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71.
Stefan Kaufmann 《Journal of Philosophical Logic》2009,38(1):1-53
The fact that the standard probabilistic calculus does not define probabilities for sentences with embedded conditionals is
a fundamental problem for the probabilistic theory of conditionals. Several authors have explored ways to assign probabilities
to such sentences, but those proposals have come under criticism for making counterintuitive predictions. This paper examines
the source of the problematic predictions and proposes an amendment which corrects them in a principled way. The account brings
intuitions about counterfactual conditionals to bear on the interpretation of indicatives and relies on the notion of causal
(in)dependence. 相似文献
72.
Limb apraxia is a neurological disorder of higher cognitive function characterized by an inability to perform purposeful skilled
movements and not attributable to an elementary sensorimotor dysfunction or comprehension difficulty. Corticobasal Syndrome
(CBS) is an akinetic rigid syndrome with asymmetric onset and progression with at least one basal ganglia feature (rigidity,
limb dystonia or myoclonus) and one cortical feature (limb apraxia, alien hand syndrome or cortical sensory loss). Even though
limb apraxia is highly prevalent in CBS (70–80%), very few studies have examined the performance of CBS patients on praxis
measures in detail. This review aims to (1) briefly summarize the clinical, neuroanatomical and pathological findings in CBS,
(2) briefly outline what limb apraxia is and how it is assessed, (3) to comprehensively review the literature on limb apraxia
in CBS to date and (4) to briefly summarize the literature on other forms of apraxia, such as limb-kinetic apraxia and buccofacial
apraxia. Overall, the goal of the review is to bring a model-based perspective to the findings available in the literature
to date on limb apraxia in CBS. 相似文献
73.
Hartmann Scheiblechner 《Psychometrika》2007,72(1):43-67
The (univariate) isotonic psychometric (ISOP) model (Scheiblechner, 1995) is a nonparametric IRT model for dichotomous and
polytomous (rating scale) psychological test data. A weak subject independence axiom W1 postulates that the subjects are ordered
in the same way except for ties (i.e., similarly or isotonically) by all items of a psychological test. A weak item independence
axiom W2 postulates that the order of the items is similar for all subjects. Local independence (LI or W3) is assumed in all
models. With these axioms, sample-free unidimensional ordinal measurements of items and subjects become feasible. A cancellation
axiom (Co) gives, as a result, the additive isotonic psychometric (ADISOP) model and interval scales for subjects and items,
and an independence axiom (W4) gives the completely additive isotonic psychometric (CADISOP) model with an interval scale
for the response variable (Scheiblechner, 1999). The d-ISOP, d-ADISOP, and d-CADISOP models are generalizations to d-dimensional dependent variables (e.g., speed and accuracy of response).
The author would like to thank an Associate Editor and two anonymous referees and also Professor H.H. Schulze for their very
valuable suggestions and corrections. 相似文献
74.
整体-局部范式下的负启动效应 总被引:2,自引:0,他引:2
在通常的负启动范式基础上 ,以小数字构成的大数字 ,即以同时具有整体特征和局部特征的复合数字为实验材料 ,采用数字命名任务 ,将刺激画面中复合数字的数目和注意指向作为变量进行实验。大学生充任被试。结果发现 ,在单个复合数字条件下对同一客体的非注意指向的特征进行忽略重复 ,注意整体时出现负启动 ,而注意局部时不出现负启动 ;在两个复合数字条件下对启动刺激中充当干扰项的复合数字进行忽略重复 ,则注意整体与注意局部都出现了负启动。该研究表明 ,在不同注意指向时 ,整体 -局部范式下的负启动效应具有知觉组织的层次性 ,并显示出客体内选择和客体间选择对负启动的不同影响。 相似文献
75.
认知与情绪相互关系的实验研究——刺激的局部知觉特征改变对再认成份的影响 总被引:1,自引:1,他引:0
通过实验性分离,考察了刺激材料的局部知觉特征的改变如何影响再认的加工过程。结果发现刺激的局部知觉特征改变主要影响了再认的自动提取加工,对于意识性提取加工影响不大。综合前期的研究结果,对人的认知系统如何加工信息以唤醒情绪与再认的过程及其特点进行了深入分析。 相似文献
76.
Catherine Campbell Pamela Gillies 《Journal of community & applied social psychology》2001,11(5):329-346
This paper reports on a micro‐qualitative case study of peoples' experiences of local community life in a south‐east English town. This material is used as the basis for a critical discussion of the suitability of Putnam's notion of social capital as a conceptual tool for the design and evaluation of ‘community strengthening’ policies and interventions. The study was motivated by a concern that too much debate about social capital has been conducted by academics and policy‐makers in a top‐down manner, with inadequate attention to the realities of life in the local communities that they refer to. Three‐hour semi‐structured interviews were conducted with 37 residents in two less affluent wards in our town of interest. Informants—half men and half women, and spread across the 15–75 age group—were encouraged to talk about their personal experiences of local community life. Interview findings are presented within the ‘norm’ categories of trust, neighbourliness and reciprocal help and support, and the ‘network’ categories of participation in informal networks, voluntary groupings and community activist groupings. Our case study points to a number of ways in which Putnam's concept needs to be refined if it is to inform ‘community strengthening’ policies and interventions in England. Far more notice needs to be taken of the role played by informal networks of friends and neighbours in the construction of local community life. Attention also needs to be given to the complex and shifting geographical spread of peoples' significant social networks. Putnam's conceptualization of cohesive local communities and his unitary notions of trust and local identity may also be unduly essentialist. In our particular communities of interest, they failed to capture the fluidity of local community norms and networks in a rapidly changing society. They also failed to do justice to the extent to which social distinctions—such as age, gender, ethnicity and housing tenure—shape and constrain the way in which people create, sustain and access social capital. Copyright © 2001 John Wiley & Sons, Ltd. 相似文献
77.
Donald E. Arther 《Zygon》2001,36(2):261-267
Where do Paul Tillich's views of the relationship between religion and science fit in Ian Barbour's four classifications of conflict, independence, dialogue, and integration? At different levels of analysis, he fits in all of them. In concrete religions and sciences, some conflict is evident, but religion and science can be thought of as having parallel perspectives, languages, and objectives. Tillich's method of correlation itself is a form of dialogue. His theology of nature in “Life and the Spirit” (Part 4 of his Systematic Theology) fits the integration type. His strong “Two Types of Philosophy of Religion” (in Theology of Culture) is a latent natural theology. His system of the sciences is a form of synthesis, a type of integration. 相似文献
78.
Robert J. Jannarone 《Psychometrika》1986,51(3):357-373
Conjunctive item response models are introduced such that (a) sufficient statistics for latent traits are not necessarily additive in item scores; (b) items are not necessarily locally independent; and (c) existing compensatory (additive) item response models including the binomial, Rasch, logistic, and general locally independent model are special cases. Simple estimates and hypothesis tests for conjunctive models are introduced and evaluated as well. Conjunctive models are also identified with cognitive models that assume the existence of several individually necessary component processes for a global ability. It is concluded that conjunctive models and methods may show promise for constructing improved tests and uncovering conjunctive cognitive structure. It is also concluded that conjunctive item response theory may help to clarify the relationships between local dependence, multidimensionality, and item response function form.I appreciate the many helpful suggestions that were given by the reviewers and Ivo Molenaar. 相似文献
79.
脑外伤患者内隐记忆康复护理可行性研究 总被引:5,自引:0,他引:5
探讨脑外伤患者在高强度练习和准确反馈条件下,内隐学习知识效应和底层规则迁移易化能力。结果发现:①脑外伤患者在汉字整体偏好深加工的非显著特征学习与对照组一样有效;在笔划浅加工的显著特征学习,明显低于对照组;在自由回忆和再认的重复测验中,患者组与对照组存在显著性差异。②脑外伤患者学习记忆具有整体性、直观性、模糊抽象性、无意识性等特点。③脑外伤患者存在着内隐学习知识效应和内隐知识学习效应,且随着训练强化和训练方法的改进,有增强和外显记忆转化的趋势。 相似文献
80.
The manner in which the conditional independence graph of a multiway contingency table effects the fitting and interpretation of the Goodman association model (RC) and of correspondence analysis (CA) is considered.Estimation of the row and column scores is presented in this context by developing a unified framework that includes both models. Incorporation of the conditional independence constraints inherent in the graph may lead to equal or additive scores for the corresponding marginal tables, depending on the topology of the graph. An example of doubly additive scores in the analysis of a Burt subtable is given.Thanks are due to anonymous referees who substantially improved the original draft of this paper. 相似文献