Psychological functions of urban busdrivers exposed to exhaust gases: A cross sectional study of urban busdrivers in Denmark

Busdrivers are assumed to be exposed to air pollutants in the exhaust gases from other vehicles via the defroster system of the buses. A cross sectional study using questionnaires and psychological tests was conducted on 171 urban busdrivers from the three largest cities in Denmark (Copenhagen, Aarhus, and Odense). A group of 47 commuter train drivers, assumed to be exposed to air pollutants no more than the average citizen, was studied as referents. The air of the busdrivers' breathing zone was analysed for its content of toxic agents. The hygienic effect in the winter season was found to be 0.63 and in the summer season 0.36. The year mean hygienic effect was found to be 0.42. Neurastenic complaints such as difficulties of concentration, verbal retrieval, and tiredness were significantly more frequent among the busdrivers, particularly in the Copenhagen group. On psychological tests of verbal and spatial learning, retrieval and memory, psychomotor functions, visual perception, and vigilance, the Copenhagen busdrivers compared to the reference group only showed significant dysfunctions of verbal learning and long-term memory. The bus-drivers from the two smaller cities did not differ significantly from the reference group. It is suggested that the subjective complaints are due to psychosocial stressors in the busdrivers' condition of work, whereas the few differences in psychological test results may indicate a subclinical effect caused by the presence of neurotoxic agents in the busdrivers' working environment.     

Attentional bias toward threat in contamination fear: overt components and behavioral correlates

Recent research suggests that an attentional bias toward threat may play a causal role in obsessive-compulsive disorder (OCD) with contamination concerns. However, the attentional components involved in this bias, as well as its behavioral correlates, remain unclear. In the present study, eye movements were recorded in individuals high and low in contamination fear (HCF, LCF, respectively) during 30-s exposures to stimulus arrays containing contamination threat, general threat, pleasant, and neutral images. HCF individuals oriented gaze toward contamination threat more often than LCF individuals in initial fixations, and this bias mediated group differences in responding to a behavioral challenge in a public restroom. No group differences were found in the maintenance of gaze on contamination threat, both in terms of initial gaze encounters, as well as gaze duration over time. However, the HCF group made shorter fixations on contamination threat relative to other image types. The implications of these findings for further delineating the nature and function of attentional biases in contamination-based OCD are discussed.     

公立医院与民营医院文化建设的异同分析

加强医院文化建设是现代医院发展的必然趋势,更是新医改下公立医院和民营医院寻求竞争优势行之有效的一种战略。但当前我国公立医院与民营医院由于所处体制与运行机制的不同,决定了二者在医院文化建设的路径和内容上存在一定的差异性,因而在医院文化的发展轨迹和实效性上也呈现出明显的不同。但可预见的是,未来随着国家机制和体制的完善以及医改的深入发展,我国公立医院与民营医院在医院文化的发展上将会殊途同归。     

当前我国公立医院过度扩张的原因及危害

当前我国公立医院的过度扩张已经引起了社会和医疗领域的高度关注,分析扩张背后的主要原因是市场经济制度下的利益驱动以及政府权力与医院权益交易等权利寻租的结果。这种过度扩张会引发一系列的负面效应:趋利性与垄断行为是目前公立医院过度扩张后带给社会的最大风险,使公立医院失去了本应承担的社会责任,同时打破了医疗市场的公平竞争,滋生了医疗领域的腐败,由于扩张所带来的医疗资源过于集中,既不利于患者权益的保障和医患关系的改善,也不利于当前我国“看病难、看病贵”问题的解决。因此,我国政府应该合理地控制公立医院的发展规模。     

The moderating effects of contamination sensitivity on state affect and information processing: Examination of disgust specificity

Although contamination sensitivity has been implicated in several disorders, there is a paucity of research examining the influence of this trait on various outcomes. Accordingly, the present study examined the extent to which individual differences in contamination sensitivity moderated state affect in response to a mood induction and subsequent information processing biases, as assessed by a lexical decision task (LDT). It was hypothesised that the moderating effects of contamination sensitivity would be specific to disgust responding to a negative but not positive mood induction, and to reaction times to disgust and fear compared to happy words on the LDT. The findings were largely consistent with this hypothesis, as contamination sensitivity predicted increased disgust and arousal to the negative mood induction. Contamination sensitivity was also a better predictor of reaction times to disgust and fear words than happy words. However, the moderating effect of contamination sensitivity on reaction times on the LDT was not mediated by its effects on response to the negative mood induction. Implications of these findings for conceptualising the role of contamination sensitivity and its association with disgust in specific disorders are discussed.     

Individual differences in disgust sensitivity and health-related avoidance: Examination of specific associations

This present study examined the specificity of disgust sensitivity in predicting health-related anxiety and behavioral avoidance. Participants (n = 60) completed self-report measures of disgust sensitivity, health anxiety, anxiety, and depression. They then completed three randomly presented health-related behavioral avoidance tasks (BATs) that consisted of potential exposure to the common cold, the flu, and mononucleosis. Results indicated that disgust sensitivity was significantly associated with anxious and avoidant responding to the health-related BATs. This association also remained largely intact after controlling for gender, anxiety, depression, and health anxiety. These findings indicate that disgust sensitivity has a specific and robust association with health-related anxiety and avoidance commonly observed among those with excessive health anxiety and obsessive compulsive disorder. The unique role of disgust sensitivity in relation to health anxiety is discussed in the context of a disease-avoidance model.     

Crying for a Vision: The Native American Sweat Lodge Ceremony as Therapeutic Intervention

The Native American sweat lodge ceremony or sweat therapy is being used increasingly in various medical, mental health, correctional, and substance abuse treatment centers serving both Native and non‐Native clients. This article explores the sweat lodge ceremony's background, elements of Native American spirituality, origin story, cultural symbolism, prayer, and contemporary use. Current evidence of effectiveness and therapeutic benefits is presented, then implications for integrating the sweat lodge ceremony as a complementary counseling approach are discussed.     

The effects of safety behaviors on health anxiety: an experimental investigation

The present study examined the extent to which safety behaviors exacerbate symptoms of hypochondriasis (severe health anxiety). Participants were randomized into a safety behavior (n = 30) or control condition (n = 30). After a baseline period, participants in the safety behavior condition spent one week actively engaging in a clinically representative array of health-related safety behaviors on a daily basis, followed by a second week-long baseline period. Participants in the control condition monitored their normal use of safety behaviors. Compared to control participants, those in the safety behavior condition reported significantly greater increases in health anxiety, hypochondriacal beliefs, contamination fear, and avoidant responses to health-related behavioral tasks after the safety behavior manipulation. In contrast, general anxiety symptoms did not significantly differ between the two groups as a function of the manipulation. Mediational analyses were consistent with the hypothesis that changes in the frequency of health-related thoughts mediated the effects of the experimental manipulation on health anxiety. These findings suggest that safety behaviors are associated with increases in health anxiety, perhaps by fostering catastrophic thoughts about health. The implications of these findings for the conceptualization of hypochondriasis as an anxiety disorder are discussed.