452 research outputs found
Psychosocial Functioning and the Cortisol Awakening Response: Meta-Analysis, \u3cem\u3eP\u3c/em\u3e-Curve Analysis, and Evaluation of the Evidential Value in Existing Studies
Cortisol levels rise immediately after awakening and peak approximately 30-45 minutes thereafter. Psychosocial functioning influences this cortisol awakening response (CAR), but there is considerable heterogeneity in the literature. The current study used p-curve and metaanalysis on 709 findings from 212 studies to test the evidential value and estimate effect sizes of four sets of findings: those associating worse psychosocial functioning with higher or lower cortisol increase relative to the waking period (CARi) and to the output of the waking period (AUCw). All four sets of findings demonstrated evidential value. Psychosocial predictors explained 1%-3.6% of variance in CARi and AUCw responses. Based on these effect sizes, cross-sectional studies assessing CAR would need a minimum sample size of 617-783 to detect true effects with 80% power. Depression was linked to higher AUCw and posttraumatic stress to lower AUCw, whereas inconclusive results were obtained for predictor-specific effects on CARi. Suggestions for future CAR research are discussed
High Trait Shame Undermines the Protective Effects of Prevalence Knowledge on State Shame Following HPV/CIN Diagnosis in Women
Human papillomavirus (HPV), and the related, cervical intraepithelial neoplasia (CIN), are common yet poorly understood physical conditions. The diagnosis of HPV often elicits shame and guilt, which in turn may undermine psychological and physical health. The current study compared shame and guilt responses to diagnosis among two groups: women diagnosed with HPV/CIN and women diagnosed with Epstein–Barr Virus (EBV/IM). Eighty women recently diagnosed with HPV/CIN or EBV/IM completed measures of shame- and guilt-proneness, shame and guilt following diagnosis, and disease knowledge including prevalence estimates (HPV and EBV, respectively). HPV/CIN (vs. EBV/IM) predicted more diagnosis-related shame and guilt. Estimates of high prevalence interacted with diagnosis and shame-proneness to predict diagnosis-related shame. Simple slope analyses indicated that in women with HPV/CIN reporting low-to-average shame-proneness, high prevalence estimates reduced diagnosis-related shame; however, women high in shame-proneness experienced high diagnosis-related shame regardless of more accurate prevalence estimates. Women high in shame-proneness appear to be particularly vulnerable to HPV-related shame even when they are aware that it is very common
The SNAPSHOT study protocol : SNAcking, Physical activity, Self-regulation, and Heart rate Over Time
Peer reviewedPublisher PD
Facial expressions depicting compassionate and critical emotions: the development and validation of a new emotional face stimulus set
Attachment with altruistic others requires the ability to appropriately process affiliative and kind facial cues. Yet there is no stimulus set available to investigate such processes. Here, we developed a stimulus set depicting compassionate and critical facial expressions, and validated its effectiveness using well-established visual-probe methodology. In Study 1, 62 participants rated photographs of actors displaying compassionate/kind and critical faces on strength of emotion type. This produced a new stimulus set based on N = 31 actors, whose facial expressions were reliably distinguished as compassionate, critical and neutral. In Study 2, 70 participants completed a visual-probe task measuring attentional orientation to critical and compassionate/kind faces. This revealed that participants lower in self-criticism demonstrated enhanced attention to compassionate/kind faces whereas those higher in self-criticism showed no bias. To sum, the new stimulus set produced interpretable findings using visual-probe methodology and is the first to include higher order, complex positive affect displays
Facts and distortions in an endogenous growth model with physical capital, human capital and varieties
This article studies a model with physical and human capital accumulation and varieties. The model includes several distortions: duplication effects, spillovers, creative destruction, surplus appropriability, and an erosion effect. We show that the duplication effect in R&D is essential to make the model replicate several stylized facts linked with R&D. We evaluate the distance to the optimal solution, comparing the strength of each distortion.info:eu-repo/semantics/publishedVersio
The Integrative Effects of Cognitive Reappraisal on Negative Affect: Associated Changes in Secretory Immunoglobulin A, Unpleasantness and ERP Activity
Although the regulatory role of cognitive reappraisal in negative emotional responses is widely recognized, this reappraisal's effect on acute saliva secretory immunoglobulin A (SIgA), as well as the relationships among affective, immunological, and event-related potential (ERP) changes, remains unclear. In this study, we selected only people with low positive coping scores (PCSs) as measured by the Trait Coping Style Questionnaire to avoid confounding by intrinsic coping styles. First, we found that the acute stress of viewing unpleasant pictures consistently decreased SIgA concentration and secretion rate, increased perceptions of unpleasantness and amplitude of late positive potentials (LPPs) between 200–300 ms and 400–1000 ms. After participants used cognitive reappraisal, their SIgA concentration and secretion rate significantly increased and their unpleasantness and LPP amplitudes significantly decreased compared with a control condition. Second, we found a significantly positive correlation between the increases in SIgA and the decreases in unpleasantness and a significantly negative correlation between the increases in SIgA and the increases in LPP across the two groups. This study is the first to demonstrate that cognitive reappraisal reverses the decrease of SIgA. In addition, it revealed strong correlations among affective, SIgA and electrophysiological changes with convergent multilevel evidence
Dispositional optimism as a correlate of decision-making styles in adolescence
Despite the numerous psychological areas in which optimism has been
studied, including career planning, only a small amount of research has been done to
investigate the relationship between optimism and decision-making styles. Consequently,
we have investigated the role of dispositional optimism as a correlate of different
decision-making styles, in particular, positive for effective styles and negative for
ineffective ones (doubtfulness, procrastination, and delegation). Data were gathered
through questionnaires administered to 803 Italian adolescents in their last 2 years of
high schools with different fields of study, each at the beginning stages of planning
for their professional future. A paper questionnaire was completed containing measures
of dispositional optimism and career-related decision styles, during a vocational
guidance intervention conducted at school. Data were analyzed using stepwise multiple
regression. Results supported the proposed model by showing optimism to be a strong
correlate of decision-making styles, thereby offering important intervention guidelines
aimed at modifying unrealistically negative expectations regarding their future and
helping students learn adaptive decision-making skills
The Role of Rumination and Reduced Concreteness in the Maintenance of Posttraumatic Stress Disorder and Depression Following Trauma
Rumination has been linked to posttraumatic stress disorder (PTSD) and depression following trauma. A cross-sectional (N = 101) and a prospective longitudinal study (N = 147) of road traffic accident survivors assessed rumination, PTSD and depression with self-report measures and structured interviews. We tested the hypotheses that (1) rumination predicts the maintenance of PTSD and depression and (2) reduced concreteness of ruminative thinking may be a maintaining factor. Rumination significantly predicted PTSD and depression at 6 months over and above what could be predicted from initial symptom levels. In contrast to the second hypothesis, reduced concreteness in an iterative rumination task was not significantly correlated with self-reported rumination frequency, and did not consistently correlate with symptom severity measures. However, multiple regression analyses showed that the combination of reduced concreteness and self-reported frequency of rumination predicted subsequent PTSD better than rumination frequency alone. The results support the view that rumination is an important maintaining factor of trauma-related emotional disorders
Partnering Universities and Companies in Russia: Effects of New Government Initiative
The paper presents the results of 2-year survey conducted in 2011-2012 among Russian universities and companies who jointly implement R&D projects aimed at development of high-tech manufacturing. The joint projects represent a new government instrument to stimulate the development of linkages between universities and companies by giving matching grants for R&D to companies with obligation to order R&D to a university-partner.
The objectives of the survey included analysis of motivation for cooperation both from side of universities and companies; primary effects and side-effects of such initiative; changes that may be introduced to the government regulations concerning matching grants.
Total 38 teams were surveyed. Our findings show that major motivations from side of universities were access to new practical research tasks from companies, selection of most competitive teams of researchers capable to work with companies, and strengthening reputation in business environment. Companies were interested in getting government funding in order to solve their technological problems; to strengthen, due cooperation with universities, their research capacity, and to use modern research infrastructure located at universities.
The analysis allowed identification of the major effects of the matching grants mechanism. They included: strengthening of university orientation towards solving practical tasks which are of interest to business; institutionalization of relations between universities and business in the sphere of innovation activity; broadening of research cooperation and the formation of research consortiums; harmonization of research and educational tasks in universities, and orientation of the parties towards continuing cooperation in the innovation sphere
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