类别学习的阻碍效应与双机制理论

通过对类别学习中的阻碍效应进行系统研究,尝试性的提出了类别学习的双机制理论。三个实验分别考察：当样例特征随机呈现时;定义特征固定呈现在样例首位时;以及刺激材料为知觉图形材料时,类别学习中的阻碍效应。三个实验的研究结果都发现：在类别学习中存在一定程度的阻碍效应,支持类别学习同时存在联结学习机制和认知学习机制的双机制观点。     

Activating Basic Category Exemplars in Sentence Contexts: A Dynamical Account

This paper examines the influence of context on the processing of category names embedded in sentences. The investigation focuses on the nature of information available immediately after such a word is heard as well as on the dynamics of adaptation to context. An on-line method (Cross Modal Lexical Priming) was used to trace how this process unfolds in time. We found that the information available immediately after a category word is presented is not altered by the sentence context in which the word is immersed. Rather, the structure of availability of particular exemplars of the category resembles the typicality structure of a conceptual representation. The adaptation to context occurs later (between 300 and 450 ms after the category word) and takes the form of a rapid reorganization of the structure rather than a gradual activation of a contextually relevant exemplar. We claim that such data is best accounted for in a dynamical framework, where a coherent global structure emerges through locally guided self-organization.     

Metaphor‐Proof Expressions: A Dimensional Account of the Metaphorical Uninterpretability of Aesthetic Terms

In this article, I start with the observation that aesthetic terms resist metaphorical interpretation; that is, it makes little sense to say that something is beautiful metaphorically speaking or to say something is metaphorically elegant, harmonious, or sublime. I argue that aesthetic terms’ lack of metaphorical interpretations is not explained by the fact that their applicability is not limited to a particular category of objects, at least in the standard sense of ‘category.’ In general, I challenge category‐based accounts of metaphorical interpretability and instead offer an alternative explanation for aesthetic terms’ lack of metaphorical interpretations, one that involves the notion of context shifts rather than category violations. I argue that what is required for metaphorical interpretability is the joint satisfaction of two conditions: (i) multidimensionality and (ii) the presence of a default dimension. Aesthetic terms lack metaphorical readings because they fail to satisfy (ii), even though they satisfy (i). I argue that the alternative account I offer is predictively adequate, more parsimonious, less subject to counterexamples, and hence preferable to the category‐based one.     

中国画审美一致性的专业知识效应:一项fNIRS研究

本研究结合fNIRS技术,考察了美术训练学生和普通学生在中国画审美一致性上的差异。行为上,虽然两组被试在审美评分上没有显著差异,但在评分一致性上,美术训练学生相比普通学生在“好看”评分上更一致。脑活动上,美术训练学生右侧颞顶联合区的16通道和24通道的神经活动一致性显著高于普通学生,且美术训练学生的神经活动一致性与“好看”评分呈负相关。本研究揭示了艺术专业知识对中国画审美的重要性,且神经活动一致性可作为中国画审美判断的一项潜在神经标记。     

The Art of Being Human: A Project for General Philosophy of Science

Throughout the medieval and modern periods, in various sacred and secular guises, the unification of all forms of knowledge under the rubric of ??science?? has been taken as the prerogative of humanity as a species. However, as our sense of species privilege has been called increasingly into question, so too has the very salience of ??humanity?? and ??science?? as general categories, let alone ones that might bear some essential relationship to each other. After showing how the ascendant Stanford School in the philosophy of science has contributed to this joint demystification of ??humanity?? and ??science??, I proceed on a more positive note to a conceptual framework for making sense of science as the art of being human. My understanding of ??science?? is indebted to the red thread that runs from Christian theology through the Scientific Revolution and Enlightenment to the Humboldtian revival of the university as the site for the synthesis of knowledge as the culmination of self-development. Especially salient to this idea is science??s epistemic capacity to manage modality (i.e. to determine the conditions under which possibilities can be actualised) and its political capacity to organize humanity into projects of universal concern. However, the challenge facing such an ideal in the twentyfirst century is that the predicate ??human?? may be projected in three quite distinct ways, governed by what I call ??ecological??, ??biomedical?? and ??cybernetic?? interests. Which one of these future humanities would claim today??s humans as proper ancestors and could these futures co-habit the same world thus become two important questions that general philosophy of science will need to address in the coming years.     

Generalization in Human Category Learning: A Connectionist Account of Differences in Gradient after Discriminative and Non discriminative Training

Two experiments are reported that investigate the difference in gradient of generalization observed between one-category (non-discriminative) and two-category (discriminative) training. Extrapolating from the results of a number of animal learning studies, it was predicted that the gradient should be steeper under discriminative training. The first experiment confirms this basic prediction for the stimuli used, which were novel, prototype-structured, and constructed from 12 symbols positioned on a grid. An explanation for the effect, based on the Rescorla-Wagner theory of Pavlovian conditioning (Rescorla & Wagner, 1972), is that under non-discriminative training 'incidental stimuli' have significant control over responding,whereas under discriminative training they do not. Incidental stimuli are those aspects of the stimulus, or the surrounding context, that are not differentially reinforced under discriminative training. This explanation leads to the prediction that a comparable effect of blocked versus intermixed discriminative training should also be found. This prediction is disconfirmed by the second experiment. An alternative model, still based on the RescorlaWagner theory but with the addition of a decision mechanism comprising a threshold unit and a competitive network system, is proposed, and its ability to predict both the choice probabilities and the pattern of response times found is evaluated via simulation.     

From Ode to Sport To Contemporary Aesthetic Categories of Sport: Strength Considered as an Aesthetic Category

The standpoint of this paper is the distinguished Ode to Sport from Pierre de Coubertin, specifically the second part of the elegy, the one concerning beauty. Starting with “O Sport, you are Beauty!”, Pierre de Coubertin mentions, beyond beauty, an assemblage of aesthetic categories such as sublime, abject, balance, proportion, harmony, rhythm and grace. He also mentions strength, power and suppleness. Although the first quoted categories are general categories of aesthetics, it seems quite relevant to emphasize the need of the author to introduce specific categories that fits to body movement and sport, such as strength, power and suppleness. There is no doubt that the first group of categories also fits to sport and body movement, but it equally fits to different forms of art, while strength, power and suppleness can only be literally applied to sport and performing arts.

The purpose of this paper is to analyze strength as an aesthetic category of sport, developing three main arguments: the feeling of achievement and its conservation, the fight against gravity and the multiple forms of strength’s expression.

It is concluded that strength can improve the communicative power of sport and its emotional appeal. In sports such as gymnastics, diving or synchronized swimming, the appreciation of strength exhibited by the athletes communicates to the observer some king of ease and lightness that enhances the aesthetic judgment. In other sports like weightlifting, sumo or rugby, effort and heaviness are stamped on the athlete's faces, what contributes to a sort of communion between the observer and the athlete that can also improve the aesthetic experience.     

The Importance of Being Emergent: A Theoretical Exploration of Impression Formation in Novel Social Category Conjunctions

Social category conjunction is a form of multiple categorization involving the combination of two simultaneously salient constituent categories to form a complex category (e.g., female soldier). Research has reliably demonstrated that perceivers often apply emergent traits when forming impressions of novel incongruent social category conjunctions, that is, traits not associated with the simple constituent categories (e.g., Kunda, Miller, & Claire, 1990 ). However, the theoretical literature modeling the mechanisms underlying impression formation in novel social category conjunctions is less well established and inconsistent. In this article, we critically evaluate the current state of empirical research and theory on novel social category conjunction, with particular reference to emergent traits, aiming to provide a more coherent framework for future research and theory. In addition, we seek to emphasize the wider importance of emergent traits, by drawing out links between research and theory on social category conjunctions with broader perspectives of impression formation.     

Birth of an Abstraction: A Dynamical Systems Account of the Discovery of an Elsewhere Principle in a Category Learning Task

Human participants and recurrent (“connectionist”) neural networks were both trained on a categorization system abstractly similar to natural language systems involving irregular (“strong”) classes and a default class. Both the humans and the networks exhibited staged learning and a generalization pattern reminiscent of the Elsewhere Condition (Kiparsky, 1973). Previous connectionist accounts of related phenomena have often been vague about the nature of the networks’ encoding systems. We analyzed our network using dynamical systems theory, revealing topological and geometric properties that can be directly compared with the mechanisms of non‐connectionist, rule‐based accounts. The results reveal that the networks “contain” structures related to mechanisms posited by rule‐based models, partly vindicating the insights of these models. On the other hand, they support the one mechanism (OM), as opposed to the more than one mechanism (MOM), view of symbolic abstraction by showing how the appearance of MOM behavior can arise emergently from one underlying set of principles. The key new contribution of this study is to show that dynamical systems theory can allow us to explicitly characterize the relationship between the two perspectives in implemented models.     

Art, Practical Knowledge and Aesthetic Objectivity

It seems often to have been assumed by art theorists and aestheticians that concepts of art and the aesthetic are related, if not actually identical. In recent times, however, David Best has criticized this widespread assumption in the interests of marking a quite radical distinction between artistic and aesthetic concerns. But this claim may be considered problematic in turn, not only in terms of its denial of the conventional conception of art as implicated in the production of aesthetic effects, but also because it obscures our understanding of the objectivity of aesthetic judgement – and hence, ultimately, of the rational basis of artistic appreciation and endeavour. In the light of some critical attention to Joseph Dunne's recent work on practical reason in Aristotle, the following paper argues that a suitably modified notion of phronesis may provide the key to understanding the relationship of aesthetic sensibility to artistic knowledge.