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851.
Abstract

Stress has been a ubiquitous concept in health research. We compare stress theories with the operationalization of stress in health research. Although scientific investigation is ideally based on theoretical principles, stress research is seen as often atheoretical or misapplying theories. Major conceptualizations of stress are considered and prominent research avenues in health psychology are analyzed as to the extent they mirror, diverge from, or inform stress conceptualizations. A central conclusion of the paper is that perceived and objective stressors are not only both valid construels of stress, but that they operate differently on psychological and physiological systems.  相似文献   
852.

This paper reports an empirical study of the self-reported psychological strain, ill-health, job satisfaction and organizational commitment of 2450 public sector employees located in Western Australia. The framework used to predict these variables is a demands, supports-constraints framework. The key theoretical issue explored is the differential roles of negative affectivity in predicting the outcomes from this framework. Four different pathways are explored which are taken from Moyle ( Journal of Organizational Behaviour , 16 (1995), 647-668). Multiple regression methods are used to control for negative affectivity and other effects such as curvilinear relationships. The results show that negative affectivity has a variety of effects on both health and job attitude variables but the effects are much larger for the health variables. The conclusion recommends that, in studies that rely on all self-report data, the various possible effects of personality variables such as negative affectivity should be explored in preference to ignoring them.  相似文献   
853.
Abstract

This chapter serves as an introduction to the many roles of health care professionalsin the assessment, care, and treatment of child victimization. It concentrates on those professionals caring for the physical health of victims of child abuse and neglect, although there are many similarities between child maltreatment and other family violence victims. In reviewing the health impact of maltreatment and the historical contributions of health care professionals, it discusses the roles that health care disciplines play in clinical care, training, research, and advocacy and their interaction with the community's child welfare, legal, and criminal justice systems.  相似文献   
854.
In two experiments, we test predictions regarding processing advantages/disadvantages for natural objects and artefacts in visual object recognition. Varying three important parameters—degree of perceptual differentiation, stimulus format, and stimulus exposure duration—we show how different category-effects can be provoked in normal subjects on the same task. We interpret the results in light of the Pre-semantic Account of Category Effects (PACE; Gerlach, 2009), and conclude that category-effects do not reflect absolute processing differences between categories. Rather, category-effects are products of common operations which are differentially affected by the structural similarity among objects (with natural objects being more structurally similar than artefacts). The potentially most important aspect of the present study is the demonstration that category-effects are very context dependent; an aspect which has been neglected in earlier literature on category-specificity. PACE provides a useful framework in this respect, as it specifies how category-effects are influenced by changes in task and stimulus characteristics.  相似文献   
855.
ABSTRACT

Interacting with other people is a ubiquitous part of daily life. A complex set of processes enable our successful interactions with others. The present research was conducted to investigate how the processing of visual stimuli may be affected by the presence and the hand posture of a co-actor. Experiments conducted with participants acting alone have revealed that the distance from the stimulus to the hand of a participant can alter visual processing. In the main experiment of the present paper, we asked whether this posture-related source of visual bias persists when participants share the task with another person. The effect of personal and co-actor hand-proximity on visual processing was assessed through object-specific benefits to visual recognition in a task performed by two co-actors. Pairs of participants completed a joint visual recognition task and, across different blocks of trials, the position of their own hands and of their partner's hands varied relative to the stimuli. In contrast to control studies conducted with participants acting alone, an object-specific recognition benefit was found across all hand location conditions. These data suggest that visual processing is, in some cases, sensitive to the posture of a co-actor.  相似文献   
856.
To study how expertise impacts the understanding of a complex system like the vineyard, three measures were used with 259 participants (190 non-experts, 34 winemakers and/or winegrowers, and 35 biologists): a questionnaire to check for expertise (the Plant Biology Questionnaire), a task about the Structure, Behaviour and Function model, and a measure of the content of the participants’ discourse with the ALCESTE software. Results showed that biologists mentioned functions significantly more often than behaviours, whereas it was the opposite for winegrowers. Non-experts mentioned functions and behaviours significantly less frequently than experts did. The content analysis confirmed the differential expression of each kind of expertise: scientific wording for biologists, technical wording for winegrowers, and words focused on perceptible structures for the non-experts. Results from all tasks were highly correlated and allowed for an interpretation of expertise in terms of mental models of the vineyard.  相似文献   
857.
The role of need for cognitive closure (NFCC) in reasoning about social relations was investigated. Participants learned pairwise liking/disliking relations between people who could also be categorised on the basis of nationality and then had to group them into social cliques. The social clique structures were either consistent or inconsistent with the nationality categorisation, and the diagnostic information that was necessary to determine the number of cliques appeared either early or late in the information sequence. We expected participants under conditions of high (vs low) NFCC to rely more on heuristic processing. As predicted, high (vs low) NFCC participants were less accurate in their representations of cliques when the clique structure was inconsistent with the nationality category (Study 1 and 2) and when the diagnostic information was presented late (Study 1). The implications regarding the influence of NFCC on reasoning and the role of specific NFCC manipulations are discussed.  相似文献   
858.
Two types of truth table tasks are used investigating mental representations of conditionals: a possibilities-based and a truth-based one. In possibilities tasks, participants indicate whether a situation is possible or impossible according to the conditional rule. In truth tasks participants evaluate whether a situation makes the rule true or false, or is irrelevant with respect to the truth of the rule. Comparing the two-option version of the possibilities task with the truth task in Experiment 1, the possibilities task yields logical answer patterns whereas the truth task yields defective patterns. Adding the irrelevant option to the possibilities task in Experiment 2 leads to a considerable amount of defective patterns in the possibilities task, but still to more logical patterns in the possibilities task than in the truth task. Experiment 3 shows that directionality matters since rule-to-situation tasks yield more logical answer patterns than do situation-to-rule tasks. We conclude that both task types are not comparable as such since wording, number of options and directionality influence the results.  相似文献   
859.
The current study examined whether dispositional gratitude predicts physical health among adults, and if so, whether this relationship occurs because grateful individuals lead healthier lives, either psychologically or physically. Specifically, we examined whether psychological health, healthy activities, and willingness to seek help for health concerns mediated the link between gratitude and self-reported physical health, as well as if these mediational pathways are moderated by age, in a broad sample of Swiss adults (N = 962, Mage = 52 years, age range: 19–84). Dispositional gratitude correlated positively with self-reported physical health, and this link was mediated by psychological health, healthy activities, and willingness to seek help for health concerns. However, the indirect effects for psychological health and healthy activities were stronger for older than younger adults. In other words, the mechanisms explaining why gratitude predicts health appear to differ across adulthood.  相似文献   
860.
This study examined whether individuals with a high need to belong and feelings of loneliness tend to compensate for a lack of social contact by self-talk and whether self-talk prevents negative consequences on their physical and mental health. The sample consisted of 559 adults drawn from the German Sozioland Panel Project. The results of SEM analyses revealed evidence for significant relations of the need to belong and loneliness with the frequency of self-talk. Moreover, the need to belong and loneliness were significantly related to mental and physical health, but loneliness was shown to be more important for the prediction of both health outcomes. Results of moderator analyses indicate that self-talk might be a risk factor for an increased negative correlation between loneliness and mental health. Self-talk, which is supposed to be related to self-awareness, might reinforce the subjective feeling of loneliness and hence have a negative impact on psychological well-being.  相似文献   
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