Optimism is associated with mood, coping, and immune change in response to stress.

This study explored prospectively the effects of dispositional and situational optimism on mood (N=90) and immune changes (N=50) among law students in their first semester of study. Optimism was associated with better mood, higher numbers of helper T cells, and higher natural killer cell cytotoxicity. Avoidance coping partially accounted for the relationship between optimism and mood. Among the immune parameters, mood partially accounted for the optimism-helper T cell relationship, and perceived stress partially accounted for the optimism-cytotoxicity relationship. Individual differences in expectancies, appraisals, and mood may be important in understanding psychological and immune responses to stress. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

The future of optimism.

Recent theoretical discussions of optimism as an inherent aspect of human nature converge with empirical investigations of optimism as an individual difference to show that optimism can be a highly beneficial psychological characteristic linked to good mood, perseverance, achievement, and physical health. Questions remain about optimism as a research topic and more generally as a societal value. Is the meaning of optimism richer than its current conceptualization in cognitive terms? Are optimism and pessimism mutually exclusive? What is the relationship between optimism and reality, and what are the costs of optimistic beliefs that prove to be wrong? How can optimism be cultivated? How does optimism play itself out across different cultures? Optimism promises to be one of the important topics of interest to positive social science, as long as it is approached in an even-handed way. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Dispositional optimism and recovery from coronary artery bypass surgery: The beneficial effects on physical and psychological well-being.

The effect of dispositional optimism on recovery from coronary artery bypass surgery was examined in a group of 51 middle-aged men. Patients provided information at three points in time—(a) on the day before surgery, (b) 6–8 days postoperatively, and (c) 6 months postoperatively. Information was obtained relating to the patient's rate of physical recovery, mood, and postsurgical quality of life. Information was also gathered regarding the manner in which the patients attempted to cope with the stress of the surgery and its aftermath. As expected, dispositional optimism proved to be an important predictor of coping efforts and of surgical outcomes. More specifically, dispositional optimism (as assessed prior to surgery) correlated positively with manifestations of problem-focused coping and negatively with the use of denial. Dispositional optimism was also associated with a faster rate of physical recovery during the period of hospitalization and with a faster rate of return to normal life activities subsequent to discharge. Finally, there was a strong positive association between level of optimism and postsurgical quality of life at 6 months. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Distinguishing optimism from pessimism: Relations to fundamental dimensions of mood and personality.

Contrary to unidimensional conceptions of optimism and pessimism, factor analysis of 2 widely used instruments revealed that optimism and pessimism are empirically differentiable, but related, constructs. Moreover, consistent with expectations, optimism and pessimism were differentially linked with fundamental dimensions of mood and personality. Pessimism was principally associated with neuroticism and negative affect. Optimism was primarily associated with extraversion an positive affect. Findings are discussed with reference to current conceptual and measurement models of optimism and pessimism and their relations to broad dimensions of mood and personality. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Modeling cognitive adaptation: A longitudinal investigation of the impact of individual differences and coping on college adjustment and performance.

Drawing on cognitive adaptation theory, optimism, psychological control, and self-esteem were explored as longitudinal predictors of adjustment to college in a sample of 672 freshmen. Although a direct effect of optimism on adjustment was found, most of the predicted effects were mediated by coping methods. Controlling for initial positive and negative mood, the beneficial effects of optimism, control, and self-esteem on adjustment were mediated by the nonuse of avoidance coping, greater use of active coping, and greater seeking of social support. Alternative models of the causal relations among these variables did not fit the data as well as the a priori mediational model. The results of a 2-yr follow-up indicated that self-esteem and control predicted greater motivation and higher grades, controlling for college entrance exam scores. Implications for cognitive adaptation theory and for interventions with populations under stress are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Social support as a mediator of optimism and distress in breast cancer survivors.

Breast cancer patients can experience emotional distress as a result of diagnosis and treatment. Higher levels of optimism and social support are associated with less emotional distress in cancer patients. This 12-month prospective study followed 69 women who had completed treatment for Stages 0-11 breast cancer. At 3-month intervals, participants completed measures of mood disturbance, optimism, and social support. As hypothesized, affective social support mediated the relationship between optimism and distress in early-stage breast cancer survivors at baseline and 6 months but not at 1 year. In contrast, confidant social support did not mediate the optimism-distress relationship at any time point. Clinical and research implications of these findings are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effects of stressful daily events on mood states: relationship to global perceived stress

This study used experience sampling methodology to examine the relationship between stressful daily events and mood. Eighty-five male white-collar workers completed self-reports 10 times a day for 5 days. Controlling for individual differences in mood levels, multilevel regression analyses showed that events were followed by increases in negative affect (NA) and agitation (Ag) and by decreases in positive affect (PA). More unpleasant events were associated with greater changes in all three mood dimensions; controllability mitigated the effects of events on NA and PA. Prior events had persistent effects on current mood. High perceived stress (PS) was associated with greater reactivity of NA and PA to current events, whereas trait anxiety moderated reactivity of Ag. Results indicate that PS is related not only to a higher frequency of reported events but also to more intense and prolonged mood responses to daily stress.     

Daily stress, coping, and well-being in parents of children with autism: A multilevel modeling approach.

This study used a repeated daily measurement design to examine the direct and moderating effects of coping on daily psychological distress and well-being in parents of children with Autism Spectrum Disorders (ASD). Twice weekly over a 12-week period, 93 parents provided reports of their daily stress, coping responses, and end-of-day mood. Multilevel modeling analyses identified 5 coping responses (e.g., seeking support, positive reframing) that predicted increased daily positive mood and 4 (e.g., escape, withdrawal) that were associated with decreased positive mood. Similarly, 2 coping responses were associated with decreased daily negative mood and 5 predicted increased negative mood. The moderating effects of gender and the 11 coping responses were also examined. Gender did not moderate the daily coping?mood relationship, however 3 coping responses (emotional regulation, social support, and worrying) were found to moderate the daily stress?mood relationship. Additionally, ASD symptomatology, and time since an ASD diagnosis were not found to predict daily parental mood. This study is perhaps the first to identify coping responses that enhance daily well-being and mitigate daily distress in parents of children with ASD. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Optimism, Perceived Risk of Breast Cancer, and Cancer Worry Among a Community-Based Sample of Women.

Optimism is frequently inversely associated with distress; however, less is known about the mechanisms underlying this relationship. Optimism can be defined as having a generalized positive expectancy about the future. The authors hypothesized that a specific expectancy might mediate the relationship between optimism and distress. That model was tested using perceived risk of breast cancer as a specific measure of expectancy and cancer worry as a measure of distress in a community-based sample of 1,366 women. It was hypothesized that optimism would be inversely associated with cancer worry and that perceived risk of breast cancer would mediate the relationship between optimism and cancer worry. Multiple regression analyses revealed that perceived risk partially mediated the relationship between optimism and cancer worry. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Life stress, maternal optimism, and adolescent competence in single mother, African American families.

Although research demonstrates many negative family outcomes associated with single-parent households, little is known about processes that lead to positive outcomes for these families. Using 3 waves of longitudinal data, we examined how maternal dispositional optimism and life stressors are associated with parenting and child outcomes in 394 single mother African American families. Confirming prior research, we found that mothers' childhood adversities, current economic pressure, and internalizing problems were associated with lower levels of maternal warmth and child management and with lower child school competence. Extending previous studies, we found that maternal optimism was a positive resource, predicting lower levels of maternal internalizing symptoms and higher levels of effective child management and moderating the impact of economic stress on maternal internalizing problems. These findings highlight the need for further investigation of processes and resources that promote positive outcomes for African American mother-headed families and single mother families in general. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Cognitive-behavioral stress management intervention decreases the prevalence of depression and enhances benefit finding among women under treatment for early-stage breast cancer.

The authors tested effects of a 10-week group cognitive-behavioral stress management intervention among 100 women newly treated for Stage 0-II breast cancer. The intervention reduced prevalence of moderate depression (which remained relatively stable in the control condition) but did not affect other measures of emotional distress. The intervention also increased participants' reports that having breast cancer had made positive contributions to their lives, and it increased generalized optimism. Both remained significantly elevated at a 3-month follow-up of the intervention. Further analysis revealed that the intervention had its greatest impact on these 2 variables among women who were lowest in optimism, at baseline. Discussion centers on the importance of examining positive responses to traumatic events—growth, appreciation of life, shift in priorities, and positive affect—as well as negative responses. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A prospective study of adjustment to hemodialysis

OBJECTIVE: To examine (a) changes in subjects' self-care self-efficacy over time and (b) the relationship of subjects' self-care self-efficacy with adjustment to hemodialysis. DESIGN: A longitudinal design was used to study changes in self-care self-efficacy and associations between self-care self-efficacy and measures of adjustment: health status, mood distress, symptom distress, dialysis stress, and perceived adherence to fluid restriction. SAMPLE/SETTING: Subjects were recruited from 8 settings in the Northeast where outpatient hemodialysis treatment was administered. Sixty-four subjects were recruited to the study. Twenty-eight subjects completed 3 occasions of data collection. METHODS: Data were collected on three occasions: (a) baseline-within 100 days of beginning treatment; (b) 4 months after beginning treatment; and (c) 8 months after beginning treatment. Eta-squared, a measure of practical significance, is reported for four factors of the self-care self-efficacy measure on each of the three occasions. Associations between self-care self-efficacy and measures of adjustment were examined by means of Pearson correlations. RESULTS: Eta-squared estimates showed generally positive changes occurring over time in subjects' self-care self-efficacy, health status, mood distress, symptom distress, dialysis stress, and perceived adherence to fluid restriction. Changes were more positive at 4-months than at 8-months after enrollment. Significant correlations (p < .05) occurred between self-care self-efficacy and mood states, health status, symptom distress, and perceived adherence to fluid restrictions. Correlations occurred more frequently between self-care self-efficacy and mood states than between self-care self-efficacy and other measures of adjustment. CONCLUSIONS: The study provided pilot data suggesting that hemodialysis patients' self-care self-efficacy and measures of adjustment change over time. Patients who had increased confidence in self-care strategies (self-efficacy) were associated with having more positive mood states, health status, and perceived adherence to fluid restrictions and less symptom distress. Interventions designed to increase patients' self-care self-efficacy may yield positive results. Nurses are in an excellent position to give efficacy enhancing feedback that may promote patients' adjustment.     

Dispositional optimism and engagement: The moderating influence of goal prioritization.

Research indicates that a positive relationship generally exists between dispositional optimism and goal engagement and attainment. The authors argue, however, that dispositional optimism may not always be associated with more active goal pursuit. Rather, they hypothesized that this relationship is moderated by how highly a goal is prioritized. For high-priority goals, they predicted that optimistic individuals would indeed increase goal engagement and would be more likely to attain their goal relative to individuals low in optimism. For low-priority goals, they anticipated that optimistic individuals would not display greater goal engagement or attainment. In 5 studies they assessed these predictions across a variety of domains, including friendship formation, exercise persistence, and scholastic achievement. Results supported their contention that goal priority acts as a moderator of the relationship between dispositional optimism and both goal engagement and goal attainment. Evidence of 1 mediator of this moderation effect—behavioral intentions—and of a limiting factor—the temporal ordering of goals—is also presented. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The significance of statistical significance

The purpose of the present study was to assess the effect of a time limited cognitive-behavioral stress management program (CBSM) on mood state and serum cortisol among men and women rowers (N = 34) undergoing a period of heavy exercise training. After controlling for life-event stress (LES), CBSM was hypothesized to reduce negative mood state and cortisol among rowers during a period of heavy training; mood and cortisol changes over the intervention period were hypothesized to be positively correlated. LES was positively associated with negative affect at study entry. After covariance for LES, rowing athletes randomly assigned to the CBSM group experienced significant reductions in depressed mood, fatigue, and cortisol when compared to those randomized to a control group. Decreases in negative affect and fatigue were also significantly associated with cortisol decrease. These results suggest that CBSM may exert a positive effect on athletes' adaptation to heavy exercise training.     

Breast-feeding is associated with reduced perceived stress and negative mood in mothers.

Two studies examined the effects of breast-feeding on maternal stress and mood. In Experiment 1, perceived stress in the past month was compared between 28 breast-feeding and 27 bottle-feeding mothers. Breast-feeding mothers reported less perceived stress, after controlling for demographic confounds. In Experiment 2, mood ratings were assessed in the same 24 mothers both before and then after 1 breast-feeding and 1 bottle-feeding session. Breast-feeding was associated with a decrease in negative mood, and bottle-feeding was associated with a decrease in positive mood from pre- to postfeeding. Results indicated that breast-feeding buffers negative mood. These effects appeared to be attributable to the effects of breast-feeding itself and not solely to individual-differences factors. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Perceiving control, construing benefits, and daily processes in rheumatoid arthritis.

Examined the influence of perceived pain control (PPC) and pain benefit appraisals (PBAs) on adjustment to rheumatoid arthritis (RA) in a 75-day study of 54 RA patients. After completing measures of dispositional optimism (M. Scheier and C. Carver; see record 1986-19862-001) and appraisals of control over, and benefits from, their chronic pain, Ss reported each day their pain intensity, mood, and activity limitations due to pain. Controlling for disease activity and dispositional optimism, Ss high in PPC at the outset of the study experienced less daily pain. Daily pain also moderated the relation between control beliefs and adjustment as well as the relation between PBA and adjustment. With increased pain, greater PPC was associated with less positive mood. (French abstract) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The impact of daily stress on health and mood: Psychological and social resources as mediators.

This study examined daily stress processes among 75 married couples across 20 assessments during a 6-month period. The somatic and psychological effects of common everyday hassles were investigated. Overall, there was a significant relationship between daily stress and the occurrence of both concurrent and subsequent health problems such as flu, sore throat, headaches, and backaches. The relationship of daily stress to mood disturbance was more complex. The negative effects of stress on mood were limited to a single day, with the following day characterized by mood scores that were better than usual. Furthermore, striking individual differences were found in the extent to which daily stress was associated with health and mood across time. Participants with unsupportive social relationships and low self-esteem were more likely to experience an increase in psychological and somatic problems both on and following stressful days than were participants high in self-esteem and social support. These data suggest that persons with low psychosocial resources are vulnerable to illness and mood disturbance when their stress levels increase, even if they generally have little stress in their lives. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Mood management and nicotine gum in smoking treatment: a therapeutic contact and placebo-controlled study

Earlier research indicated that a 10-session mood management (MM) intervention was more effective than a 5-session standard intervention for smokers with a history of major depressive disorder (MDD). In a 2 x 2 factorial design, the present study compared MM intervention to a contact-equivalent health education intervention (HE) and 2 mg to 0 mg of nicotine gum for smokers with a history of MDD. Participants were 201 smokers, 22% with a history of MDD. Contrary to the earlier findings, the MM and HE interventions produced similar abstinence rates: 2 mg gum was no more effective than placebo. History-positive participants had a greater increase in mood disturbance after the quit attempt. Independent of depression diagnosis, increases in negative mood immediately after quitting predicted smoking. No treatment differences were found in trends over time for measures of mood, withdrawal symptoms, pleasant activities and events, self-efficacy, and optimism and pessimism. History-positive smokers may be best treated by interventions providing additional support and contact, independent of therapeutic content.     

Daily negative mood affects fasting glucose in Type 2 diabetes.

Objective: To examine the relationship between mood and blood glucose in a 21-day daily diary study. Design: During a home visit, information was gathered from 206 persons with Type 2 diabetes regarding demographics, disease characteristics and treatment, and depressive symptoms. They had blood drawn at a laboratory, yielding HbA1C. The participants were then telephoned each evening for 21 days and were asked about their positive and negative mood during the past 24 hours. They also tested their blood glucose upon rising in the morning. Main Outcome Measures: The main outcomes measures were positive and negative affect and fasting glucose. Results: Multilevel analyses revealed a relationship between negative affect on one day and morning glucose on the next day. There was no such relationship between positive affect and glucose, nor was there a comparable effect of glucose on one day and either positive or negative affect on the next day. Conclusion: The observed relationship between mood and blood glucose appears to be because of negative affect, not positive, with no evidence of a lagged effect of glucose on mood. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Differential Associations of Dispositional Optimism and Pessimism With Coping, Goal Attainment, and Emotional Adjustment During Sport Competition.

This study examined the associations of dispositional optimism and pessimism with athletes' coping, goal attainment, and affective states during a sport competition. Results of path analyses showed that dispositional optimism and pessimism correlated differently with coping and affective variables. Mediating analyses indicated that task-oriented coping partially mediated the relationship of optimism with postcompetition positive affective state, whereas disengagement-oriented coping fully mediated the relationship of pessimism with postcompetition anger/dejection. Ancillary hierarchical regressions also indicated that distraction-oriented coping may lead to positive outcomes when used in concordance with task-oriented coping. Overall, these results lent credence to the utility of a bidimensional model of optimism and pessimism. (PsycINFO Database Record (c) 2010 APA, all rights reserved)