consequently affecting individual well-being. Bedtime procrastination is defined as failing to go to bed at the intended time, while no external circumstances prevent a person from doing so.

The proof is in the eating: subjective peer norms are associated with adolescents' eating behaviour.

Objective: To investigate associations of self-perceived eating-related peer norms (called 'subjective peer norms') with adolescents' healthy eating intentions and intake of healthy and unhealthy food.

Design: Cross-sectional data were collected in a large international survey.

Setting: Two types of subjective peer norms were assessed: perceived peer encouragement of healthy eating and perceived peer discouragement of unhealthy eating.

Effortless inhibition: habit mediates the relation between self-control and unhealthy snack consumption.

In contrast to prevailing beliefs, recent research suggests that trait self-control promotes health behavior not because those high in self-control are more successful at resisting single temptations, but rather because they develop adaptive habits. The present paper presents a first empirical test of this novel suggestion by investigating the mediating role of habit in explaining the relation between self-control and unhealthy snacking behavior. Results showed that self-control was negatively associated with unhealthy snack consumption and unhealthy snacking habits.

Sweet lies: neural, visual, and behavioral measures reveal a lack of self-control conflict during food choice in weight-concerned women.

Despite their intentions, weight-concerned individuals generally fail to control their eating behavior. However, it is unknown whether this failure is due to a lack of effortful self-control, or to not experiencing an internal conflict between weight goals and food temptations. The present study used fMRI, eye tracking and reaction times to assess the degree of conflict experienced by weight-concerned women during food choices that posed either a self-control dilemma (i.