Whole-body posture planning in anticipation of a manual prehension task: Prospective and retrospective effects

This study examined the extent to which the anticipation of a manual action task influences whole-body postural planning and orientation. Our participants walked up to a drawer, opened the drawer, then grasped and moved an object in the drawer to another location in the same drawer. The starting placement of the object within the drawer and the final placement of the object in the drawer were varied across trials in either a blocked design (i.e., in trials where the same start and end location were repeated consecutively) or in a mixed fashion. Of primary interest was the posture adopted at the moment of grasping the drawer handle before pulling it out prior to the object manipulation task. Of secondary interest was whether there were sequential effects such that postures adopted in preceding trials influenced postures in subsequent trials. The results indicated that the spatial properties of the forthcoming object manipulation influenced both the postures adopted by the participants and the degree to which the drawer was opened, suggesting a prospective effect. In addition, the adopted postures were more consistent in blocked trials than in mixed trials, suggesting an additional retrospective effect. Overall, our findings suggest that motor planning occurs at the level of the whole body, and reflects both prospective and retrospective influences.     

Does longer job tenure help or hinder job performance?

There are two competing theoretical perspectives on how job tenure might affect job performance. Human capital theory suggests that as knowledge and skill increase with greater tenure, job performance will improve as well. In contrast, the literature on job design suggests that as job tenure increases, employees are likely to become more bored and less motivated at work. Consequently, the gains from human capital acquisition might be offset by losses of motivation. To examine these competing perspectives, we conducted meta-analyses on the relationships of job tenure with four types of job performance: core task performance, citizenship behavior, creativity and innovative behavior, and counterproductive work behavior. The results support the second perspective, as both the linear and curvilinear relationships of job tenure with the four types of job performance are weak. Further, the results do not change in strength across type of research design, job industry, age, or gender.     

Realization and the metaphysics of mind1

According to a familiar view in philosophy of mind, mental states or properties are realized by physical states or properties but are not identical to them. This view is often called realization physicalism. But what is realization? I argue that recent approaches to realization, represented by Carl Gillett's ‘dimensioned’ view, fail to acknowledge some textbook cases of realization. I also argue Gillett's account in particular admits realization relations that should not count if realization physicalism is to be distinguished from its competitors in the usual ways. I offer my own account of realization, and argue that it is superior not only in passing the above tests but also in its utility for answering questions about multiple realizability.     

The principle of recombination and the principle of distinctness: A puzzle for Armstrong's theory of modality

Book Information Agency and Responsibility: A Common-Sense Moral Psychology. Agency and Responsibility: A Common-Sense Moral Psychology Jeanette Kennett New York Oxford University Press 2001 viii + 229 Hardback US$45 By Jeanette Kennett. Oxford University Press. New York. Pp. viii + 229. Hardback:US$45,     

Treating PTSD in refugees and asylum seekers within the general health care system. A randomized controlled multicenter study

Objective

There has been uncertainty about whether refugees and asylum seekers with PTSD can be treated effectively in standard psychiatric settings in industrialized countries. In this study, Narrative Exposure Therapy (NET) was compared to Treatment As Usual (TAU) in 11 general psychiatric health care units in Norway. The focus was on changes in symptom severity and in the diagnostic status for PTSD and depression.

Method

Refugees and asylum seekers fulfilling the DSM-IV criteria for PTSD (N = 81) were randomized with an a-priori probability of 2:1 to either NET (N = 51) or TAU (N = 30). The patients were assessed with Clinician Administered PTSD Scale, Hamilton rating scale for depression and the MINI Neuropsychiatric Interview before treatment, and again at one and six months after the completion.

Results

Both NET and TAU gave clinically relevant symptom reduction both in PTSD and in depression. NET gave significantly more symptom reduction compared to TAU as well as significantly more reduction in participants with PTSD diagnoses. No difference in treatment efficacy was found between refugees and asylum seekers.

Conclusions

The study indicated that refugees and asylum seekers can be treated successfully for PTSD and depression in the general psychiatric health care system; NET appeared to be a promising treatment for both groups.

ClinicalTrials.gov registry number

NCT00218959.     

Engagement organisationnel,coping, et affects en contexte organisationnel : test d’un modèle intégrateur

This study examines a model relating components of organizational commitment to positive and negative affect through the partial mediation of problem solving coping. The results of a study conducted among a sample of 647 employees from various organizations show that affective commitment relates positively to positive affect and negatively to negative affect, with the relation to positive affect being partially mediated by problem solving coping. Normative commitment was positively related to negative affect. Finally, continuance commitment based on few alternatives was negatively related to positive affect and positively related to negative affect, with the relation to positive affect being partially mediated by a weaker problem solving coping. Continuance commitment based on perceived sacrifice had no effects.     

The impact of frequent social Internet consumption: Increased procrastination and lower life satisfaction

Organizations are frequently turning to social Internet applications in an effort to form bonds with consumers. However, little research has addressed the impact of social Internet consumption on the individual. Two studies of regular social Internet consumers (i.e., users of Facebook and socially connected online games) examined the effects of prompted usage reduction or cessation upon participants. In both studies, participants benefitted on average during the reduction/cessation period, reporting increased life satisfaction and decreased procrastination. The Facebooker versus gamer factor had remarkably few effects (i.e., results generalized across these two groups). Implications are discussed for both consumers and organizations involved in social Internet activities. Copyright © 2013 John Wiley & Sons, Ltd.     

The evolution of the primates: Anglicanism,primacy and conciliarity

Contemporary debate about the relationship between civil and religious law, highlighted by the Archbishop of Canterbury's 2008 lecture on ‘Civil and Religious Law in England’, prompts a reassessment of the place of ius divinum in the understanding of the nature of law. This article questions the assumption of modernity that there is no place for divine law, and briefly surveys the different role played by divine law in Judaism, Islam and Christianity. It examines the contrasting Christian perspectives of Aquinas and Duns Scotus, which leads to a critique of the relationship between personal welfare and the common good. Since, in the context of post-modernism, questions related to divine law are once again being addressed, the article criticises aspects of a fundamentalist approach to it in both Islam and Christianity. It argues that, from a Christian perspective, the personal truth of Jesus Christ embodies the place where the divine freedom comes into relation with human freedom. It concludes that in reflecting on a common praxis for humanity, it is this embodied relationship which provides the basic perspective for practitioners of canon law to contribute in a significant way to the debate now gathering momentum.