Sick-building syndrome fatigue as a possible predation defense

Sick-building syndrome is an illness characterized by fatigue, headache, and upper-respiratory complaints. It is usually associated with modern office buildings, structures with an impervious outer shell and inoperable windows. Poor air quality, specific pollutants, and inadequate ventilation are considered common causes. The ability to smell faint odors requires air that is free of contamination. Human evolutionary ancestors depended on odors for survival. Even the slightest increase in the ability to smell a predator conveyed a distinct, immediate survival advantage. Conversely, an enormous survival advantage would also accrue to the animal that sought protection or avoided activity when this vital olfactory information was unavailable. Such would be the case with fire on the savannah. The foraging, olfactory dependent animal, unable to smell predators because of contaminated air, would be quickly snatched by a keen-sighted carnivore. There exist, however, well-described reflexes from the nose mediated through the trigeminal nerve that discourage activity when these free nerve endings are irritated. This mechanism may serve as a defense against predation. In adulterated atmosphere the animal, subdued by these reflexes, would be less likely to venture forth and, therefore, less vulnerable to predators. Similar reflexes may persist in humans, activated by poor air quality, air ill-suited for the dissemination of odors. I suggest that the human perception of these inhibitory reflexes is the feeling of fatigue associated with the sick building syndrome.     

Social Motives Underlying Rational Selective Exploitation: The Impact of Instrumental Versus Social-Emotional Allocator Orientation on the Distribution of Rewards in Groups

Prior research has demonstrated that allocators frequently distribute lesser rewards to employees with constrained mobility, and that this tendency is more pronounced among more competent employees. This phenomenon is termed "rational selective exploitation." This allocation rule is rational in that it serves to maintain membership among the most desirable group members–those who contribute most to the group's task goals–but is exploitative in that it produces an erosion of equity: Although deserving of high rewards, the outcomes of competent but entrapped employees are lower than those of their counterparts with greater mobility. Four experiments tested several predictions concerning reward allocation processes. First, allocators distributed greater rewards to more competent employees. This tendency was more pronounced under conditions of instrumental allocator orientation than under conditions of social-emotional orientation. Second, allocators distributed greater rewards to more mobile employees. This tendency was more pronounced under conditions of instrumental orientation and constrained labor pool, and was weakly promoted by the anticipation of future allocations. Third, employee competence and employee mobility interacted; the tendency to allocate greater rewards to more mobile employees was especially pronounced among highly competent employees. This interaction of competence with mobility–the rational selective exploitation effect–was stronger under conditions of instrumental allocator orientation than under conditions of greater social-emotional concern, and was weakly promoted by the anticipation of future allocations.     

Do optimism and pessimism have different relationships with personality dimensions? A re-examination

The classic, well-cited study by Marshall et al. (1992) demonstrated that optimism correlates stronger with extraversion than does pessimism and pessimism correlates stronger with neuroticism than does optimism, and these results lent support to their claim that optimism and pessimism are two separate constructs. However, we argued that their results are likely the outcome of scale artefact caused by item valence (or item favorability). In an empirical study (N = 1016), we evaluated the correlation of optimism scores and pessimism scores with the most common measure of optimism - Life Orientation Test-Revised (LOT-R). As expected, when item valence effect was not controlled, we replicated the finding by Marshall et al. (1992) that optimism and pessimism show differential correlations with extraversion and neuroticism. After item valence was controlled such pattern of relationships was greatly reduced. Suggestions for future research to resolve the dimensionality debate for optimism-pessimism are discussed.     

Contemporary perspectives on the study of psychological climate: A commentary

At the individual level of analysis, we address how work environment perceptions (psychological climate) are conceptualized and measured with respect to three perspectives in the applied psychology literature: (1) social constructionist, (2) general psychological, and (3) multiple stakeholder. Similarities and differences between these perspectives regarding the hypothesized bases of work environment perceptions, factor models for capturing these perceptions, and the generality/specificity of psychological climate factors are discussed. A general framework for conceptualizing and measuring climate perceptions with respect to different referents, organizational levels, industries or sectors, and stakeholder groups is then presented. This framework is posited to include core, generalizable dimensions associated with each relevant stakeholder group. Finally, we recommend methods and discuss future research directions related to the aggregation of individual level climate perceptions to organizational levels.     

Effects of acute restraint stress on set-shifting and reversal learning in male rats

Exposure to acute stress alters cognition; however, few studies have examined the effects of acute stress on executive functions such as behavioral flexibility. The goal of the present experiments was to determine the effects of acute periods of stress on two distinct forms of behavioral flexibility: set-shifting and reversal learning. Male Sprague-Dawley rats were trained and tested in an operant-chamber-based task. Some of the rats were exposed to acute restraint stress (30 min) immediately before either the set-shifting test day or the reversal learning test day. Acute stress had no effect on set-shifting, but it significantly facilitated reversal learning, as assessed by both trials to criterion and total errors. In a second experiment, the roles of glucocorticoid (GR) and mineralocorticoid receptors (MR) in the acute-stress-induced facilitation of reversal learning were examined. Systemic administration of the GR-selective antagonist RU38486 (10 mg/kg) or the MR-selective antagonist spironolactone (50 mg/kg) 30 min prior to acute stress failed to block the facilitation on reversal learning. The present results demonstrate a dissociable effect of acute stress on set-shifting and reversal learning and suggest that the facilitation of reversal learning by acute stress may be mediated by factors other than corticosterone.     

The Impact of CACREP Accreditation: A Multiway Frequency Analysis of Ethics Violations and Sanctions

The impact of CACREP accreditation on counselor competency has received little empirical investigation. Differences in the frequency and type of ethical misconduct between graduates of CACREP‐accredited and non‐CACREP‐accredited counselor education programs were investigated. Results of a multiway frequency analysis indicated that fully licensed graduates of CACREP‐accredited programs were sanctioned for ethical misconduct significantly less frequently than were graduates of non‐CACREP‐accredited programs. Additionally, the accreditation factor was among the highest‐ranking parameter estimates of expected cell frequencies.     

Online mental health resources for adolescents: Overview of research and theory

Adolescents use the Internet at higher rates than any other age group. The Internet therefore offers an obvious opportunity for the provision of mental health information for them. Little is known, however, about adolescent behaviour online, especially access of age‐appropriate mental health resources. This review of the published literature examines theoretical and research studies to develop an understanding of adolescent mental health‐seeking behaviour on the Internet. It is clear that adolescents do seek health information online, but little is known about its content, nature or mode of delivery. There appears to be no research specific to mental health resources for adolescents online.     

Determining Activity of the Autonomic Nervous System from Measurements of Autonomic Change

Three hundred and fifty female high school students observed an outcome of a hypothetical interpersonal dyadic interaction. The outcome was either a suicide (serious outcome) or a half-hearted suicide attempt (less serious outcome). In one condition, one of the actors was presented as intentionally performing certain actions which he or she knew could cause the other actor to attempt or actually commit suicide. In the other condition, the perpetrator acted in an unintentional manner. Ss' identifications with either the victim or the perpetrator were also manipulated. Furthermore, Ss were independently classified as to whether they considered circumstances (C) or intentionality (I) as the important factor in attributing responsibility. C-attributers identifying with the victim assigned more responsibility to the perpetrator for the serious outcome. C-attributers identifying with the perpetrator assigned more responsibility to that perpetrator in the less serious condition. Predictions for I-attributers were also confirmed.