Noncontingent positive and negative feedback during maximal exercise.

A closed skill, maximal effort on a bicycle ergometer was used to study the effects of noncontingent external feedback on performance, perceived effort, and the subject's assessment of the quality and accuracy of the feedback. The 47 subjects included elite athletes as well as physical education majors. They were asked to perform a series of 5 60-sec. trials of maximal effort, trials which included positive, negative, positive and negative, and no-feedback conditions. Although there were no significant effects on performance for the various feedback conditions, subjects judged the positive feedback favourably and as accurate, but negative feedback was judged unfavourably and considered to be inaccurate. This result is seen as supportive of the 1982 McCarrey, et al. supposition that successful athletes may have less need to internalize attributions of effect.     

Sex differences in correlations between personal incentives and self-motivation, and occurrence of perceived positive changes in feeling states after exercise

Personal incentives for exercising of weight management and appearance improvement were significantly correlated with percentage of positive exercise-induced feeling changes in women (n=23) and men (n=20) initiating 12-wk. exercise programs. No significant differences were found by sex. Self-motivation was also significantly related to occurrence of positive feeling changes for men.     

Intensity and frequency: dimensions underlying positive and negative affect

Research on emotions and several happiness scales suggest that positive and negative affect are strongly inversely correlated. However, work on subjective well-being indicates that over time, positive and negative affect are independent across persons. In order to reconcile this inconsistency, two dimensions are proposed for personal affective structure: the frequency of positive versus negative affect and the intensity of affect. Subjects in three studies completed daily and momentary reports on their moods. In support of the intensity dimension, the correlations between positive and negative intensity were strong and positive in all three studies. The intensities of specific emotions across persons were also highly correlated. Across the three studies the frequency and intensity of affect varied independently. Although average levels of positive and negative affect showed low correlations, this relation became strongly inverse when intensity was partialed out. Thus the intensity dimension helps explain the relative independence of positive and negative affect. In addition, emotional intensity is offered as a new personality dimension that manifests interesting characteristics.     

Appearance-based exercise motivation moderates the relationship between exercise frequency and positive body image

Individuals with a positive body image appreciate their bodies, hold an internal perspective of their bodies, and are satisfied with the functionality of their bodies. Research shows that positive body image is more complex than the absence of body dissatisfaction. Although exercise reduces women's body dissatisfaction, very little research has explored how, or even whether, exercise is associated with positive body image. Therefore, we examined whether exercise frequency was positively related to three aspects of positive body image (body appreciation, internal body orientation, and functional body satisfaction) among 321 college women. Appearance-based exercise motivation (the extent exercise is pursued to influence weight or shape) was hypothesized to moderate these associations. Hierarchical moderated regression analyses showed that exercise frequency was related to higher positive body image, but high levels of appearance-based exercise motivation weakened these relationships. Thus, messages promoting exercise need to de-emphasize weight loss and appearance for positive body image.     

Hooked on a feeling: rumination about positive and negative emotion in inter-episode bipolar disorder

Rumination has been consistently implicated in the onset and maintenance of depression. Less work has examined rumination in the context of bipolar disorder, especially rumination about positive emotion. The present study examined rumination about negative and positive emotion in interepisode bipolar disorder (BD; n = 39) and healthy controls (CTL; n = 34). Trait rumination about positive and negative emotion, as well as experiential and physiological responses to a rumination induction, was measured. Illness course was also assessed for the BD group. Results indicated that the BD group reported greater trait rumination about positive and negative emotion compared with the CTL group, though no group differences emerged during the rumination induction. For the BD group, trait rumination about positive and negative emotion, as well as increased cardiovascular arousal (i.e., heart rate), was associated with greater lifetime depression frequency; trait rumination about positive emotion was associated with greater lifetime mania frequency. These findings suggest that interepisode BD is associated with greater rumination about positive and negative emotion, which in turn is associated with illness course.     

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.     

Producing either positive or negative tendencies to a stimulus associated with shock

A technique is described in which rats are pretrained with reinforcement to bar press. Each bar press was associated with a tone. This tone was later paired with one of two aspects of an electric shock, either at the onset or at the end of the shock, in a situation in which the shock is inescapable. These animals were retested in the operant situation under conditions of extinction, but with tone present as a conditioned reinforcer. The finding was that animals for which the tone was associated with shock onset extinguished quickly, whereas animals for which the tone was paired with shock termination extinguished more slowly.     

The ambivalence of challenge stressors: Time pressure associated with both negative and positive well-being

According to the challenge–hindrance model, challenge stressors contain both stressful and challenging aspects, hindrance stressors only stressful aspects. Typically, negative outcomes of challenge stressors refer to well-being (strain), positive outcomes to so-called work outcomes (e.g., productivity, intention to quit). As both effects occur simultaneously, the positive outcomes often emerge only when controlling for the negative effects. We suggest that the negative and the positive effects of challenge stressors may refer to well-being. Specifically, we propose challenge to indicate competence, thus fostering organization-based self-esteem (OBSE), which, in turn, should enhance more general indicators of positive well-being. We explored the effect of time pressure (a prototypical challenge stressor) on a general well-being variable (positive attitude towards life; PAL). We postulated challenge stressors to be associated with PAL positively via OBSE and negatively via strain. These processes should (a) result in a non-significant bivariate association, which should (b) become significant once strain is controlled (suppression), but (c) become insignificant again once OBSE is controlled (mediation). Using structural equation modeling, we could confirm our hypotheses in a cross-sectional study. Results confirm the inherently ambivalent nature of time pressure, containing both positive and negative variance. In line with our theoretical position, results suggest that the negative and the positive outcomes may be conceived in terms of different aspects of well-being, in addition to “work outcomes” that do not refer to well-being. This concept of challenge stressors may help to explain why many people do not reduce challenge stressors even when they could: Feeling good about themselves and their lives may, at least temporarily, outweigh the strain.     

The effect of multiple negative,neutral, and positive organizational changes

Organizational change research has largely concluded that employees appraise changes in their workplace negatively and thus respond negatively to greater amounts of change. However, whether this conclusion is warranted remains unclear because previous research has examined single workplace changes in isolation or asked employees to make a global assessment of the changing nature of their workplace. Researchers have not had the means to capture the number of changes employees experience or their appraisals of the many different changes occurring in their workplace. In this study, we developed and validated the Quantity of Change Scale (QCS) to provide a more nuanced understanding of employees’ appraisals of their changing workplace. We found that the negative changes employees experience disproportionately influenced their reactions to the changing work environment. However, we also demonstrated that contrary to popular belief, employees appraised fewer changes as negative than as positive or neutral. Together these findings provide new insight into why assessments of employees’ general reactions to workplace change tend to be negative. We discuss the theoretical and practical implications of our empirical examination of employees’ appraisals of the many changes in their workplace.     

Associations of positive and negative life changes with well-being in young and middle-aged adult cancer survivors

Both positive and negative changes are commonly reported by cancer survivors, and both may impact quality of life. Yet few studies have directly compared the associations of positive and negative changes across multiple life domains with multiple aspects of well-being. This study examined positive and negative changes and their conjoint relation to a range of well-being indices. We used correlational and regression analyses of data from 237 young to middle aged (X?=?45.3?years) cancer survivors, several years after treatment. Measures included demographic and medical variables, medical post-cancer positive and negative changes on multiple life domains, and a range of positive and negative adjustment indices. Demographic factors, especially income, related to both positive and negative outcomes. On average, participants reported no change on most life domains, although modest amounts of both positive and negative changes were reported. Negative change, rather than positive change, was closely associated with cancer survivors' adjustment. Detailed measurement of both positive and negative changes - as well as lack of change - is important to advance understanding of cancer's impact on survivors.     

Associations of positive and negative life changes with well-being in young and middle-aged adult cancer survivors

Both positive and negative changes are commonly reported by cancer survivors, and both may impact quality of life. Yet few studies have directly compared the associations of positive and negative changes across multiple life domains with multiple aspects of well-being. This study examined positive and negative changes and their conjoint relation to a range of well-being indices. We used correlational and regression analyses of data from 237 young to middle aged (X?=?45.3?years) cancer survivors, several years after treatment. Measures included demographic and medical variables, medical post-cancer positive and negative changes on multiple life domains, and a range of positive and negative adjustment indices. Demographic factors, especially income, related to both positive and negative outcomes. On average, participants reported no change on most life domains, although modest amounts of both positive and negative changes were reported. Negative change, rather than positive change, was closely associated with cancer survivors’ adjustment. Detailed measurement of both positive and negative changes – as well as lack of change – is important to advance understanding of cancer's impact on survivors.     

Normative evaluations and frequency expectations regarding positive versus negative outcome allocations between groups

Data from several recent studies consistently show a positive–negative asymmetry in social discrimination: within a minimal social situation tendencies towards ingroup favouritism which usually appear in allocations of positively valenced resources are absent in the domain of negatively valenced stimuli. The present study investigates whether this valence-asymmetry has any correspondence to variations in normative evaluations of positive versus negative outcome allocations. For this purpose perceptions of normative appropriateness as well as frequency expectations of outside observers regarding outcome allocations made by categorized group members were investigated. Results show that parity choices were perceived as more normatively appropriate than out- or ingroup favouritism. While outgroup favouritism was judged as inappropriate as ingroup favouritism for positive resources, ingroup favouring decisions for negative resources were perceived as the least appropriate response within the minimal social situation. In addition, in contrast to results of St. Claire and Turner (1982) non-categorized subjects expected ingroup favouring decisions by group members more frequently than parity or outgroup favouring choices with respect to positively valanced resources. When, however, negative resources were to be allocated, outgroup favouritism was predominantly expected. Results are discussed in terms of justice considerations and are linked to a normative account of the positive--negative asymmetry in social discrimination. © 1997 John Wiley & Sons, Ltd.     

Self-ratings of positive and negative affect and retrieval of positive and negative affect memories

Abstract

Based on analysis of self-ratings of mood, positive affect (PA) and negative affect (NA) have been proposed as basic, orthogonal mood dimensions (Watson & Tellegen, 1985). The present study asked subjects (N = 61) to not only provide self-ratings of PA and NA terms but also to retrieve personal memories associated with those terms. Self-rated PA was associated with latency to retrieve PA- but not NA-related memories; self-rated NA was associated with latency to retrieve NA- but not PA-related memories. Self-ratings of PA and NA were not significantly correlated, nor were retrieval latencies for PA and NA memories. Individual item correlations also revealed a strong direct relationship between self-ratings and retrieval latency. The dissociations involving a non-self report measure strengthen the distinction between PA and NA, and the individual item correlations are interpreted as showing that self-ratings of affect are based upon the ease of retrieval of personal memories.     

Concurrent TMS-EEG and EEG reveal neuroplastic and oscillatory changes associated with self-compassion and negative emotions

Background/ObjectiveSelf-compassion has a consensual relevance for overall mental health, but its mechanisms remain unknown. Using intermittent theta burst stimulation (iTBS) and concurrent transcranial magnetic stimulation-electroencephalography (TMS-EEG), this study investigated the causal relationship of the dorsolateral prefrontal cortex (DLPFC) with self-compassion and explored the changes in neuroplasticity and neural dynamics.MethodThirty-two healthy participants received iTBS or sham stimulation over the DLPFC, before and after which they were instructed to either use self-compassionate strategies or to be rejected in the context of social rejection and to report the level of self-compassion or negative affect. TMS-evoked potentials were evaluated as novel neuroplastic techniques with N45, P60, N100, and P180.ResultsiTBS uniquely decreased P180 amplitude measured with TMS-EEG whereby sham stimulation had no effect on neuroplasticity. In line with neuroplasticity changes, iTBS enhanced a widespread gamma band power and coherence, which correlated consistently with increased engagement in self-compassion. Meanwhile, iTBS demonstrated opposite effects on theta activity dependent on the social contexts whereby self-compassion decreased and social rejection enhanced it respectively. This unique effect of iTBS on theta activity was also supplemented by the enhancement of theta band coherence following iTBS.ConclusionsWe found a causal relationship between DLPFC and self-compassion. We also provide evidence to indicate widespread gamma activity and connectivity to correlate with self-compassion as well as the critical role of the DLPFC in modulating theta activity and negative emotions.     

Relationship between changes in acute exercise-induced feeling states,self-motivation,and adults' adherence to moderate aerobic exercise

A 14-wk. field study was conducted to estimate a correlation between feeling-state changes induced by moderate (50 to 74% VO2 max; 20 to 30 min.) bouts of cardiovascular exercise and attendance in a new exercise program. Three groups of men and women (ns=22 to 24) were formed for comparative analysis based upon participants' self-motivation (high, medium, low), as measured by the Self-motivation Inventory. Analysis indicated that for the low self-motivation group, attendance was positively correlated with before-to-after exercise difference scores in the Exercise-induced Feeling Inventory subscales of Positive Engagement (r(s)=.48), Revitalization (r(s)=.47). and Tranquility (r(s)=.41) and negatively correlated with difference scores in the Physical Exhaustion subscale (r(s)=-.62). Conversely, for the high self-motivated group generally weaker correlations in the opposite direction were found for each subscale. No definitive pattern was found for the medium self-motivation group. Multiple regression analyses conducted with scores on each Exercise-induced Feeling Inventory subscale supported the moderating effect of Self-motivation Inventory score on exercise attendance: Multiple R2s =.20 to .27. Although limited amounts of the total variance in exercise attendance was explained, practical implications are drawn for prescribing exercise by feeling states. Limitations and replication of results using different types samples and types of exercise are discussed.     

Effect of aerobic exercise on negative affect, positive affect, stress, and depression.

Three groups of subjects, 15 Longer-term Exercisers, 14 Short-term Exercisers, and 18 Nonexercisers completed questionnaires designed to measure negative affect associated with thoughts, negative affect associated with day-to-day experiences, positive affect associated with thoughts, and positive affect associated with day-to-day experiences, depression, and stress. All the subjects also provided a rating of their over-all general stress. The Longer-term Exercisers reported more positive affect associated with their thoughts and day-to-day experiences than the Nonexercisers. There also was a trend for the Longer-term Exercisers to report less over-all stress than the Nonexercisers.     

Therapy experience in naturalistic observational studies is associated with negative changes in personality

Recent research has shown that personality traits change as a result of clinical therapy, although evidence for this effect is derived from efficacy studies that reflect relatively controlled experimental designs. Little is known about how therapy in real world contexts affects change in personality. In two longitudinal studies (N’s = 1270 and 5217), the present research examined whether personality trait change was associated with therapy experience. Propensity score matching was used to compare trajectories of personality trait change in individuals with and without therapy experiences. Overall, therapy experiences were associated with significant increases in undesirable traits and markers (e.g., chronic stress, depression, neuroticism), and significant decreases in desirable traits (e.g., self-esteem, conscientiousness).     

Varieties of positive and negative priming

Numerous recent investigations have focused on a particular relation between the roles a stimulus plays in successive displays: when a stimulus ignored by a subject on one occasion is to be attended on a succeeding occasion, reaction time to that stimulus is slowed relative to a control condition. But this is but one possible case ofnegative priming. There are other ways in which negative priming might occur, and there are several varieties of positive priming as well. All these possibilities were explored in the present experiment.     

Current negative mood encourages changes in end-of-life treatment decisions and is associated with false memories

To investigate the effects of mood on people's end-of-life treatment decisions and their false memories of those decisions, participants took part in two sessions. At Time 1, participants were experimentally induced into positive or negative moods. They decided whether they would want to receive or refuse treatments in a range of hypothetical medical scenarios, such as tube feeding while in a coma. Four weeks later, at Time 2, participants were induced into the same or the opposite mood and made these decisions a second time. They also recalled their previous decisions. Participants in negative moods at Time 2 changed more of their current decisions and falsely remembered more of their previous decisions than participants in positive moods. These findings suggest that people's current moods influence whether they change their treatment decisions; current decisions in turn bias recall of past decisions.     

Assessing positive and negative changes in the aftermath of adversity: psychometric evaluation of the changes in outlook questionnaire

The Changes in Outlook Questionnaire (CiOQ; S. Joseph, R. Williams, & W. Yule, 1993) is a 26-item self-report measure that was designed to assess positive and negative changes in the aftermath of adversity. This article had 3 aims: 1st, to investigate the factor structure of the CiOQ; 2nd, to test for internal consistency reliability and convergent and discriminant validity; and, 3rd, to investigate the association between positive and negative changes in outlook, posttraumatic stress, and psychological distress. Three studies are reported. Study 1 provides evidence that positive and negative changes are statistically separable and that the 2-factor model is a better fit than the 1-factor model. Studies 2 and 3 provide evidence for internal consistency reliability, convergent and discriminant validity of the CiOQ, and its associations with posttraumatic stress and psychological distress. In conclusion, the CiOQ has much promise for research on responses to stressful and traumatic events.