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111.
In timing perception studies, the timing of one event is usually manipulated relative to another, and participants are asked to judge if the two events were synchronous, or to judge which of the two events occurred first. Responses are analyzed to determine a measure of central tendency, which is taken as an estimate of the timing at which the two events are perceptually synchronous. When these estimates do not coincide with physical synchrony, it is often assumed that the sensory signals are asynchronous, as though the transfer of information concerning one input has been accelerated or decelerated relative to the other. Here we show that, while this is a viable interpretation, it is equally plausible that such effects are driven by shifts in the criteria used to differentiate simultaneous from asynchronous inputs. Our analyses expose important ambiguities concerning the interpretation of simultaneity judgement data, which have hitherto been underappreciated. 相似文献
112.
Nina Smyth Frank Hucklebridge Lisa Thorn Phil Evans Angela Clow 《Social and Personality Psychology Compass》2013,7(9):605-625
Cortisol, a neuroendocrine hormone measurable in saliva, responds to internal and external triggers. In providing a peripheral ‘window on the brain’, it has been increasingly incorporated into social psychological studies. Cortisol secretion can be studied in two main ways, examination of acute stress reactivity and examination of the basal circadian patterns. These can inform aspects of acute and chronic stress exposure and relationships with health. Within non‐clinical populations, cortisol effects are largely driven by differences in the perception of threat. For social psychologists, this provides an interesting avenue for the investigation of social factors that mediate perceptions of threat, such as social support, relationship processes, and group dynamics in acute and chronic stress. This paper provides a background to understanding the regulation and function of cortisol, and issues arising in relation to its measurement in saliva. It discusses and makes recommendations on the use of appropriate cortisol measures in the study of both acute and chronic stress. Used and interpreted appropriately, stress reactivity and basal ambulatory measures of salivary cortisol can provide a valuable adjunct to self‐report and observation in social psychological research. © 2013 John Wiley & Sons Ltd 相似文献
113.
This study investigated whether feedback from pedometers motivated adults to increase their walking behavior. Participants (n =26) were enrolled in one of two 8-wk. "Walking for Fitness" classes. The study used a crossover design, such that Group 1 wore pedometers for the first 3 weeks (Feedback Condition) and sealed "disguised" pedometers for the last 3 weeks (No-feedback Condition). The order of feedback was reversed for Group 2. Analysis indicated that (a) neither group increased their walking behavior significantly over time and, (b) interactions between groups were not significant at Week 3 or 6, indicating that groups did not respond differently to feedback from the pedometers. If a motivational effect from pedometers exists, it may be small, dissipate before 3 wk., only work in combination with goal setting, or only motivate certain types of individuals. 相似文献
114.
The aim of the study was to characterize symptoms of visual neglect among patients who recently survived a stroke in the right hemisphere (RH), and to contribute to the understanding of change in symptoms during the first months after a RH stroke. Thirteen patients with a RH stroke and twenty controls were assessed by using standard neglect tests. Five patients were followed up by repetitive test sessions during the next four months. To assess more subtle symptoms, reaction-time (RT) measures derived from an experimental cue-target paradigm were included in the final test session. A high frequency of neglect symptoms was documented at the first test session. The changes in performance during the first weeks were characterized by a high inter-individual as well as a high intra-individual variability. Although the remission rate on standard tests was high in the follow-up study, the RT measures indicated sustained symptoms of visual extinction in all patients. The long-term implication of the changes of neglect symptoms during the first weeks after a stroke and signs of sustained symptoms of visual extinction calls for further longitudinal studies including a larger group of patients. 相似文献
115.
The nature of scientific societies’ relationships with their members limits their ability to promote research integrity. They
must therefore leverage their strengths as professional organizations to integrate ethical considerations into their ongoing
support of their academic disciplines. This paper suggests five strategies for doing so. 相似文献
116.
This work examined the effect of procedural justice and item frame on responses to positively and negatively worded survey items. Under conditions of low procedural justice, there is a significant difference in the rating of distributive justice items positively and negatively framed, but not when procedural justice is high. Implications for decision frame theory and biasing of responses to survey items are considered. 相似文献
117.
Many of the topics of interest in the social and behavior sciences are often hierarchical or multilevel in nature. These multiple
levels (e.g., individual versus group) create problems for researchers related to the choice of measurement and analysis.
Recent innovations in statistical analysis have made it possible to account for the hierarchical nature of observations. Therefore,
in this article we begin with a review of multilevel analysis techniques and discuss advances that have been made in the social
sciences using multilevel models. Next, we summarize contemporary research specific to the organizational psychology literature
that uses multilevel analysis. Possible applications for industrial and personnel psychology are then discussed. Guidelines
for determining if multilevel analysis is appropriate for a given applied research project are provided. We conclude with
a summary and call for increased use of multilevel analysis in industrial and personnel psychology. 相似文献
118.
It is argued that conservation judgements are based on a particular combination of logical necessity and empirical belief. The empirical belief is that a given transformation will not alter a particular quantity (Elkind's conservation of identity). The logical aspect is a transitive deductive argument containing an initial equivalence of two quantities and the conservation of identity belief as premises which lead to the conclusion of maintained equivalence (Elkind's conservation of equivalence). In two experiments, it is shown that conservation of identity beliefs can be manipulated in subjects who have long since developed the capacity for transitive deductive inference. Untrained 10 year olds were unaware of how sublimation acts to alter certain quantities over particular transformations of shape. And untrained adults incorrectly believed that both the area and perimeter of a closed figure would be conserved over transformations which elongated the figure. Both groups of subjects could be trained in the correct conservation of identity beliefs and this affected their conservation of equivalence judgements in predicted ways. It is suggested that the locical aspect of conservation is developmentally stable and that the empirical aspect varies widely across problems and individuals because of its dependence on relevant experience. 相似文献
119.