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751.
Dayan P 《Trends in cognitive sciences》2002,6(3):105-106
Current evidence suggests that neural Hebbian learning in cortical and hippocampal synapses is fundamentally predictive rather than conventionally correlational. Much attention is focussing on what sort of predictions are acquired, and in what neural architectures. A recent paper by Rao and Sejnowski has suggested an interesting interpretation in terms of a popular predictive algorithm that has roots in psychology, computer science and engineering. 相似文献
752.
753.
Research from the Netherlands has pointed out that the increased popularity of New Age since the 1960s by no means compensates for the dramatic decline of the Christian churches. From a theoretical point of view, however, it is more important to study why those remarkably divergent developments have occurred in the first place. This article does this by analyzing survey data collected among the Dutch population at large in 1998, focusing on a comparison of the young and the elderly. It is concluded, first, that there are no indications that the decline of the Christian tradition has been caused by a process of rationalization. Second, the decline of the Christian tradition and the growth of nonreligiosity as well as New Age are caused by increased levels of moral individualism (individualization). Implications for the sociological analysis of cultural and religious change are discussed. 相似文献
754.
Klaus FiedlerEva Walther Peter FreytagEvelyn Stryczek 《Journal of experimental social psychology》2002,38(1):14-30
A conceptual framework is presented for studying trivariate inference, in which the influence of a primary independent factor, x, on a dependent variable, y, depends on a secondary factor, z. In two experiments, this was operationalized as the contingency between mating strategies, x, and mating success, y, for targets stemming from different tribes, z. In Experiment 1, z was manipulated to produce four contingency types: control, orthogonal, suppressor, and spurious correlations. Performance variation was not restricted by encoding capacity; explicit and implicit measures were more accurate at the trivariate level than at the bivariate level of assessment. Aside from normal regression effects, neither task complexity nor competition among influence factors led to impaired performance. Impairment was evident mainly in a radical discounting effect for spurious correlations due to representational conflicts. Experiment 2 demonstrates that the difficulties with spurious correlations can be overcome when temporal cues disambiguate the joint influence of x and z on y. 相似文献
755.
Some theories of associative learning imply that time plays a fundamental role in the acquisition process. Consistent with these theories, this paper presents evidence that the time from the onset of a conditioned stimulus (CS) until presentation of the unconditioned stimulus (US) is learned very rapidly at the start of training. We report two autoshaping studies and a study on aversive conditioning in goldfish in which we examine timing at the start of conditioning. We also review data from a number of other conditioning preparations, including fear-potentiated startle, appetitive conditioning in rats, and eyeblink conditioning in rabbits, that report conditioned response (CR) timing early in training. Acquisition speed and the very first expressions of conditioned responding often show sensitivity to the time of US presentation. In instances where temporal control is slowly expressed, it is likely due to performance factors, not to slow learning about time. In fact, the learning about time may be a necessary condition for associative learning. 相似文献
756.
A sample of 311 primary school teachers completed the Spiritual Health in Four Domains Index alongside the abbreviated revised Eysenck Personality Questionnaire and measures of religiosity. The data demonstrate that higher levels of spiritual health are found among older teachers who record low scores on the psychoticism scale and who practice religious faith through church attendance and personal prayer. 相似文献
757.
Peter B. M. Vranas 《Erkenntnis》2002,57(2):151-174
The Principal Principle (PP) says that,for any proposition A, given any admissible evidenceand the proposition that the chance of A is x%,one's conditional credence in A should be x%. HumeanSupervenience (HS) claims that, among possible worldslike ours, no two differ without differing inthe spacetime-point-by-spacetime-point arrangement oflocal properties. David Lewis (1986b, 1994a)has argued that PP contradicts HS, and thevalidity of his argument has been endorsed byBigelow et al. (1993),Thau (1994),Hall (1994),Strevens (1995),Ismael (1996),Hoefer (1997), and Black (1998).Against this consensus, I argue thatPP might not contradict HS: Lewis'sargument is invalid, and every attempt – withina broad class of attempts – toamend the argument fails. 相似文献
758.
Causal judgement from contingency information: Judging interactions between two causal candidates 总被引:3,自引:0,他引:3
Peter A. White 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》2002,55(3):819-838
In two experiments participants judged the extent to which occurrences and non-occurrences of an effect could be attributed to an interaction between two causal candidates A and B. In Experiment 1 judgements were influenced by the proportion of instances normatively evaluated as confirmatory for the interaction interpretation, when the objective contingency was held constant. Information about instances in which both candidates were present and the effect occurred was more influential than information about instances in which both candidates were absent and the effect did not occur. In Experiment 2 the occurrence rate of the effect when both candidates were present, when A alone was present, when B alone was present, and when both were absent was manipulated. Interaction judgements were mainly determined by occurrence rate when both were present. There was also a significant effect of occurrence rate when both were absent, but the other two occurrence rates had no significant effect. These results are interpreted as supporting a general model in which causal judgements are made according to the proportion of instances evaluated as supporting the interpretation being judged. 相似文献
759.
Peter C. Kjaergaard 《Journal for General Philosophy of Science》2002,33(1):121-149
The German physicist Heinrich Hertz played a decisive role for Wittgenstein's use of a unique philosophical method. Wittgenstein applied this method successfully to critical problems in logic and mathematics throughout his life. Logical paradoxes and foundational problems including those of mathematics were seen as pseudo-problems requiring clarity instead of solution. In effect, Wittgenstein's controversial response to David Hilbert and Kurt Gödel was deeply influenced by Hertz and can only be fully understood when seen in this context. To comprehend the arguments against the metamathematical programme, and to appreciate how profoundly the philosophical method employed actually shaped the content of Wittgenstein's philosophy, it is necessary to make an intellectual biographical reconstruction of their philosophical framework, tracing the Hertzian elements in the early as well as in the later writings. In order to write Wittgenstein's biography, we have to take seriously the coherence of his thought throughout his life, and not let convenient philosophical ideologies be our guidance in drawing up a “Wittgensteinian philosophy”. To do so, we have to take a second look upon what he actually wrote, not only in the already published material, but in the entire Nachlass. Clearly, this is not easily done, but it is a necessary task in the historical reconstruction of Wittgenstein's life and work. 相似文献
760.
Peter G. Riddell 《Islam & Christian-Muslim Relations》2002,13(1):65-84
Since the resignation of Suharto as president of Indonesia in May 1998, the country has suffered from chronic instability on various fronts. Economic disruption resulting from the Asian economic crisis of 1997 continues. Food shortages have been widespread throughout the archipelago. Social instability has been rife, especially in densely populated areas where communities have had to compete for scarce resources. Inter-religious conflict has exploded, especially between Muslim and Christian communities, reflecting a common outcome of economic and social instability. This paper will focus upon Indonesia in the period May 1998-July 2001 and will draw upon wide-ranging print and electronic media reports as well as secondary scholarship. Particular attention will be devoted to the political stage and to the changing role of Islam in that context. We will consider the different voices being heard among the Muslim community, the key issues of debate that have preoccupied Muslim political leaders and the ingredients which have contributed to a surge in Muslim-Christian conflict in Indonesia during the period being examined. 相似文献