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31.
Pratt, Adam, and Fischer (2007) investigated the effect of surrounding targets on the time it took to move to an individual target and found that the movement
time to a central target was above the Fitts’s law line related to the first and last targets. They explained their results
in terms of a “visuomotor hypothesis.” Here, an alternative explanation is given in terms of a previously validated model
of the “available target width” that is determined by the size of the target and the width of the finger pad that is being
used to hit the target. 相似文献
32.
Sven Ove Hansson 《Journal of Philosophical Logic》2012,41(1):143-172
In order to clarify the problems of iterated (global) belief change it is useful to study simple cases, in particular consecutive
contractions by sentences that are both logically and epistemically independent. Models in which the selection mechanism is
kept constant are much more plausible in this case than what they are in general. One such model, namely uniform specified
meet contraction, has the advantage of being closely connected with the AGM model. Its properties seem fairly adequate for
the intended type of contraction. However, the revision operator based on it via the Levi identity collapses into an implausible
operation that loses all old information when revising by new information. A weaker version, semi-uniform specified meet contraction,
avoids the collapse but has the disadvantage of a remarkably weak logic. It is left as an open issue whether there is an intermediate
class of contraction operators that yields a more satisfactory logic. 相似文献
33.
Sven Dupré 《Synthese》2012,185(3):501-525
This paper argues that Kepler considered his work in optics as part of natural philosophy and that, consequently, he aimed
at change within natural philosophy. Back-to-back with John Schuster’s claim that Descartes’ optics should be considered as
a natural philosophical appropriation of innovative results in the tradition of practical and mixed mathematics the central
claim of my paper is that Kepler’s theory of optical imagery, developed in his Paralipomena ad Vitellionem (1604), was the result of a move similar to Descartes’ by Kepler. My argument consists of three parts. First, Kepler borrowed
a geometrical model and experiment of optical imagery from the mélange of mixed and practical mathematics provided in the
works of the sixteenth-century mathematicians Ettore Ausonio and Giovanni Battista Della Porta. Second, Kepler criticized
the Aristotelian theory of light and he developed his own alternative metaphysics. Third, Kepler used his natural philosophical
assumptions about the nature of light to re-interpret the model of image formation taken from Della Porta’s work. Taken together,
I portray Kepler’s theory of optical imagery as a natural philosophical appropriation of an innovative model of image formation
developed in a sixteenth-century practical and mixed mathematical tradition which was not interested in questioning philosophical
assumptions on the nature of light. 相似文献
34.
Dr. phil. Olaf Knellessen 《Forum der Psychoanalyse》2011,27(4):329-337
Starting from some aspects of a case study the clinical significance of the concept of ambivalence will be exposed. It will be shown that beyond all the different symptoms ambivalence plays an important role in evenly-suspended attention, a concept which was developed by Freud at nearly the same time as ambivalence itself. As far as this attention is not freely suspended, ambivalence means that the suspension is always threatened by the danger of a crash. When it is right, that from a psychoanalytical viewpoint the achievement of the subject lies particularly in a misachievement, in the Freudian slip, the promise of efficiency and cure in an analysis will prove itself in its failure. The young man in the case study tells the psychoanalysis about the ambivalences it is involved in and in this he is very efficient. Ambivalence as an essential part of the evenly-suspended attention will reveal itself as a strong means of deconstructing efficiency. 相似文献
35.
36.
37.
Hoffmann Alexandra Maran Thomas Grünbaum Tilman Liegl Simon Lobis Ulrich Sachse Pierre 《Motivation and emotion》2022,46(2):291-291
Motivation and Emotion - Mourning constitutes an important human emotion, which might cause—among other things—major depressive symptoms when lasting for too long. To date, no study... 相似文献
38.
Sven Bernecker 《Philosophical Issues》2014,24(1):1-23
Given how epistemologists conceive of understanding, to what degree do we understand the hypothesis of extended mind? If the extended mind debate is a substantive dispute, then we have only superficial understanding of the extended mind hypothesis. And if we have deep understanding of the extended mind hypothesis, then the debate over this hypothesis is nothing but a verbal dispute. 相似文献
39.
Mikaela J. Dufur John P. Hoffmann Lance D. Erickson 《Journal of child and family studies》2018,27(3):802-815
Research suggests that children of single parents are at heightened risk of precocious sexual behavior, STDs, and other risky sexual outcomes. However, few such studies have addressed the type of single-parent family (single mother or single father), or differences across other-sex parent–child dyads. While gender essentialist models assume differences among youth living only with mothers or with fathers, constructivist models propose more flexible modes of parenting that lead to more similar outcomes. Using data from the National Longitudinal Study of Adolescent to Adult Health (n?=?2570) on youth between the ages of 15 and 19, we compared sexually-related outcomes among adolescents, both boys and girls, who lived with a single mother or a single father. These outcomes include sexual intercourse and knowledge, use of contraception, attitudes toward intimacy and pregnancy, and diagnosis of sexually-transmitted diseases. The results from linear and logistic regression models indicated few differences between single-mother and single-father families, or between same-sex and opposite-sex parent–child matches, using p values of .05 or smaller. Our results called into question essentialist models that posit higher risks for adolescents living with a particular parent or with an opposite-sex parent. 相似文献
40.
It is well established that digit span in native Chinese speakers is atypically high. This is commonly attributed to a capacity for more rapid subvocal rehearsal for that group. We explored this hypothesis by testing a group of English-speaking native Mandarin speakers on digit span and word span in both Mandarin and English, together with a measure of speed of articulation for each. When compared to the performance of native English speakers, the Mandarin group proved to be superior on both digit and word spans while predictably having lower spans in English. This suggests that the Mandarin advantage is not limited to digits. Speed of rehearsal correlated with span performance across materials. However, this correlation was more pronounced for English speakers than for any of the Chinese measures. Further analysis suggested that speed of rehearsal did not provide an adequate account of differences between Mandarin and English spans or for the advantage of digits over words. Possible alternative explanations are discussed. 相似文献