Regulation of hypothalamic-pituitary-adrenal activity in response to cognitive therapy in patients with generalized anxiety disorder

The aim of this study was to evaluate the efficacy of cognitive therapy (CT) in the treatment of generalized anxiety disorder (GAD), as it would be reflected through both psychological and psychoneuroendocrinological parameters. For this purpose, a group of outpatients with GAD were treated with CT for up to a maximum of 24 sessions. In order to assess psychological and biological changes, anxiety-related symptoms were evaluated according to the Hamilton Anxiety Rating Scale (HAM-A), and the hypothalamic-pituitary-adrenal (HPA) function was determined through assessment of circulating cortisol levels. A significant decrease in the HAM-A scores, along with significant changes in plasma cortisol levels, were observed after completion of treatment with CT. These observations contribute to demonstrate that the effect of certain psychotherapeutic approaches, such as CT, may be observed at both psychological and biological levels.     

Adolescents' academic expectations and achievement

Previous research has indicated that adolescents' relationships with their mother influence their academic expectations and achievement. Substance use has also been found to have a strong influence on academic expectations and achievement. In the present study, 80 high school seniors from middle to upper socioeconomic status families completed questionnaires on behavioral and psychological aspects of adolescent life. Academic expectations were found to be highly correlated with academic achievement (r = .60). A stepwise regression analysis revealed that relationship with mother, academic achievement, and alcohol use accounted for 56% of the total variance in academic expectations. Stepwise regression on academic achievement revealed that cocaine use, marijuana use, and academic expectations accounted for 48% of the total variance.     

Increased perceived stress is associated with blunted hedonic capacity: potential implications for depression research

Preclinical studies suggest that stress exerts depressogenic effects by impairing hedonic capacity; in humans, however, the precise mechanisms linking stress and depression are largely unknown. As an initial step towards better understanding the association between stress and anhedonia, the present study tested, in two independent samples, whether individuals reporting elevated stress exhibit decreased hedonic capacity. The Perceived Stress Scale (PSS) measured the degree to which participants appraised their daily life as unpredictable, uncontrollable, and overwhelming. Hedonic capacity was objectively assessed using a signal-detection task based on a differential reinforcement schedule. Decreased reward responsiveness (i.e., the participants' propensity to modulate behavior as a function of reward) was used as an operational measure of hedonic capacity. In both Study 1 (n=88) and Study 2 (n=80), participants with high PSS scores displayed blunted reward responsiveness and reported elevated anhedonic symptoms. Additionally, PSS scores predicted reduced reward responsiveness even after controlling for general distress and anxiety symptoms. These findings are consistent with preclinical data highlighting links between stress and anhedonia, and offer promising insights into potential mechanisms linking stress to depression.     

Hierarchical stimulus processing by dogs (Canis familiaris)

The purpose of this study was to assess the visual processing of global and local levels of hierarchical stimuli in domestic dogs. Fourteen dogs were trained to recognise a compound stimulus in a simultaneous conditioned discrimination procedure and were then tested for their local/global preference in a discrimination test. As a group, dogs showed a non-significant trend for global precedence, although large inter-individual variability was observed. Choices in the test were not affected by either dogs’ sex or the type of stimulus used for training. However, the less time a dog took to complete the discrimination training phase, the higher the probability that it chose the global level of test stimulus. Moreover, dogs that showed a clear preference for the global level in the test were significantly less likely to show positional responses during discrimination training. These differences in the speed of acquisition and response patterns may reflect individual differences in the cognitive requirements during discrimination training. The individual variability in global/local precedence suggests that experience in using visual information may be more important than predisposition in determining global/local processing in dogs.     

Influences of Work-Family Interface on Job and Life Satisfaction

Research investigating the relationship between family and work domains, according to a reductionist approach, has traditionally focused on the negative aspects of the work-family relationship. However, over the past 15 years a number of studies have also focused on the positive aspects of family and work relationships and on the interactions between the work-family interface and outcomes such as job and life satisfaction. These research studies have made it possible to capture different facets of the relationship between family and working life, and to clarify the specific nature of these interactions. In the present study, we tested a model that included positive and negative interactions between work and family as predictors of job and life satisfaction. We also examined the role of some of the potential moderators (work engagement, organizational and family support) of these relationships, using a sample of 427 Italian employees working in public administration. In our analysis, we first tested the factorial structure of the work-family interface measure (Kinnunen et al. Scandinavian Journal of Psychology, 47, 149–162 2006). Factor analysis confirmed a four-factor model: negative work-to-family interface, negative family-to-work interface, positive work-to-family interface, and positive family-to-work interface. Secondly, we analyzed the relationship between the work-family interface, job satisfaction and life satisfaction. Path analysis showed that the factors involved in the work-family interface influenced directly and indirectly life satisfaction, job satisfaction and work engagement. This analysis also showed that work engagement had a direct strong effect on job satisfaction and a direct weaker effect on life satisfaction. This pattern of findings is consistent with a causal sequence in which the work-family interface (WIF) and family-work interface (FIW) can increase or reduce a satisfaction-specific domain. Our results highlight the importance of using a theoretical and empirical model that integrates and focuses on both the positive and negative aspects of the work-family relationship. Moreover, this pattern demonstrates the potential consequences of this influence on employees’ working life and general well-being.     

The rise and fall of the Pacquiao Effect: Contrastive priming and national identification

We demonstrate in a series of field and controlled experiments that assimilative and contrastive priming effects can be observed in the pattern of self‐concept change in response to a major cultural event. Study 1 used the brief implicit association test (BIAT) to measure national identification of Filipinos online across a period of time that encompassed a national sporting event. The pattern of scores support the hypothesis that while people who were ambivalent about identifying with Filipino concepts exhibited an assimilation effect (i.e. a slight rise in identification after the fight), people who already highly identified with being Filipino experienced a contrast effect (i.e. a slight drop in identification). Study 2 replicated this result five months later with a new sample and ruled out several possible alternative hypotheses. A subsequent controlled experiment and a qualitative investigation consistently supported the hypothesis that the pattern observed in the previous studies is more consistent with assimilative and contrastive priming effects rather than disidentification.     

The Logics of Strict-Tolerant Logic

Adding a transparent truth predicate to a language completely governed by classical logic is not possible. The trouble, as is well-known, comes from paradoxes such as the Liar and Curry. Recently, Cobreros, Egré, Ripley and van Rooij have put forward an approach based on a non-transitive notion of consequence which is suitable to deal with semantic paradoxes while having a transparent truth predicate together with classical logic. Nevertheless, there are some interesting issues concerning the set of metainferences validated by this logic. In this paper, we show that this logic, once it is adequately understood, is weaker than classical logic. Moreover, the logic is in a way similar to the paraconsistent logic LP.