Relationship Between Childhood Trauma and Sleep Disturbances: The Role of Perceived Stress as a Mediator

The main objective of the current study was to analyze the mediating role of perceived stress on the relationship between childhood trauma and sleep disturbances among the adult population. The sample of this cross-sectional study was composed of 987 Portuguese adults with sleep disturbances, who completed a self-administered questionnaire about childhood trauma, sleep disturbances, and perceived stress. The results of analyses found that in the model that included the variables childhood trauma and perceived stress, both variables were predictors of sleep disturbances; however, perceived stress was the strongest predictor. Regarding the model with the subtypes of maltreatment, only Emotional Abuse predicted sleep problems. Results of the Path Analysis model showed that perceived stress partly mediates the effect of childhood trauma on adult sleep disturbances. This study has clinical implications, supporting the importance of taking into account childhood trauma and perceived stress during the assessment and intervention of sleep disturbances.     

Optimism predicting employees' creativity: The mediating role of positive affect and the positivity ratio

We examine how optimism predicts creativity both directly and through the mediating role of positive affect and the positivity ratio (the ratio between the frequency of positive and negative affective states). Five hundred and ninety five employees reported their positive and negative affect, as well as their optimism. Their creativity was reported by supervisors. The main findings are the following: (1) optimism predicts creativity both directly and through the mediating role of positive affect and the positivity ratio; (2) the relationship between the positivity ratio and creativity is curvilinear, in such a way that an “excessive” ratio is detrimental to creativity. The findings stress the relevance of optimism both for individuals and organizations, and suggest that examining positivity ratios is fruitful in the creativity domain, as it has been in other domains, and that negative affect should not be viewed simply as an obstacle when studying employees' creativity.     

Retail employees' self-efficacy and hope predicting their positive affect and creativity

The study shows how retail employees' self-efficacy and hope predict their creativity, both directly and through the mediating role of positive affect. Five hundred and seven retail employees reported their hope, self-efficacy, and positive affect, their supervisors reporting their creativity. Three main findings are: (1) hope and self-efficacy predict creativity; (2) positive affect also predicts creativity; (3) positive affect partially mediates the relationship between both dimensions of positive psychological capital (self-efficacy and hope), and creativity. The study suggests that retail organizations may foster employees' creativity by encouraging conditions that cultivate employees' hope and self-efficacy, as well as their positive affect.     

The politics of mental illness

What is needed today is a biologically grounded explanation of behavior, one that moves beyond the so‐called mind‐body problem. Yet no solution will be found by philosophers who refuse to learn about how brains and bodies work, or by neuroscientists pursuing experimental research based on outmoded or blatantly anti‐biological theories. Churchland's book proposes a solution: to come by a unified theory of the mind‐brain philosophers have to work together with neuroscientists. Yet Churchland's vision of a unified theory is based on an assumption that, while widely held, may not adequately reflect brain functioning in the production of behavior, namely, the assumption that brain processes represent. The present paper proposes an alternative view, suggesting that patterns of neural activity do not ‘represent’ anything, that brains do not ‘read’ or ‘transform’ representations, and that brains do not require representations to produce goal‐directed behavior. Representations are replaced by self‐organizing neural processes that achieve a certain end‐state of interaction between the organism and its environment in a flexible and adaptive manner. Some of the implications of this view for neuroscientific research and the philosophy of mind are outlined.     

Understanding Undergraduate Plagiarism in the Context of Students’ Academic Experience

Journal of Academic Ethics - Previous research has shown that student plagiarism is the product of interplay between individual and situational factors. The present study examined the relationship...     

The Discursive Frames of Political Psychology

The aim of this article is to apply elements of contemporary social theory to the major theoretical, methodological, and ideological divisions across political psychology and to consider both the origins and the impact of a range of theories and models. In so doing, we clarify some of the complexity surrounding the discursive and cultural origins of political psychology. On the basis of this analysis, we aim to overcome the redundant binaries and dualisms—both conceptual and geo‐spatial—that have characterized the field up to now. These binary pairs relate to matters of epistemology, ideology, and methodology, and we show how each pair has been the basis of claims made regarding continental differences. As we shall see, such black‐and‐white thinking limits our capacity to understand the nature and potential of political psychology. Instead we wish to encourage a greater degree of universalism and globalism that is appropriate to political psychology as it evolves into a broader global discipline. We argue that political psychology as a field must attempt to deal with the consequences of an increasingly borderless world in which political identities are becoming more fluid, increasingly hybridized, and open to transformation.     

Improvement in physiological and psychological parameters after 6 months of yoga practice

Yoga is believed to have beneficial effects on cognition, attenuation of emotional intensity and stress reduction. Previous studies were mainly performed on eastern experienced practitioners or unhealthy subjects undergoing concomitant conventional therapies. Further investigation is needed on the effects of yoga per se, as well as its possible preventive benefits on healthy subjects. We investigated the effects of yoga on memory and psychophysiological parameters related to stress, comparing yoga practice and conventional physical exercises in healthy men (previously yoga-naïve). Memory tests, salivary cortisol levels and stress, anxiety, and depression inventories were assessed before and after 6 months of practice. Yoga practitioners showed improvement of the memory performance, as well as improvements in psychophysiological parameters. The present results suggest that regular yoga practice can improve aspects of cognition and quality of life for healthy individuals. An indirect influence of emotional state on cognitive improvement promoted by yoga practice can be proposed.     

Under what conditions would people be willing to make a living organ donation?

The aim was to examine the factors involved in people's willingness to make a living organ donation. A convenience sample of 200 people in southern France rated willingness to be a living donor in 48 scenarios consisting of all combinations of five factors: recipient's identity (close family member and city resident); donor's surgical risk (little and some); donor's possible long-term health consequences (none, some lessening over time, and durable); transplant success ("generally durably successful" and "durably successful one time out of two"); and likelihood of other donors (subject is one of the rare compatible donors or one among others). Cluster analyses showed the existence of three distinct organ donation philosophies. For the largest cluster (49% of participants), willingness to donate was very high to a family member, but low to a city resident. For the second cluster (37%), willingness was high to family, but also moderately high to a city resident. For the third cluster (14%), willingness was always low. Thus, most participants judged themselves ready to make a living organ donation to a family member and many even to a stranger.