Positive psychological traits predict future sleep quality and quantity: exploring emotion regulation as a common mediator.

OBJECTIVE: Mindfulness, self-compassion, gratitude, and optimism have each been associated with better sleep quality and quantity; however, their collective and relative contributions to future sleep outcomes remain unexplored. The current study therefore investigated whether baseline levels of these positive psychological traits could predict subsequent sleep quality and quantity. In addition, emotion regulation was examined as a potential common mediator of the relationships between each of the positive traits and sleep. METHODS AND MEASURES: A prospective, correlational design was employed. Student participants (N = 220) completed self-report measures of mindfulness, self-compassion, gratitude, optimism, emotion regulation and sleep quality and quantity at three separate time-points, each approximately 12 wk apart. RESULTS: Hierarchical regression analyses indicated that, collectively, the positive traits at baseline predicted better sleep quality and quantity 12 wk and 24 wk later. Optimism emerged as a unique predictor of sleep at each time-point, with higher levels of optimism predicting better sleep. Maladaptive emotion regulation mediated the relationships between optimism and sleep and self-compassion and sleep. CONCLUSION: Findings are consistent with the idea that positive psychological traits might help to facilitate good sleep quality and quantity and indicate that reductions in maladaptive emotion regulation may underpin associations between some positive traits and sleep.

Investigating the combined and unique contributions of positive psychological traits to sleep and exploring emotion regulation as a common mediator.

The identification of variables which facilitate good quality and quantity sleep represents an important step in tackling the current global sleep loss epidemic. Previous research has established links between good sleep and the positive psychological traits of mindfulness, self-compassion, gratitude and optimism. However, studies have typically focused on single traits, limiting understanding of their collective and independent associations. The two studies reported here address this gap by exploring the combined and unique contributions of mindfulness, self-compassion, gratitude and optimism to sleep; Study 2 further investigated emotion regulation as a common underlying mechanism. Participants in both studies (Study 1 N = 268; Study 2 N = 333) completed online questionnaires assessing the four positive psychological traits and sleep quality and quantity; participants in Study 2 also completed measures of adaptive and maladaptive emotion regulation. Multiple regression analyses revealed that mindfulness, self-compassion, gratitude and optimism collectively accounted for 24.96% (Study 1) and 15.81% (Study 2) of the variance in overall sleep quality and quantity. Optimism and mindfulness emerged as significant linear predictors in their own right, with higher levels of optimism and mindfulness respectively being associated with better sleep. Study 2 further identified maladaptive emotion regulation as a common mediating mechanism. Findings highlight the importance of positive psychological traits in relation to sleep and indicate that optimism and mindfulness might make unique contributions to the prediction of sleep outcomes. Findings also flag emotion regulation as a potential common mediator of associations between positive psychological traits and sleep.

Financial concern predicts deteriorations in mental and physical health among university students.

Objective: The aim of the present study was to investigate whether students' financial concerns predicted subsequent changes in their mental and physical health. In addition the opportunity was taken to test for reverse causality, by exploring whether initial levels of health predicted subsequent changes in financial concern. Design: The study employed a prospective correlational design. Main Outcome Measures: Undergraduate students at a British university (N = 337) completed measures of financial concern and health at two time points, approximately 8 weeks apart. Results: Regression analyses indicated that experiencing greater financial concern at baseline was associated with subsequent deteriorations in health on the following outcomes: role limitation due to physical problems, role limitation due to emotional problems, social functioning, mental health, general health perception and change in health. By contrast, there was no evidence that initial health influenced subsequent changes in financial concern. Conclusion: Findings suggest that financial concern might adversely impact mental and physical health outcomes in student populations.

Can self-affirmation exacerbate adverse reactions to stress under certain conditions?

OBJECTIVE: Self-affirmation has repeatedly been shown to reduce adverse psychological and physiological responses to stress. However, it is plausible that self-affirmation could exacerbate negative reactions to stress under certain conditions. The current research explored whether self-affirmation would increase negative psychological responses to a stressor occurring in a central life domain characterised by low levels of control. DESIGN: Female participants (Study 1 N = 132; Study 2 N = 141) completed baseline measures of anxiety and mood. They were then randomly allocated to complete a self-affirmation or control task, before reading a narrative documenting a stressful birth and imagining themselves in the place of the woman giving birth. After completing this task, participants again reported their levels of anxiety and positive mood. MAIN OUTCOME MEASURES: Anxiety and positive mood assessed at follow-up. RESULTS: Study 1 demonstrated that self-affirmed women experienced increased anxiety and less positive mood at follow-up, compared both to baseline and to women in the control condition. Study 2 revealed that the effect of self-affirmation on outcomes was moderated by fear of childbirth. CONCLUSION: These results provide preliminary evidence that self-affirmation may worsen negative responses to stressors under certain conditions and for certain individuals.

Self-affirmation improves self-control over snacking among participants low in eating self-efficacy.

OBJECTIVE: Individuals low in eating self-efficacy are at particular risk of engaging in unhealthy eating behaviours, including the consumption of high calorie snacks. The elevated levels of snacking displayed by these individuals can largely be attributed to their experiencing low self-control over the avoidance of such foods (Hankonen, Kinnunen, Absetz, & Jallinoja, 2014). Interventions are thus required to boost self-control over snacking among those low in eating self-efficacy. Self-affirmation has been shown to boost self-control among individuals with depleted resources in other domains (Schmeichel & Vohs, 2009). The purpose of the current study was to test the hypothesis that a self-affirmation manipulation would similarly increase self-control over snacking for individuals low in eating self-efficacy. METHODS: At baseline, participants (N = 70) completed measures of dietary restraint and eating self-efficacy. In the main study, participants completed either a self-affirmation or a control task immediately before undertaking a joystick category judgment task that assessed self-control over snacking. RESULTS: Hierarchical multiple regression analysis revealed the predicted significant interaction between eating self-efficacy and self-affirmation, demonstrating that self-affirmation moderated the association between eating self-efficacy and self-control over snacking. Johnson-Neyman regions of significance confirmed that for participants low in eating self-efficacy the self-affirmation manipulation resulted in higher levels of self-control. Unexpectedly, however, for participants high in eating self-efficacy the self-affirmation manipulation was found to be associated with lower levels of self-control. CONCLUSIONS: Findings supported the hypothesis that a self-affirmation manipulation would boost self-control over snacking among individuals low in eating self-efficacy. Self-affirmation may thus provide a useful technique for strengthening self-control in relation to the avoidance of unhealthy foods among individuals who find it difficult to manage challenging dietary situations.

Experimentally Manipulated Self-Affirmation Promotes Reduced Alcohol Consumption in Response to Narrative Information.

BACKGROUND: Health-risk information is increasingly being conveyed through accounts of personal experiences or narrative information. However, whether self-affirmation can enhance the ability of such messages to promote behavior change has yet to be established. PURPOSE: This study aims to test whether self-affirmation (a) promotes behavior change following exposure to narrative information about the risks of excessive alcohol consumption and (b) boosts message acceptance by increasing narrative engagement. METHODS: In an experimental design, female drinkers (N = 142) reported their baseline alcohol consumption and were randomly allocated to condition (Self-Affirmation, Control). All participants next watched an extract of a genuine narrative piece in which the central character discussed her liver disease and its link with her previous alcohol consumption. Then, participants completed measures assessing engagement with the narrative and message acceptance. The primary outcome was alcohol consumption, assessed at 7-day follow-up. RESULTS: Self-affirmed participants reported consuming significantly less alcohol at follow-up compared to baseline (mean 7-day decrease = 5.43 units); there was no change in alcohol consumption for the control group. Immediately post-manipulation, self-affirmed participants (vs. control) showed more message acceptance and reported greater engagement with the information. The impact of self-affirmation on message acceptance was mediated by narrative engagement. CONCLUSIONS: Self-affirmation can promote behavior change following exposure to health information, even when presented in narrative form. CLINICAL TRIAL REGISTRATION: The trial is registered at ClinicalTrials.gov , number NCT02681900, ( https://clinicaltrials.gov/show/NCT02681900 ).

Morality or competence? The importance of affirming the appropriate dimension of self-integrity.

OBJECTIVES: Two studies explored the relative efficacy of a morality-based versus a competence-based self-affirmation manipulation at increasing acceptance of personally relevant health risk information. In accordance with prior theorizing (e.g., Cohen & Sherman, 2014), it was hypothesized that the morality affirmation would be more effective than the competence affirmation in such contexts, as the former targets a different domain to that threatened by the health risk information. DESIGN: Both studies employed a cross-sectional experimental design. METHODS: Participants were presented with a morality affirmation, competence affirmation, or no affirmation control prior to reading a message about the risks of (1) not engaging in daily dental flossing (Study 1) and (2) red meat consumption (Study 2). Participants subsequently completed a number of measures assessing acceptance of the message. RESULTS: In line with predictions, findings from both studies demonstrated that the morality affirmation precipitated greater acceptance of personally relevant health risk information compared to the competence affirmation, as reflected in more positive attitudes (Studies 1 and 2) and intentions (Study 1). Study 2's findings further suggested that the superior efficacy of the morality affirmation in health-related contexts could not simply be attributed to a general tendency for this affirmation to outperform the competence affirmation. CONCLUSIONS: The nature of the value affirmed may be a critical factor in determining the success of self-affirmation manipulations in health-related domains. Statement of contribution What is already known on this subject? Self-affirmation has been shown to promote openness to personally relevant health risk information across a variety of behavioural domains. The most frequently utilized self-affirmation manipulation involves participants reflecting on a personally important value; however, participants typically self-select the value they reflect on. This means that the nature of the value that is affirmed may vary from person to person within a given study, seriously limiting the interpretability of the findings. What does this study add? This study manipulated the domain of the value affirmed prior to reading a health risk message. Findings suggest that a morality affirmation is most effective at promoting openness to the message. This study highlights the importance of value domain in determining the success of self-affirmation.

The moderating impact of self-esteem on self-affirmation effects.

OBJECTIVES: This study explored whether self-esteem would moderate the effectiveness of a self-affirmation manipulation at increasing openness to personally relevant health-risk information. DESIGN: The study employed a prospective experimental design. METHOD: Participants (N = 328) completed either a self-affirmation manipulation or a control task, prior to reading information detailing the health-related consequences of taking insufficient exercise. They then completed a series of measures assessing their cognitions towards exercise and their derogation of the information. Exercise behaviour was assessed at 1-week follow-up. RESULTS: Self-esteem moderated the impact of self-affirmation on the majority of outcomes. For participants with low self-esteem, the self-affirmation manipulation resulted in more positive attitudes and intentions towards exercise, together with lower levels of derogation of the health-risk information. By contrast, there was no effect of the self-affirmation manipulation on outcomes for participants with high self-esteem. CONCLUSION: Findings suggest that self-affirmation manipulations might be of particular benefit for those with low self-esteem in terms of promoting openness towards health-risk information. This is promising from a health promotion perspective, as individuals with low self-esteem often represent those most in need of intervention. Statement of contribution What is already known on this subject? Self-affirmation has been shown to result in more open processing of personally relevant health-risk information. Individuals low in self-esteem tend to process such information more defensively than those high in self-esteem. What does this study add? It explores whether self-esteem moderates the impact of self-affirmation on responses to health-risk information. Findings suggest that individuals with low self-esteem benefit most from the self-affirmation manipulation. This has important applied implications, as individuals with low self-esteem may be most in need of intervention.

Applying Leventhal's self-regulatory model to pregnancy: evidence that pregnancy-related beliefs and emotional responses are associated with maternal health outcomes.

This study explored whether women's beliefs about, and emotional responses to, pregnancy could account for variations in maternal mental and physical health outcomes, using the self-regulatory model as a theoretical framework. Women in the last trimester of pregnancy (N=408) completed an online survey including measures of representations of pregnancy, coping, and physical and mental health. Results revealed that representations of pregnancy accounted for up to 30 and 39 per cent of the variance in indicators of physical and mental health, respectively. Findings suggest that beliefs about pregnancy may have important implications for maternal health.

Combining self-affirmation and implementation intentions: evidence of detrimental effects on behavioral outcomes.

BACKGROUND: There is limited evidence that self-affirmation manipulations can promote health behavior change. PURPOSE: The purpose of this study was to explore whether the efficacy of a self-affirmation manipulation at promoting exercise could be enhanced by an implementation intention intervention. METHODS: Participants (Study 1 N = 120, Study 2 N = 116) were allocated to one of four conditions resulting from the two (self-affirmation manipulation: no affirmation, affirmation) by two (implementation intention manipulation: no implementation intention, implementation intention) experimental design. Exercise behavior was assessed 1 week post-intervention. RESULTS: Contrary to prediction, those participants receiving both manipulations were significantly less likely to increase the amount they exercised compared to those receiving only the self-affirmation manipulation. CONCLUSION: Incorporating an implementation intention manipulation alongside a self-affirmation manipulation had a detrimental effect on exercise behavior; participants receiving both manipulations exercised significantly less in the week following the intervention.

Reflective and non-reflective antecedents of health-related behaviour: exploring the relative contributions of impulsivity and implicit self-control to the prediction of dietary behaviour.

OBJECTIVES: This study (N= 139) explored whether two measures that capture non-reflective processing (viz. a self-report measure of impulsivity and a behavioural measure of implicit self-control) would contribute to the prediction of dietary behaviour over and above cognitive predictors specified by the theory of planned behaviour (TPB). METHODS: Four dimensions of impulsivity were measured at Time 1. Implicit self-control was measured at Time 2, alongside TPB predictors relating to the avoidance of high-calorie snacks. At Time 3, participants reported their snacking behaviour over the previous 2 weeks. RESULTS: Results revealed that both impulsivity and implicit self-control significantly contributed to the prediction of snacking behaviour over and above the TPB predictors. CONCLUSIONS: It was concluded that the predictive utility of models such as the TPB might be augmented by the inclusion of variables that capture non-reflective information processing.

Pro-environmental actions, climate change, and defensiveness: do self-affirmations make a difference to people's motives and beliefs about making a difference?

Social concerns with the imperative of environmentally sustainable life-styles sit rather awkwardly with ideas about the widespread denial of global environmental problems. Given the very obvious threat and denial dimensions to these issues, we conducted two studies assessing the impact of self-affirmation manipulations on people's beliefs and motives regarding pro-environmental actions. In Study 1, participants (N=125) completed a self-affirmation task and read information on the threat of climate change. Results showed that the self-affirmation manipulation resulted in lower levels of denial and greater perceptions of personal involvement in relation to climate change. In Study 2, participants (N=90) completed a self-affirmation task and read some information on recycling. Findings showed a beneficial effect of a self-affirmation manipulation on intentions to increase recycling behaviour (among lower recyclers). The results are discussed in relation to the potential benefits of self-affirmation manipulations for promoting pro-environmental actions.

Understanding the impact of mortality-related health-risk information: a terror management theory perspective.

Four studies explored the effects of providing mortality-related health-risk information from a terror management theory perspective. Study 1 (N = 48) revealed that exposure to information about the mortality-related risks of driving made mortality salient for young male drivers. Studies 2 (N = 60) and 3 (N = 139) demonstrated that young male drivers who perceived driving (fast) to be beneficial for self-esteem reported higher intentions to take driving risks (Study 2) and drive fast (Study 3) after exposure to such information compared to controls. Study 3 further demonstrated that the inclusion of a prime to behave responsibly eliminated this effect. Study 4 (N = 92) revealed that exposure to this prime alongside the mortality-related information generated increased accessibility of responsibility-related constructs and reduced accessibility of mortality-related constructs among young male drivers. The implications of these findings for terror management theory are discussed.

Fear appeals and binge drinking: a terror management theory perspective.

OBJECTIVES: The aim of the current research was to test the terror management theory-derived hypotheses that exposure to information about the mortality-related risks of binge drinking would make mortality salient (Study 1) and, hence, exacerbate willingness to binge drink amongst those who perceive this behaviour to benefit self-esteem (Study 2). STUDY 1: Participants (N=97) were allocated to one of five experimental conditions. Results confirmed that exposure to information about the mortality-related risks of binge drinking made mortality salient. STUDY 2: Participants (N=296) were allocated to one of three experimental conditions. Exposure to mortality-related information about the risks of binge drinking was found to result in greater willingness to binge drink among (i) binge drinkers and (ii) non-binge drinkers who perceived this behaviour to benefit self-esteem. There was no evidence, however, that exposure to such information influenced binge drinking over the following week. CONCLUSIONS: Research findings suggest that mortality-related health promotion campaigns might inadvertently make mortality salient, and hence precipitate the very behaviours which they aim to deter among some recipients.

The impact of financial circumstances on student health.

OBJECTIVES: To explore the impact of students' financial circumstances on their mental and physical health. DESIGN: The study employed a correlational design. METHODS: An opportunity sample of 89 British students and 98 Finnish students completed a questionnaire which assessed their amount of debt, financial concerns, mental and physical health, smoking and drinking behaviours, work in addition to study, and perceptions of control. RESULTS: British students reported greater levels of debt and financial concern than Finnish students. They also reported significantly worse mental and physical health on a variety of dimensions. Financial concern was a significant linear predictor of mental and physical health, with increased financial concern being consistently associated with worse health. There was no evidence that students' smoking or drinking behaviour, work in addition to study, or perceptions of control substantially mediated the relationship between financial concern and health. CONCLUSION: The results support the position that students' financial circumstances might have serious implications for their health. It is proposed, therefore, that recent changes in government funding policies for students could have a negative impact on student health and exacerbate finance-related health inequalities. Further research is required to identify factors that may mediate or moderate the impact of financial concern on health.

Emotion and adherence to treatment in people with asthma: an application of the emotional stroop paradigm.

This study explored whether an emotional Stroop paradigm might represent an appropriate means of assessing individuals' emotional representations of asthma. In addition, the opportunity was taken to investigate whether emotional representations of asthma, as assessed by this method, were associated with adherence to inhaled preventative medication. An asthma Stroop task was devised which comprised three sets of stimuli: asthma symptom words, general negative words, and neutral words. Three groups of participants were compared on their performance on this task: individuals with asthma, individuals without asthma, and individuals without asthma who had been primed about the condition. It was found that individuals with asthma experienced significantly more interference when colour-naming the asthma symptom words, but not when colour-naming the general negative words. Furthermore, their performance on the asthma Stroop task was associated with self-reported adherence levels. Specifically, individuals who reported the highest and lowest levels of adherence displayed more interference when colour-naming the asthma symptom words than individuals with intermediate levels of adherence. It is concluded that the emotional Stroop paradigm might provide an objective and sensitive means of assessing individuals' emotional representations of illness. Additionally, it is proposed that emotional responses to illness should be assessed and included in research designed to explain health behaviours and, furthermore, that such research should not assume that any relationship between emotional representations and health behaviours will be linear.