The information content of panoramic images II: view-based navigation in nonrectangular experimental arenas

Two recent studies testing navigation of rats in swimming pools have posed problems for any account of the use of purely geometric properties of space in navigation (M. Graham, M. A. Good, A. McGregor, & J. M. Pearce, 2006; J. M. Pearce, M. A. Good, P. M. Jones, & A. McGregor, 2004). The authors simulated 1 experiment from each study in a virtual reality environment to test whether experimental results could be explained by view-based navigation. The authors recorded a reference image at the target location and then determined global panoramic image differences between this image and images taken at regularly spaced locations throughout the arena. A formal model, in which an agent attempts to minimize image differences between the reference image and current views, generated trajectories that could be compared with the search performance of rats. For both experiments, this model mimics many aspects of rat behavior. View-based navigation provides a sufficient and parsimonious explanation for a range of navigational behaviors of rats under these experimental conditions.     

An integrating approach to the study of burnout in university professors

The aim of this paper is to use an integrative approach to identify the main correlates and/or predictors at different levels (personal, psychosocial, occupational and outside the workplace) of the burnout dimensions. The sample consists of 813 university professors. Results from statistical analyses show that there are, indeed, both common and specific predictors for the different facets of the syndrome. Specifically, while social support and optimism are selected to confirm all manifestations of burnout, other factors (work hours per week, time in the profession, hardiness, Type A behavioural pattern, life events, daily hassles) do increase the emergence of differential profiles. Lastly, findings are discussed and the main conclusions are presented.     

The effect of workplace byllying on insomnia: the role of psychological detachment and rumination

A recent number of studies have focused on the relations between psychosocial factors and sleep disturbances. Like other work-related stressors, workplace byllying is associated with several negative consequences. However, few studies have investigated the influence of workplace byllying on disturbed sleep. Insomnia is the most frequent sleep complaint. Several models have highlighted the importance of cognitive factors in the development and maintenance of insomnia. Cognitive styles such as psychological detachment and rumination may be relevant in this process. The aim of the present study is to examine the moderating role of psychological detachment and rumination on the relationship between workplace byllying and insomnia. To minimize the effect of common method variance, we tested our hypothesis using a research design in which we collected data at two points in time separated by 1 month. A total of 523 individuals responded to both phases, with 511 useable surveys. The results of the hierarchical multiple regression analysis provide evidence for the moderating role of psychological detachment and rumination in the workplace byllying process. Thus, these findings are in line with the cognitive models of insomnia.     

Learning approaches, self-regulation and achievement in three European universities

The current study seeks to analyze the relationship between learning approaches, self-regulation and performance. Data are gathered from three public European universities, one from the UK (University of Wales Institute, Cardiff) and two from Spain (Universities of Almeria and Granada). Two self-report measurements were used to collect information, the R-SPQ-2F questionnaire and the IATLP Scales. Results indicate that learning approaches are related to self-regulation and to academic performance. Different relationships with learning approaches are obtained depending on the type of performance analyzed (conceptual, procedural, attitudinal), which may account for divergent conclusions in other research studies. New lines of research are proposed based on the conclusions.     

The users of an online psychological advice service: a sociodemographic analysis

Although online psychological services and research based on them are increasing rapidly, it is not that easy to find investigations that focus on the kind of people that demand them. To know their profile could help to improve the online psychological services that are offered to them. For this purpose, we analysed the sociodemographic characteristics of 1052 participants, all of them having posed a psychological question to our online advice service. The relations between sociodemographics and variables related to the psychological consultation are analysed herein. Features such as age distribution, a high proportion of long-term problems, the large quantity of questions from Latin America, or the under representation of the lowest socioeconomic and educational levels could lead to clinical, social and legal implications that we comment on in this work.     

Resistance and vulnerability to trauma: the moderator effect of personality variables on secondary traumatic stress

The purpose of this study was to examine the role of several personality variables (empathy, comprehensibility, challenge and sense of humour) as moderators of the relationship of job demands (traumatic task and overload) with secondary traumatic stress. 175 emergency professionals of the Community of Madrid completed the Secondary Traumatic Stress Measure (STSM). The results of the hierarchical multiple regression analysis provide evidence for the moderator role of personality variables in the secondary traumatic stress process. Lastly, the discussion emphasises the need to focus on the interaction between personality and job demand variables in order to advance our understanding of the process of trauma in emergency professionals.     

Crime prevention: more evidence-based analysis

This paper introduces a new section of Psicothema dedicated to the evidence-based approach to crime prevention. Along with an original sexual-offender-treatment programme implemented in Spain, this section presents four systematic reviews of important subjects in the criminological arena, such as sexual offender treatment, the well-known programme, the effectiveness of custodial versus non-custodial sanctions in reoffending and the fight against terrorism. We also highlight some of the focal points that scientists, practitioners and governments should take into account in order to support this evidence-based viewpoint of crime prevention.     

Child sexual abuse coping and long term psychological adjustment

The aim of the study was to analyze the consequences of Child Sexual Abuse (CSA) on the psychological adjustment of university students, as well as the way in which several avoidance and approach coping strategies affect that adjustment. The sample comprised 1162 students from the University of Granada. Data about CSA was obtained from a questionnaire developed with this aim. We used the How I Deal with Things Scale of Burt and Katz to evaluate coping strategies, whereas depression and self-esteem were assessed with the Beck Depression Inventory and the Rosenberg Self-Esteem Scale, respectively. Subjects who were victims of CSA showed significantly higher scores on depression and lower scores on self-esteem. An analysis of coping strategies revealed that only the use of avoidance strategies was related to psychological adjustment. Subjects who used these strategies obtained higher scores on depression and lower scores on self-esteem. These results confirm the idea of CSA as a risk experience that can affect victims' psychological adjustment, to a greater or lesser extent, according to the coping strategy employed.     

Absence of effect of the change of food context in the activity-based anorexia phenomenon in rats

The goal of this study was to analyse how the context in which animals remain during the period of access to food modulates the development of activity-based anorexia in rats. For this purpose, the effect of changing the context of the activity period and the eating period was measured in terms of body weight loss, reduction in food intake and increase in physical activity. A 2 yen 2 factorial design was implemented, by having or not having access to a running wheel, and by being exposed or not exposed to a context change. Results showed that exposure to different contexts for the wheel and for the food did not affect weight loss, food intake or activity levels. These results are in line with the theoretical position of Epling and Pierce (1992) that activity is induced by the food restriction regime.