Do We Need Berlin Walls or Chinese Walls between Research, Public Consultation, and Advice? New Public Responsibilities for Life Scientists

During the coming decades, life scientists will become involved more than ever in the public and private lives of patients and consumers, as health and food sciences shift from a collective approach towards individualization, from a curative to a preventive approach, and from being driven by desires rather than by technology. This means that the traditional relationships between the activities of life scientists – conducting research, advising industry, governments, and patients/consumers, consulting the public, and prescribing products, be it patents, drugs or food products, information, or advice – are getting blurred. Traditional concepts of the individual, role, task, and collective responsibility have to be revised. This paper argues, from a pragmatic point of view, that the concept of public responsibility can contribute considerably in delineating new gray zones between the various roles of the life scientist: conducting research for governments or industry, giving advice, prescribing and selling products, and doing public consultation. The main issues are where new Chinese walls (not Berlin walls) need to be built between these activities, thereby increasing trust between life scientists and the public at large, and how to organize research agendas and to decide upon research topics. This revised version was published online in August 2006 with corrections to the Cover Date.     

Religious Unbelief in Three Western European Countries: Identifying and Characterizing Unbeliever Types Using Latent Class Analysis

The different forms of religious unbelief are still much of an open question. Using data (N = 4,404) from three European countries—Finland, Denmark, and the Netherlands—we sought to identify underlying unbeliever groups among those with the strongest disbelief in God (N = 2,258). Latent class analyses were conducted on the nontheistic supernatural beliefs of this subsection of participants, resulting in the same three unbeliever groups in each country: analytic atheists, spiritual but not religious (SBNR), and uncertain nonbelievers. Next, we explored these groups on a variety of dimensions, especially on the group members’ attitudes to religion, certainty of beliefs, cognitive dispositions, and worldview. One-way analyses of variance (ANOVAs) revealed similarities as well as distinct characters for each of the latent groups. The groups differed most in intuitive thinking style, overmentalizing bias, and other ontological confusions. To compare the latent groups to all other individuals who took part in the study, two discriminant analyses were run with all participants. This resulted in four meaningful dimensions that supported and extended the ANOVAs findings and allowed for the consideration of other (non)believers. Overall, this study supports earlier findings on analytic atheists and SBNR while providing new information about their dispositions. Of interest, the uncertain nonbeliever group has been largely unexplored previously, and it should gain more attention in future studies.     

Socially anxious adolescents' perception of treatment by classmates

This study addressed the question if socially anxious adolescents have a negatively biased perception of the way they are treated by their peers. A total of 998 high school students from Grades 8-10 were categorized as socially low, middle, or high anxious on the basis of their SAS-A score. The perceived behavior of classmates was measured using three lists that described class behaviors during oral presentations of students, one list was concerned with the behaviors directed towards the student him/herself and the other two with behaviors directed towards a hypothetical high and low socially anxious peer, respectively. The results indicated that high socially anxious students felt negatively treated by their peers and that the other students too perceived that socially anxious classmates were treated more negatively. This suggests that the perception of the high socially anxious students is not distorted but based on the actual treatment they receive from their classmates.     

Peer behavior toward socially anxious adolescents: classroom observations

This study focused on the relation between adolescents' social anxiety and the way they are treated by classmates. The link between class behavior during oral presentations and the social anxiety of the speakers was investigated. Social anxiety was measured both as a trait variable and as manifest in two state anxiety characteristics. A group of 55 students from Grades 8 and 9 were selected to participate in the study. Class behavior during their presentations was rated by the students themselves, their teacher, and an independent observer. Results showed that negative class behavior was related to social anxiety, particularly when behavior was rated by the independent observer. The data suggested that this negative social outcome is related to longer lasting social interactions in the classroom and not to specific state anxiety characteristics.     

Cognitive control of response inhibition and switching: Hemispheric lateralization and hand preference

Changing environmental constraints often make already prepared responses unnecessary or inappropriate. Under such circumstances, cognitive control enables to suppress the response or switch to alternative behavior. Here, we examine the neural dynamics of both functions in left- and right-handers who performed two variants of a paradigm that required either inhibition of the response or switching the response between hands. The EEG coherence data showed strengthening of interregional coupling in the alpha band (8–12 Hz) following the target cues with an essential contribution of fronto-medial circuitry and a specific involvement of parietal areas in response switching. Brain-behavioral correlations revealed the functional significance of left-sided regions for successful response inhibition and switching, underlining the significant role of the left hemisphere for the organization of goal-directed activities. This lateralization pattern was observed for both left- and right-handers and suggests dominance of higher-order aspects of action planning in the left hemisphere.     

Dissociative style and individual differences in verbal working memory span

Dissociative style is mostly studied as a risk factor for dissociative pathology, but it may also reflect a fundamental characteristic of healthy information processing. Due to the close link between attention and working memory and the previous finding of enhanced attentional abilities with a high dissociative style, a positive relationship was also expected between dissociative style and verbal working memory span. In a sample of 119 psychology students, it was found that the verbal span of the high-dissociative group was about half a word larger than of the medium and low-dissociative groups. It is suggested that dissociative style may be one of only very few individual differences that is directly relevant to consciousness research.     

Semantic interpretation as computation in nonmonotonic logic: the real meaning of the suppression task

Interpretation is the process whereby a hearer reasons to an interpretation of a speaker's discourse. The hearer normally adopts a credulous attitude to the discourse, at least for the purposes of interpreting it. That is to say the hearer tries to accommodate the truth of all the speaker's utterances in deriving an intended model. We present a nonmonotonic logical model of this process which defines unique minimal preferred models and efficiently simulates a kind of closed-world reasoning of particular interest for human cognition. Byrne's "suppression" data (Byrne, 1989) are used to illustrate how variants on this logic can capture and motivate subtly different interpretative stances which different subjects adopt, thus indicating where more fine-grained empirical data are required to understand what subjects are doing in this task. We then show that this logical competence model can be implemented in spreading activation network models. A one pass process interprets the textual input by constructing a network which then computes minimal preferred models for (3-valued) valuations of the set of propositions of the text. The neural implementation distinguishes easy forward reasoning from more complex backward reasoning in a way that may be useful in explaining directionality in human reasoning.     

A multiple case study approach to work stress prevention in Europe

Work stress has become a major issue among European employees. The current practice of its prevention seems disappointing, as work stress prevention programmes are predominantly reactive and biased to the individual. The lack of organization-level intervention studies is a barrier to progress in reducing work-related stress. In addition to the “true experimental approach”, multiple case studies may provide an adequate research strategy for addressing the potential impact of stress interventions in organizations. The study aim was to obtain more knowledge with respect to evidence-based work stress prevention in Europe, by focusing on both content (cause-effect relationships) and process (“how”). Therefore it was decided: (1) to collect from each European Union member state a work stress intervention study; (2) to analyse each of these cases as to content and process factors; and (3) to systematically compare these studies in a step-by-step approach. Through a network approach, 11 cases were identified. Nine projects received an acceptable methodological standard and were included in this study. Evaluation of these cases reveals that stress prevention is no “one time event”, nor merely a technical process. It is concluded that “true prevention” (i.e., preventive measures that are based on an adequate diagnosis identifying risk factors and risk groups, which theoretically and logically fit in with the problems, and which are introduced and implemented in a proper way) may be beneficial to both the employee and the organization.     

Vacation (after-) effects on employee health and well-being, and the role of vacation activities, experiences and sleep

Most vacations seem to have strong, but rather short-lived effects on health and well-being (H&W). However, the recovery-potential of relatively long vacations and the underlying processes have been disregarded. Therefore, our study focused on vacations longer than 14 days and on the psychological processes associated with such a long respite from work. In the present study, we investigated (1) how health and well-being (H&W) develop during and after a long summer vacation, (2) whether changes in H&W during and after vacation relate to vacation activities and experiences and (3) whether changes in H&W during and after vacation relate to sleep. Fifty-four employees reported their H&W before, three or four times during and five times after vacation. Vacations lasted 23 days on average. Information on vacation experiences, work-related activities and sleep was collected during vacation. Vacation activities were assessed immediately after vacation. H&W increased quickly during vacation, peaked on the eighth vacation day and had rapidly returned to baseline level within the first week of work resumption. Vacation duration and most vacation activities were only weakly associated with H&W changes during and after vacation. Engagement in passive activities, savoring, pleasure derived from activities, relaxation, control and sleep showed strong relations with improved H&W during and to a lesser degree after vacation. In conclusion, H&W improved during long summer vacations, but this positive effect was short-lived. Vacation experiences, especially pleasure, relaxation, savoring and control, seem to be especially important for the strength and persistence of vacation (after-) effects.     

How does a vacation from work affect employee health and well-being?

Health and well-being (H&W) improve during vacation. However, it is unclear whether this general development applies to all employees, while also little is known about the underlying processes causing such an improvement. Our research questions were: (1) Does every worker experience a positive effect of vacation on H&W? and (2) Can vacation activities and experiences explain changes in H&W during vacation? In a 7-week longitudinal field study, 96 workers reported their H&W 2 weeks before, during, 1 week, 2 and 4 weeks after a winter sports vacation on 6 indicators (health status, mood, fatigue, tension, energy level and satisfaction). Sixty percent of the sample experienced substantial improvement of H&W during and after vacation. Yet, a small group experienced no (23%) or a negative effect of vacation (17%). Spending limited time on passive activities, pleasure derived from vacation activities, and the absence of negative incidents during vacation explained 38% of the variance in the vacation effect. Although vacation has a positive, longer lasting effect for many, it is not invariably positive for all employees. Choosing especially pleasant vacation activities and avoiding negative incidents as well as passive activities during active vacations apparently contributes to the positive effect of vacation on H&W.