Relationship between anxiety and dyspnea on exertion in patients with chronic obstructive pulmonary disease

Abstract

Dyspnea limits exercise in patients with chronic obstructive pulmonary disease (COPD) and is known to induce anxiety. Little is known whether anxiety contributes to exercise-induced dyspnea, which in turn might influence the outcome of diagnostic tests. The aim of the present study was to examine the relationship between general anxiety and dyspnea on exertion in patients with COPD.

Ninety patients with stable COPD participated; 44 men, mean age 61 (standard deviation (SD) 10.4), and mean forced expiratory volume in 1 second (%pred.) 40.5 (SD 16.9). All participants performed pulmonary function tests and an incremental cycle ergometry. The Modified Borg Scale was used to measure the level of dyspnea on exertion. Anxiety symptoms were assessed with the Hospital Anxiety and Depression Scale. Data were analyzed using Spearman's correlations and multivariate regression. Dyspnea on exertion was correlated with general anxiety (r=.31), age (r=–.30), and exercise capacity (r=.27). Regression analysis showed that general anxiety was associated with dyspnea on exertion, adjusted for sex, age, baseline dyspnea, and exercise capacity. Consequently, it is reasoned that results of exercise training and activities in daily living may be influenced negatively by anxiety-worsened dyspnea. Attention should be given to anxiety management in patients with COPD to optimize exercise training.     

Improving Teacher Job Satisfaction: The Roles of Social Capital,Teacher Efficacy,and Support

In this study, we examine how social capital, teacher efficacy, and organizational support increase teacher job satisfaction. Research suggests that teachers worldwide are exceedingly dissatisfied with their jobs and have significantly higher levels of turnover than their counterparts in other professions. We investigate this phenomenon using a sample of 122 elementary school teachers. We found that teachers’ centrality position, or each teacher’s relationship with every other teacher, in their school’s trust network and the density of a teacher’s academic advice ego-network predicted the development of teacher job satisfaction. Additionally, we found that teacher efficacy mediated the relationship between teacher’s trust and academic advice relationships and job satisfaction, and perceived organizational support strengthened the relationship between teacher efficacy and job satisfaction. The article concludes by offering implications of the findings for both administrators and teachers as well as for the social capital, teaching efficacy, and teacher job satisfaction literatures.     

The relation between antisocial personality and the perceived ability to deceive

The current study investigated relations between the perceived ability to deceive and the Dark Triad personality traits in two samples. In study 1, the sample consisted of 1074 participants (329 male, 745 female) aged 17–71 years (M = 22.96, SD = 6.92). Participants completed the perceived ability to deceive scale, in which they were asked to estimate the percentage of people who are worse at lying than they are in a number of situations. Participants also completed the Short-D3 – a measure of the Dark Triad personality traits. As expected, correlational analyses demonstrated that Machiavellianism was most highly correlated with the perceived ability to deceive (r = .41), followed by psychopathy (r = .35), and narcissism (r = .33). These findings were replicated in study 2, which consisted of 1448 undergraduate students (498 males, 947 females, 3 other), aged 18–43 (M = 18.35, SD = 1.77). Study 2 also investigated the association of the Dark Triad and perceived ability to deceive with dimensions of the Big Five model of personality. Implications are discussed.     

Adolescents with high mental toughness adapt better to perceived stress: A longitudinal study with Swiss vocational students

A mindset of mental toughness enables an individual to cope successfully with the pressures and demands of life. This 10-month study prospectively examined the association between mental toughness and stress resilience in 865 students (M = 17.86 years, 42.7% girls) from two vocational schools. Within each school, separate cluster analyses identified groups with different profiles of risk (assessed with perceived stress) and adaptation (operationalized with depressive symptoms and life satisfaction). Four clusters emerged characterizing students with well-adjusted (low risk, good adaptation), maladjusted (elevated risk, bad adaptation), deteriorated (low initial risk, worsening adaptation) and resilient profiles (elevated initial risk, improving adaptation). The latter two clusters reported similar levels of mental toughness at baseline, but resilient adolescents scored significantly higher on mental toughness at follow-up. After controlling for possible confounds, baseline toughness levels predicted depressive symptoms and life satisfaction over time. This study shows that mental toughness operates as a stress resilience resource. Mental toughness is, therefore a topic of interest for health specialists working with adolescent populations.     

Sex differences in children's discrepant perceptions of peer acceptance

Sex differences in children's play patterns during middle childhood are thought to promote greater awareness of social acceptance among girls compared with boys. The present study posited that girls are more discerning of peer acceptance than are boys; however, these sex differences were predicted to vary depending on how discrepant perceptions were assessed (i.e., inaccuracy versus bias). Additional differences were expected if children perceived acceptance by same- versus opposite-sex peers. Participants were 912 third through fifth graders (420 girls and 492 boys). Consistent with predictions, boys were more inaccurate than girls, but only for perceived acceptance by same-sex peers. As expected, girls were more negatively biased than boys, but only for perceived acceptance by opposite-sex peers. Results did not support the hypothesis that boys have more positively biased perceptions of peer acceptance than girls. Overall, these findings raise important issues regarding the evaluation of children's discrepant self-perceptions of peer acceptance.     

Story Perspective and Character Similarity as Drivers of Identification and Narrative Persuasion

Identification with a character is an important mechanism of narrative persuasion. In 2 studies, the impact of character similarity on identification was pitted against that of story perspective. Participants read stories in which a lawyer (Study 1) and a general practitioner (GP; Study 2) had a conflict with another character. Perspective was manipulated by describing the events as experienced and narrated by the lawyer (GP) or their opponent. In Study 1 (N = 120), 60 participants were law students, in Study 2 (N = 120) 60 were medical students. Both perspective and program of study influenced identification, which mediated the impact of perspective on attitude. If participants felt highly similar to the professional's opponent, the mediating effect of identification was blocked.     

Individual differences in the perception of similarity and difference

Thematically related concepts like coffee and milk are judged to be more similar than thematically unrelated concepts like coffee and lemonade. We investigated whether thematic relations exert a small effect that occurs consistently across participants (i.e., a generalized model), or a large effect that occurs inconsistently across participants (i.e., an individualized model). We also examined whether difference judgments mirrored similarity or whether these judgments were, in fact, non-inverse. Five studies demonstrated the necessity of an individualized model for both perceived similarity and difference, and additionally provided evidence that thematic relations affect similarity more than difference. Results suggest that models of similarity and difference must be attuned to large and consistent individual variability in the weighting of thematic relations.     

Crying: discussing its basic reasons and uses

Crying can occur in a great variety of contexts, including fulfilment and happiness as well as failure, loss, and sadness or other negative feelings, such as anger and guilt. Despite such differences, we have tried to identify a unitary underlying psychological cause for crying: perceived helplessness. We explore the different crying situations, describing the basic cognitive ingredients and critical steps in the process leading to crying. We start from those situations which directly imply personal frustration and suffering, then we consider empathic crying, crying for joy, and “aesthetic” crying, i.e., crying elicited by aesthetic experiences. We try to show that all of them imply a common core: some frustration (anticipated, actual, or previous), one's attempt to resist, perceived helplessness, and surrender to frustration. Finally, we address both the psychological benefits and costs of crying, either expected or unexpected, showing their links with perceived helplessness.     

The Creative Product and Process in Computer‐Mediated Groups

The effects of information technology on the creative performance in small groups were examined. An experimental 3 × 2 design was used in order to assess the effects of Group Communication Support System (GCSS) and perceived usefulness on the creative product and the creative process. A chat, a video conference and a face‐to‐face group were compared. The consensual technique was used to obtain measurements of creativity. The results of the analysis of variance indicated that the face‐to‐face group evoked more creative results than the other two. The more real life‐like the conditions were the better fluency of ideas. The video conference group scored significantly lower on incubation in the creative process. No effects were found concerning the participants' perceived usefulness. Participants in the face‐to‐face group reported themselves to be more satisfied with both their product and process than the participants in the computer‐mediated groups. The study suggests that the measurement of both the creative product and the creative process can contribute to the research on how GCSS affects creative performance.     

Competency development and career success: The mediating role of employability

The present study aims to unravel the relationship between competency development, employability and career success. To do so, we tested a model wherein associations between employee participation in competency development initiatives, perceived support for competency development, self-perceived employability, and two indicators of subjective career success (i.e. career satisfaction and perceived marketability) have been specified. A survey was conducted among a sample of 561 employees of a large financial services organization. The results support the idea that employee participation in competency development initiatives as well as perceived support for competency development is positively associated with workers' perceptions of employability. Moreover, self-perceived employability appeared to be positively related with career satisfaction and perceived marketability. A full mediation effect was found for the relationship between participation in competency development initiatives and both career satisfaction and perceived marketability, while a partial mediation effect was found in case perceived support for competency development was the predictor variable. The implications of our findings for understanding the process through which individuals and organizations can affect subjective career success are discussed.