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281.
Glöckner A Betsch T 《Journal of experimental psychology. Learning, memory, and cognition》2008,34(5):1055-1075
It has been repeatedly shown that in decisions under time constraints, individuals predominantly use noncompensatory strategies rather than complex compensatory ones. The authors argue that these findings might be due not to limitations of cognitive capacity but instead to limitations of information search imposed by the commonly used experimental tool Mouselab (J. W. Payne, J. R. Bettman, & E. J. Johnson, 1988). The authors tested this assumption in 3 experiments. In the 1st experiment, information was openly presented, whereas in the 2nd experiment, the standard Mouselab program was used under different time limits. The results indicate that individuals are able to compute weighted additive decision strategies extremely quickly if information search is not restricted by the experimental procedure. In a 3rd experiment, these results were replicated using more complex decision tasks, and the major alternative explanations that individuals use more complex heuristics or that they merely encode the constellation of cues were ruled out. In sum, the findings challenge the fundaments of bounded rationality and highlight the importance of automatic processes in decision making. 相似文献
282.
Niels Habermann Andreas Hill Peer Briken Wolfgang Berner 《Forensische Psychiatrie, Psychologie, Kriminologie》2008,2(4):241-248
Sexual homicides by juvenile offenders are statistically rare and until now only a few studies explored this phenomenon. Studies on forensic psychiatric court reports and follow-up data from federal criminal records were used to investigate the delinquency of a sample of 19 juvenile sexual homicide perpetrators from their childhood up to the mean age of 45 years of age. More than the half (58%) committed or attempted sexual assaults prior to the sexual homicide. Seven from 13 who were released from custody (54%) committed sexual or violent reoffences. In a long-time analysis as much favourable as unfavourable developments were found. The results suggest that most of the persons who commit sexual homicides as juveniles already committed sexual offences before and have a high risk of sexual and violent reoffending even a long time after the homicide. 相似文献
283.
Holger Andreas 《Axiomathes》2008,18(3):379-394
The concept of measurement is fundamental to a whole range of different disciplines, including not only the natural and engineering
sciences, but also laboratory medicine and certain branches of the social sciences. This being the case, the concept of measurement
has a particular relevance to the development of top-level ontologies in the area of knowledge engineering. For this reason,
the present paper is concerned with ontological aspects of measurement. We are searching for a list of concepts that are apt
to characterize measurement methods in a general manner. To establish such means of characterization, we will primarily deal
with the semantics of measurement values.
相似文献
Holger AndreasEmail: |
284.
Drawing on motivational approaches to emotion, the authors propose that the perceived change in spatial distance to pictures that arouse negative emotions exerts an influence on the significance of these pictures. Two experiments induced the illusion that affective pictures approach toward the observer, recede from the observer, or remain static. To determine the motivational significance of the pictures, emotional valence and arousal ratings as well as startle responses were assessed. Approaching unpleasant pictures were found to exert an influence on both the valence and the arousal elicited by the pictures. Furthermore, movement of pleasant or neutral pictures did not influence startle responses, while the second experiment showed that approaching unpleasant pictures elicited enhanced startle responses compared to receding unpleasant pictures. These findings support the view that a change of spatial distance influences motivational significance and thereby shapes emotional responses. 相似文献
285.
The authors examined the dynamics governing rhythmic forearm movements that 9 participants performed under a variety of task constraints by using a generic, unbiased analysis technique for extracting the drift coefficients of Fokker-Planck equations from stochastic data. From those coefficients, they reconstructed and analyzed vector fields and phase portraits to identify characteristic, task-dependent kinematic and dynamical features. They first directly estimated the parameters of weakly nonlinear self-sustaining oscillators from the extracted drift coefficients. The estimated parameters that the authors had selected instinctively and then particularized by using averaging methods largely confirmed previously derived limit-cycle models. Next, they ventured beyond limit-cycle models to examine global and local dynamical features that those models cannot adequately address, particularly task-dependent changes in flow strength and curvature and distinct dynamical features associated with flexion and extension. The authors argue that those features should be focal points of researchers' future modeling efforts to formulate a more adequate and encompassing account of the dynamics of rhythmic movement. 相似文献
286.
Andreas Mojzisch Stefan Schulz-Hardt Felix C. Brodbeck 《Journal of experimental social psychology》2008,44(6):1477-1490
Shared information has a stronger impact on group decisions than unshared information. A prominent explanation for this phenomenon is that shared information can be socially validated during group discussion and, hence, is perceived as more accurate and relevant than unshared information. In the present study we argue that this explanation only holds for preference-inconsistent information (i.e., information contradicting the group members’ initial preferences) but not for preference-consistent information. In Experiments 1 and 2 participants studied the protocol of a fictitious group discussion. In this protocol, we manipulated which types of information were socially validated. As predicted, social validation increased the decisional impact of preference-inconsistent but not preference-consistent information. In both experiments the effect of social validation was mediated by the perceived quality of information. Experiment 3 replicated the results of the first two experiments in an interactive setting in which two confederates discussed a decision case face-to-face with one participant. 相似文献
287.
Persistent and non-trivial effects of unconscious stimuli have been reported (Sohlberg & Birgegard, 2003). This raises the ethical question of whether informing participants about such stimuli effectively returns them to a normal state. Two experiments (sex-mixed, N = 70 and 118) tested two kinds of debriefing to participants following subliminal (tachistoscopic) attachment-related or control stimulation. Measures were the Beck Depression Inventory, Structural Analysis of Social Behavior, and Retrospective Attachment. Results showed persistent effects. Simple debriefing about the stimulus was effective in preventing these, while more elaborate debriefing also describing the effects and mechanisms for them was less effective. Persistent effects were also strongly related to participant sex, but debriefing effects were similar in men and women with regard to the purpose of debriefing. The findings have implications for ethical recommendations for subliminal research, and suggest that this unexplored area requires more attention. 相似文献
288.
Andreas Demetriou Leonidas Kyriakides Christina Avraamidou 《Journal of research in personality》2003,37(6):547
This study investigated the relationships between performance on tasks representing five cognitive domains (quantitative, categorical, spatial, causal, and propositional reasoning), self-attribution of ability in regard to them and also in regard to three general cognitive functions (processing speed, working memory, and self-monitoring and self-regulation), and the Big Five factors of personality (extraversion, agreeableness, conscientiousness, neuroticism, and openness to experience). The participants (n=629) were about equally drawn from each of the age years 12–17. Structural equation modeling analyses were conducted to examine the construct validity of scores on the three research instruments. Moreover, structural equations modeling showed that self-attribution of ability is, to some extent, dependent on cognitive performance. Cognitive performance is weakly related only to two of the Big Five (openness and conscientiousness). Self-attribution of ability is substantially related to all but the neuroticism factor. Apart from openness to experience, the dependence of personality dimensions on the dimensions of cognitive self-representation tends to weaken with age. It is concluded that the influence of cognitive abilities on personality is mediated by self-awareness about them and implications are discussed. 相似文献
289.
We survey a selection of results about majorization hierarchies. The main focus is on classical and recent results about the comparison between the slow and fast growing hierarchies. 相似文献
290.