The effect of Mindfulness-Based Stress Reduction on wound healing: a preliminary study.

Psychological factors have been shown to influence the process of wound healing. This study examined the effect of Mindfulness-Based Stress Reduction (MBSR) on the speed of wound healing. The local production of pro-inflammatory cytokines and growth factors was studied as potential underlying mechanism. Forty-nine adults were randomly allocated to a waiting-list control group (n = 26) or an 8-week MBSR group (n = 23). Pre- and post-intervention/waiting period assessment for both groups consisted of questionnaires. Standardized skin wounds were induced on the forearm using a suction blister method. Primary outcomes were skin permeability and reduction in wound size monitored once a day at day 3, 4, 5, 6, 7, and 10 after injury. Secondary outcomes were cytokines and growth factors and were measured in wound exudates obtained at 3, 6, and 22 h after wounding. Although there was no overall condition effect on skin permeability or wound size, post hoc analyses indicated that larger increases in mindfulness were related to greater reductions in skin permeability 3 and 4 days after wound induction. In addition, MBSR was associated with lower levels of interleukin (IL)-8 and placental growth factor in the wound fluid 22 h after wound induction. These outcomes suggest that increasing mindfulness by MBSR might have beneficial effects on early stages of wound healing. Trial Registration NTR3652, http://www.trialregister.nl.

Meeting suffering with kindness: effects of a brief self-compassion intervention for female college students.

OBJECTIVE: The present study investigated the effectiveness of a newly developed 3-week self-compassion group intervention for enhancing resilience and well-being among female college students. METHOD: Fifty-two students were randomly assigned to either an intervention designed to teach skills of self-compassion (n = 27) or an active control group intervention in which general time management skills were taught (n = 25). Both interventions comprised 3 group meetings held over 3 weeks. To measure resilience and well-being gains, participants filled out a number of questionnaires before and after the intervention. RESULTS: Results showed that the self-compassion intervention led to significantly greater increases in self-compassion, mindfulness, optimism, and self-efficacy, as well as significantly greater decreases in rumination in comparison to the active control intervention. Whereas both interventions increased life satisfaction and connectedness, no differences were found for worry and mood. CONCLUSION: These findings suggest that a brief self-compassion intervention has potential for improving student resilience and well-being.

Ego depletion and implicit and explicit determinants of condom use intentions: an experimental study among young men.

BACKGROUND: The Reflective Impulsive Model of Strack and Deutsch (2004) is a dual-process model and could be a dynamic theoretical framework of sexual risk behavior that is able to predict condom use under different circumstances. If we apply the Reflective Impulsive Model to sexual risk behavior, implicit attitudes regarding sexual risk behavior should have a stronger impact on behavior when working memory capacity is low. Explicit attitudes have a strong impact on intentions, which diminishes as participants have less working memory capacity. METHODS: In this study, we induced a state of ego depletion to examine the impact of low working memory capacity on implicit and explicit attitudes and condom use intentions. Young, male participants ( N = 66) were randomly assigned to either an ego depletion condition (difficult calculus task) or a placebo condition (easy calculus task). At baseline, a questionnaire measuring explicit attitudes and intentions to use a condom, and an Implicit Association Test measuring implicit attitudes towards condoms were administered. After the ego calculus task, participants once more completed the questionnaire and Implicit Association Test. RESULTS: We found no evidence that ego depletion had an effect on intentions to use a condom in young men. Explicit attitudes predicted intentions to use a condom, regardless of participants' state. We found no relationship between implicit condom attitudes and intentions to use a condom, neither in the ego depletion nor in the placebo condition. CONCLUSIONS: The implications of this null finding are discussed.

Ego depletion results in an increase in spontaneous false memories.

The primary aim of the current study was to examine whether depleted cognitive resources might have ramifications for the formation of neutral and negative spontaneous false memories. To examine this, participants received neutral and negative Deese/Roediger-McDermott false memory wordlists. Also, for half of the participants, cognitive resources were depleted by use of an ego depletion manipulation (solving difficult calculations while being interfered with auditory noise). Our chief finding was that depleted cognitive resources made participants more vulnerable for the production of false memories. Our results shed light on how depleted cognitive resources affect neutral and negative correct and errant memories.

Dealing efficiently with emotions: acceptance-based coping with negative emotions requires fewer resources than suppression.

Previous studies have consistently shown that changing or avoiding emotions requires resources and therefore leads to impaired performance on a subsequent self-control task. The aim of the present study was to investigate the extent to which acceptance-based coping requires regulatory resources. Participants who accepted their emotions during exposure to a sad video performed better on a subsequent self-control task than participants who were instructed to suppress their emotions and a control group who received no instructions. These findings suggest that acceptance is an efficient strategy in terms of resources.

Coping with food cravings. Investigating the potential of a mindfulness-based intervention.

The present study examined whether mindfulness-based strategies can effectively reduce food cravings in an overweight and obese adult population. Individuals participating in a dietary group treatment for overweight received an additional 7-week manual based training that aimed to promote regulation of cravings by means of acceptance. The control group did not receive this additional training program. The results showed that participants in the experimental group reported significantly lower cravings for food after the intervention compared to the control group. The findings are discussed in terms of possible mechanisms like prevention of goal frustration, disengagement of obsessive thinking and reduction of automatic relations between urge and reaction.

Carrying on or giving in: the role of automatic processes in overcoming ego depletion.

Research has shown that repeated exercise of self-control leads to impaired performance on subsequent self-control tasks, a phenomenon labelled ego depletion. The current research investigates the influence of automatic processes on self-control performance. Study 1 shows that activation of persistence leads to stable self-control performance and may help to overcome effects of ego depletion. Initially depleted participants kept their physical self-control performances constant when primed with persistence. If such a prime was absent, self-control performance of depleted participants decreased indicating ego depletion. Using a different manipulation, these findings were replicated in Study 2.

The (non-)replicability of regulatory resource depletion: A field report employing non-invasive brain stimulation.

Cognitive effort and self-control are exhausting. Although evidence is ambiguous, behavioural studies have repeatedly suggested that control-demanding tasks seem to deplete a limited cache of self-regulatory resources leading to performance degradations and fatigue. While resource depletion has indirectly been associated with a decline in right prefrontal cortex capacity, its precise neural underpinnings have not yet been revealed. This study consisted of two independent experiments, which set out to investigate the causal role of the right dorsolateral prefrontal cortex (DLPFC) in a classic dual phase depletion paradigm employing non-invasive brain stimulation. In Experiment 1 we demonstrated a general depletion effect, which was significantly eliminated by anodal transcranial Direct Current Stimulation to the right DLPFC. In Experiment 2, however, we failed to replicate the basic psychological depletion effect within a second independent sample. The dissimilar results are discussed in the context of the current 'replication crisis' and suggestions for future studies are offered. While our current results do not allow us to firmly argue for or against the existence of resource depletion, we outline why it is crucial to further clarify which specific external and internal circumstances lead to limited replicability of the described effect. We showcase and discuss the current inter-lab replication problem based on two independent samples tested within one research group (intra-lab).

A Multilab Preregistered Replication of the Ego-Depletion Effect.

Good self-control has been linked to adaptive outcomes such as better health, cohesive personal relationships, success in the workplace and at school, and less susceptibility to crime and addictions. In contrast, self-control failure is linked to maladaptive outcomes. Understanding the mechanisms by which self-control predicts behavior may assist in promoting better regulation and outcomes. A popular approach to understanding self-control is the strength or resource depletion model. Self-control is conceptualized as a limited resource that becomes depleted after a period of exertion resulting in self-control failure. The model has typically been tested using a sequential-task experimental paradigm, in which people completing an initial self-control task have reduced self-control capacity and poorer performance on a subsequent task, a state known as ego depletion Although a meta-analysis of ego-depletion experiments found a medium-sized effect, subsequent meta-analyses have questioned the size and existence of the effect and identified instances of possible bias. The analyses served as a catalyst for the current Registered Replication Report of the ego-depletion effect. Multiple laboratories (k = 23, total N = 2,141) conducted replications of a standardized ego-depletion protocol based on a sequential-task paradigm by Sripada et al. Meta-analysis of the studies revealed that the size of the ego-depletion effect was small with 95% confidence intervals (CIs) that encompassed zero (d = 0.04, 95% CI [-0.07, 0.15]. We discuss implications of the findings for the ego-depletion effect and the resource depletion model of self-control.

The power of presence: the role of mindfulness at work for daily levels and change trajectories of psychological detachment and sleep quality.

In this research, we examined the role of mindfulness for recovery from work using a daily diary design (N = 121; 5 days; 3 measurement occasions per day). The first goal of the study was to investigate the relationship of mindfulness with sleep quality and the mediating role of psychological detachment from a day-level perspective. A second goal was to extend the process perspective in recovery research beyond the day level and consider systematic change trajectories in recovery variables over the course of the work week and the role of mindfulness in these trajectories. Results regarding day-level relationships confirmed that mindfulness experienced during work was related to subsequent sleep quality, and this relationship was mediated by psychological detachment from work in the evening. Furthermore, an investigation of the role of mindfulness in recovery change trajectories supported the idea that psychological detachment trajectories increase over the work week for individuals low on mindfulness while there was no systematic mean-level change for individuals high on mindfulness. In contrast, sleep quality followed a linear increase from Monday to Friday for all individuals, irrespective of their levels of trait mindfulness. Practical and theoretical implications for the mindfulness and the recovery literature are discussed in conclusion. (PsycINFO Database Record (c) 2014 APA, all rights reserved).

Accepting or suppressing the desire to eat: investigating the short-term effects of acceptance-based craving regulation.

Previous studies addressing the long-term impact of acceptance of food cravings have revealed positive effects in terms of reduced craving experience. The present study investigated the short-term (direct) consequences of acceptance-based craving regulation. Hungry participants were exposed to desirable food and were either instructed to accept or suppress food cravings during exposure. Control participants did not regulate cravings and were allowed to eat from the food. Participants who accepted food cravings reported a significant increase in food craving during the course of the experiment. Participants who suppressed their cravings during exposure kept their craving levels constant. In contrast, control participants who were allowed to eat from the food, reported a significant drop in cravings. These findings suggest that although acceptance may entail an effective strategy for reducing food cravings in the long run, it may require repeated practice to overcome the immediate counterproductive effects.

Benefits of mindfulness at work: the role of mindfulness in emotion regulation, emotional exhaustion, and job satisfaction.

Mindfulness describes a state of consciousness in which individuals attend to ongoing events and experiences in a receptive and non-judgmental way. The present research investigated the idea that mindfulness reduces emotional exhaustion and improves job satisfaction. The authors further suggest that these associations are mediated by the emotion regulation strategy of surface acting. Study 1 was a 5-day diary study with 219 employees and revealed that mindfulness negatively related to emotional exhaustion and positively related to job satisfaction at both the within- and the between-person levels. Both relationships were mediated by surface acting at both levels of analysis. Study 2 was an experimental field study, in which participants (N = 64) were randomly assigned to a self-training mindfulness intervention group or a control group. Results revealed that participants in the mindfulness intervention group experienced significantly less emotional exhaustion and more job satisfaction than participants in the control group. The causal effect of mindfulness self-training on emotional exhaustion was mediated by surface acting. Implications for using mindfulness and mindfulness training interventions in organizational research and practice are discussed in conclusion.

The Effect of a Brief Mindfulness Intervention on Memory for Positively and Negatively Valenced Stimuli.

A core component of mindfulness is non-judgmental observation of internal and external stimuli. The present study investigated the effect of mindfulness on memory for emotional stimuli. Participants were exposed to a brief mindfulness intervention and subsequently performed a verbal learning test consisting of positive, neutral, and negative words. Control participants received no intervention and directly performed the verbal learning test. After 20 min, participants recalled as many words as possible. Participants in the mindfulness condition remembered a significantly lower proportion of negative words compared to control participants. No differences between both groups were observed for the proportion of remembered positive words. These findings suggest that memory processes may be a potential mechanism underlying the link between mindfulness and subjective well-being.

Become more optimistic by imagining a best possible self: effects of a two week intervention.

BACKGROUND AND OBJECTIVES: Optimism is a personality trait which has repeatedly been shown to correlate with, and predict psychological and physical well-being. The present study investigated whether optimism can be increased by imagining a best possible self (BPS). Effects were compared to a control group in which participants imagined their daily activities (DA). METHODS: In order to minimize inter-individual differences in content of imagery, participants constructed their BPS according to 3 domains, namely a personal, relational, and professional domain. All participants were instructed to practice their imagery exercise for 5 min per day over a period of two weeks. Effects on optimism and mood were measured after one session, after one week and after two weeks. RESULTS: Results indicated that BPS imagery led to significantly larger increases in optimism as compared to DA imagery, after one session and over a two week period. Effects on optimism remained after controlling for possible mediation by the change in positive mood. LIMITATIONS: In order to test the effectiveness of our BPS imagery intervention we relied exclusively on self-report measures. CONCLUSION: The present study confirmed that imagining a BPS enhances levels of optimism, independent of the mood effect.

The influence of trait and induced state impulsivity on food intake in normal-weight healthy women.

Previous research has linked overeating and overweight/obesity to impulsivity. To find out whether impulsivity causes overeating and hence overweight and obesity, we attempted to prime the concept of impulsivity in healthy participants. In a within-subjects design one sample participated in two conditions. In both conditions participants did a priming task that either hinted subtly at the concept of impulsivity or that was neutral in content. Each time the priming task was followed by a bogus taste test. Trait impulsivity was measured by means of a behavioural task and self-report. Firstly, we hypothesized that participants would eat more during the taste test after they had been primed with the concept "impulsivity" compared to after the control session. Secondly, we expected that a more impulsive personality would predict a heightened food intake. Thirdly, we expected that impulsivity would predict food intake better than restraint. The results showed that both the self-report measure of impulsivity and the behavioural task predicted food intake. Restraint did not significantly predict food intake. Primed impulsivity did not increase food intake, possibly because the priming effect did not last long enough.