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The choice of constraints in correspondence analysis 总被引:2,自引:0,他引:2
Harvey Goldstein 《Psychometrika》1987,52(2):207-215
A discussion of alternative constraint systems has been lacking in the literature on correspondence analysis and related techniques. This paper reiterates earlier results that an explicit choice of constraints has to be made which can have important effects on the resulting scores. The paper also presents new results on dealing with missing data and probabilistic category assignment.I am most grateful to the following for their helpful comments. Arto Demirjian, Michael Greenacre, Michael Healy, Shizuhiko Nishisato, Roderick Mcdonald, and several anonymous referees. 相似文献
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Although much is known about how some primates—in particular, monkeys and apes—represent and enumerate different numbers of objects, very little is known about the numerical abilities of prosimian primates. Here, we explore how four lemur species (Eulemur fulvus, E. mongoz, Lemur catta, and Varecia rubra) represent small numbers of objects. Specifically, we presented lemurs with three expectancy violation looking time experiments aimed at exploring their expectations about a simple 1+1 addition event. In these experiments, we presented subjects with displays in which two lemons were sequentially added behind an occluder and then measured subjects duration of looking to expected and unexpected outcomes. In experiment 1, subjects looked reliably longer at an unexpected outcome of only one object than at an expected outcome of two objects. Similarly, subjects in experiment 2 looked reliably longer at an unexpected outcome of three objects than at an expected outcome of two objects. In experiment 3, subjects looked reliably longer at an unexpected outcome of one object twice the size of the original than at an expected outcome of two objects of the original size. These results suggest that some prosimian primates understand the outcome of simple arithmetic operations. These results are discussed in light of similar findings in human infants and other adult primates.This revised version was published online in March 2005 with corrections to Fig. 6. 相似文献
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Dorothée?LegrandEmail author Franck?Grammont 《Phenomenology and the Cognitive Sciences》2005,4(3):249-257
We discuss the justification of Bickle's “ruthless” reductionism. Bickle intends to show that we know enough about neurons
to draw conclusions about the “whole” brain and about the mind. However, his reductionism does not take into account the complexity
of the nervous system and the fact that new properties emerge at each significant level of integration from the coupled functioning
of elementary components. From a methodological point of view, we argue that neuronal and cognitive models have to exert a
mutual constraint(MC) on each other. This approach would refuse to award any priority of cognitive approaches over neuroscience, and reciprocally,
to refuse any priority of neuroscience over cognitive approaches. MC thus argues against radicalreductionism at the methodological level. 相似文献
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Few studies have examined whether non-human tool-users understand the properties that are relevant for a tool's function.
We tested cotton-top tamarins (Saguinus oedipus) and rhesus macaques (Macaca mulatta) on an expectancy violation procedure designed to assess whether these species make distinctions between the functionally
relevant and irrelevant features of a tool. Subjects watched an experimenter use a tool to push a grape down a ramp, and then
were presented with different displays in which the features of the original tool (shape, color, orientation) were selectively
varied. Results indicated that both species looked longer when a newly shaped stick acted on the grape than when a newly colored
stick performed the same action, suggesting that both species perceive shape as a more salient transformation than color.
In contrast, tamarins, but not rhesus, attended to changes in the tool's orientation. We propose that some non-human primates
begin with a predisposition to attend to a tool's shape and, with sufficient experience, develop a more sophisticated understanding
of the features that are functionally relevant to tools. 相似文献
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Mutsumi Imai 《The Japanese psychological research》1999,41(1):5-20
Many researchers have agreed that word learning in young children is guided by so-called "word-learning principles." However, these principles may make it difficult to learn a substantial part of the lexicon unless they are appropriately controlled. To learn proper names, the taxonomic assumption and/or the shape bias must be overridden; to learn names for substances, withdrawal of the whole-object assumption and/or the shape bias is required; and to learn lexical hierarchies, the mutual exclusivity assumption must be suspended. In certain languages, syntax can provide useful information in this situation. For example, if a novel noun is given to an object for which the name is known in the syntactic frame "This is X," English-speaking children may assume the noun to be a proper noun, and this will help them override the taxonomic assumption. However, this information is not available to Japanese children, since the Japanese language does not have grammatical markers to flag the distinction between count nouns and mass nouns, or the distinction between proper nouns and common nouns. In this paper, I discuss how Japanese children get around this problem. 相似文献
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尽管“限制解除”作为一种顿悟问题解决的关键途径早在上世纪90年代就被德国心理学者Knoblich及其同事提出, 但学界对于“限制解除”所包含的信息加工程序、阶段以及相应的脑认知过程却并未有进一步的探讨和细化。本文从“限制解除”的理论角度出发, 以答案提示催化的“诱发式”字谜解决顿悟为例, 首次提出了一个关于“诱发式”限制解除过程的信息加工阶段初步构想。该构想认为:顿悟问题解决中的“诱发式”限制解除过程包含3个不同的信息加工阶段。第一阶段是以早期注意参与为特征的冲突信息的预警或预处理过程; 第二阶段是以新旧思路交替为特征的关键限制解除过程, 鉴于这个过程以基本问题表征空间的拓展为特征, 因此我们推测右脑的活动很有可能在这个过程中占据主导地位; 第三阶段是以自上而下的控制加工为特征的重新整合过程。脑电研究数据部分地支持了本研究的假设, 发现了上述第一阶段在脑电变化上体现为顿悟性限制解除所伴随的N100/P200复合体; 第二阶段体现为P300在300~400 ms的时间窗内的地形图分布及差异波; 而第三阶段则体现为N400在400~800 ms内的变化。脑电结果还证实:在第二阶段也就是限制解除的关键阶段, 右脑的活动明显强于左脑, 提示基本问题空间的拓展可能更多地依赖于右脑, 而在第三阶段也就是信息的重新整合阶段则表现出相反的半球偏侧化倾向。上述发现有可能为进一步认识和理解顿悟中“限制解除”的脑认知机理提供了新的见解。 相似文献
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贬损型幽默指包含贬损意味同时令人发笑的信息。释放论、优越论、失谐?解决理论与良性进犯理论尝试解释了其心理机制。贬损不一定好笑,群体身份和态度、接收者与贬损对象的心理距离以及人格、文化差异等均会影响幽默效果。贬损型幽默可以起到释放偏见与表达社会支配倾向的作用,对人际交往的作用则不一致。贬损型幽默的整合性过程模型串联描述了贬损型幽默的机制、前因和后效,可作为未来研究的框架。未来亦可继续探讨贬损型幽默的消极影响,以及其对群际关系和社会公平的潜在积极作用,并关注到中国社会文化背景下的贬损型幽默。 相似文献
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