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211.
Two experiments were performed to test a psychophysical account of parallels between biases in risky choice and intertemporal choice. Experiment 1 demonstrated the common difference effect in intertemporal choice and the common ratio effect in risky choice. As was predicted, these two biases were uncorrelated with each other, although each was correlated across monetary/health domains. This result is consistent with the supposition that these two biases result from psychophysical properties of two different dimensions (time and probability, respectively). Experiment 2 examined the magnitude effect in intertemporal choice and the peanuts effect in risky choice. These two biases were correlated with each other but were uncorrelated across monetary/health domains. This result is consistent with the supposition that these two biases result from psychophysical properties of the same dimension (utility of money or health). 相似文献
212.
Psychobiology of altered states of consciousness 总被引:4,自引:0,他引:4
Vaitl D Birbaumer N Gruzelier J Jamieson GA Kotchoubey B Kübler A Lehmann D Miltner WH Ott U Pütz P Sammer G Strauch I Strehl U Wackermann J Weiss T 《Psychological bulletin》2005,131(1):98-127
The article reviews the current knowledge regarding altered states of consciousness (ASC) (a) occurring spontaneously, (b) evoked by physical and physiological stimulation, (c) induced by psychological means, and (d) caused by diseases. The emphasis is laid on psychological and neurobiological approaches. The phenomenological analysis of the multiple ASC resulted in 4 dimensions by which they can be characterized: activation, awareness span, self-awareness, and sensory dynamics. The neurophysiological approach revealed that the different states of consciousness are mainly brought about by a compromised brain structure, transient changes in brain dynamics (disconnectivity), and neurochemical and metabolic processes. Besides these severe alterations, environmental stimuli, mental practices, and techniques of self-control can also temporarily alter brain functioning and conscious experience. 相似文献
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Exploring Nonlinear Models in Personality Assessment: Development and Preliminary Validation of a Negative Emotionality Scale 总被引:2,自引:0,他引:2
Niels G. Waller Auke Tellegen Roderick P. McDonald David T. Lykken 《Journal of personality》1996,64(3):545-576
ABSTRACT In this article we discuss the applicability of several new measurement models to the construction of personality scales, and we contrast these models with more traditional approaches in common usage, such as the principal factor analysis model. Our goal is to illustrate how nonlinear item-response models can be profitably used in personality research. We describe the development of a 30-item Negative Emotionality scale that was constructed using nonlinear factor analysis and item-response theory. We also show how traditional (linear) factor analysis can produce misleading results when it is applied to personality items with dichotomous response formats (e.g., true/false, agree/disagree). No formal training in modern measurement theory is assumed of the reader as we describe the nonlinear models that are used in this study in nontechnical language with a minimum of mathematics. 相似文献
217.
Studying knowledge utilization and related processes calls for a conceptual framework. We look at the actors that engage in these processes in a specific field of human activity, and the interfaces and linkages between them, as a Knowledge and Information System (KIS). Although this KIS perspective originates from agriculture it also can be applied to other knowledge domains. Evidence gathered shows that for a KIS to be effective the actors (e.g., researchers, extensionalists, and clients) must act synergically. This inspired us to look for basic KIS principles that indicate opportunities for intervention. This article provides a brief state-of-the-art overview, presents some insights gained to date; and states the main issues for the use of information technology in knowledge management. 相似文献
218.
Four studies explored candidate pathways underlying the invention of the “wheeled cart.” In Study 1, heuristics were abstracted
from subjects’ judgements of different precursor paths to the wheeled cart. In Studies 2 and 3, these heuristics were tested
for generality across different precursor paths. In Study 4, subjects ranked the order of incorporating parts into the wheeled
cart. While the studies cannot “prove” that the wheeled cart developed in one of the candidate ways, they show that interesting
and important heuristics of invention can be uncovered from subject’s judgements. Examining candidate paths to important inventions
is a method worthy of exploration. Together, the four studies indicate that important historical inventions might be examined
experimentally. Doing so yields potentially important invention heuristics. 相似文献
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