Constraints on Colour Category Formation

This article addresses two questions related to colour categorization, to wit, the question what a colour category is, and the question how we identify colour categories. We reject both the relativist and universalist answers to these questions. Instead, we suggest that colour categories can be identified with the help of the criterion of psychological saliency, which can be operationalized by means of consistency and consensus measures. We further argue that colour categories can be defined as well-structured entities that optimally partition colour space. We provide some empirical support for this claim by presenting experimental results, which indicate that internal structure is a better predictor of colour categories than perceptual saliency.     

Distributional Models of Category Concepts Based on Names of Category Members

Cognitive scientists have long used distributional semantic representations of categories. The predominant approach uses distributional representations of category-denoting nouns, such as “city” for the category city. We propose a novel scheme that represents categories as prototypes over representations of names of its members, such as “Barcelona,” “Mumbai,” and “Wuhan” for the category city. This name-based representation empirically outperforms the noun-based representation on two experiments (modeling human judgments of category relatedness and predicting category membership) with particular improvements for ambiguous nouns. We discuss the model complexity of both classes of models and argue that the name-based model has superior explanatory potential with regard to concept acquisition.     

自然概念语义特征提取的范畴效应

本研究采用概念特征自由列举实验范式,考察三类范畴(动物、自然食物、人造物)自然概念的语义特征提取反应时间的范畴效应。结果表明,⑴语义特征提取的反应时间存在范畴效应:提取动物特征的时间显著短于提取自然食物特征的时间,提取自然食物特征的时间显著短于提取人造物特征的时间;⑵三类范畴的特征提取时间模式表现出相同的规律:先是显著降低(第1到第2个特征),然后持续升高(第2到第10个特征)。语义特征提取的范畴效应反映了语义记忆组织的范畴特异性,有必要进一步分析特征提取时间与特征类型、关联特征、独有特征之间的关系,以深入揭示语义特征提取范畴效应的产生机制。     

Environment and Goals Jointly Direct Category Acquisition

Abstract— Developing categorization schemes involves discovering structures in the world that support a learner's goals. Existing models of category learning, such as exemplar and prototype models, neglect the role of goals in shaping conceptual organization. Here, a clustering approach is discussed that reflects the joint influences of the environment and goals in directing category acquisition. Clusters are a flexible representational medium that exhibits properties of exemplar, prototype, and rule-based models. Clusters reflect the natural bundles of correlated features present in our environment. The clustering model Supervised and Unsupervised Stratified Incremental Adaptive Network (SUSTAIN) operates by assuming the world has a simple structure and adding complexity (i.e., clusters) when existing clusters fail to satisfy the learner's goals and thus elicit surprise. Although simple, this operation is sufficient to address findings from numerous laboratory and cross-cultural categorization studies.     

Contrastive Constraints Guide Explanation‐Based Category Learning

This paper provides evidence for a contrastive account of explanation that is motivated by pragmatic theories that recognize the contribution that context makes to the interpretation of a prompt for explanation. This study replicates the primary findings of previous work in explanation‐based category learning (Williams & Lombrozo, 2010), extending that work by illustrating the critical role of the context in this type of learning. Participants interacted with items from two categories either by describing the items or explaining their category membership. We manipulated the feature overlap between the categories and examined both the explanations generated and acquired knowledge of the categories. Explanations for membership in a given category were influenced by the unprompted contrast category, indicating an important role for contrastive processing in the generation of explanations. The influence of the contrast category was similarly seen in the transfer performance of the participants.     

Teaching by Examples: Implications for the Process of Category Acquisition

A new paradigm, the 'teaching-by-examples' paradigm, was used to shed new light on the process of category acquisition. In four experiments ( n = 90, 90, 115, 117), manipulating the variables of category structure, status of non-target category, learning mode, and teaching mode, participants first learned a category and then taught it to someone else. High agreement between participants on the teaching sequences was found across conditions, and a typical sequence was identified for each category structure. The typical participant-produced sequences startedwith several ideal positive cases, followed by anideal negative case and then borderline cases. The efficiency of such sequences for teaching was tested in another experiment ( n = 60), in which they were compared with sequences emphasizing category borders and sequences emphasizing each dimension separately. The typical participant-produced sequences induced the most efficient learning. It is proposed that the pattern of performance may provide a rich source of data for testing and fine-tuning models of category acquisition.     

特征类型在组合概念范畴效应中的作用

组合概念范畴效应是指,人们解释不同范畴组合概念的策略存在差异。本研究通过特征列举实验和建构路径模型,检验概念的特征类型在组合概念范畴效应中的作用。特征列举实验的结果表明,生物的实体特征比率高于人造物,而人造物的情境特征比率高于生物。路径分析的结果表明：⑴修饰词的实体特征比率显著影响属性解释比率,修饰词具有较多实体特征的组合概念得到属性解释的比率较高;⑵主名词的情境特征比率对关系解释比率的影响不显著;⑶将特征类型引入路径模型后,范畴对解释策略的影响依然显著。因此,范畴间的特征类型差异会影响组合概念范畴效应,但还存在其他影响因素有待进一步研究。     

Social Constraints on the Direct Perception of Emotions and Intentions

In this paper, we first review recent arguments about the direct perception of the intentions and emotions of others, emphasizing the role of embodied interaction. We then consider a possible objection to the direct perception hypothesis from social psychology, related to phenomena like ‘dehumanization’ and ‘implicit racial bias’, which manifest themselves on a basic bodily level. On the background of such data, one might object that social perception cannot be direct since it depends on and can in fact be interrupted by a set of cultural beliefs. We argue, however, that far from threatening the idea of direct perception, these findings clearly contradict the idea of hardwired theory of mind modules. More generally, we suggest that in order to further the understanding of social cognition we must take seriously insights about in-group and out-group distinctions and related phenomena, all of which are currently neglected in the mainstream social cognition literature.     

Comparison Versus Contrast: Task Specifics Affect Category Acquisition

A large literature has documented that comparison and contrast lead to better performance in a variety of tasks. However, studies of comparison and contrast present contradictory conclusions as to when and how these processes benefit learners. Across four studies, we examined how the specifics of the comparison and contrast task affect performance by systematically manipulating the feature variation and category structure in a category extension task performed by 3‐year‐old and 4‐year‐old children. Studies 1 (n = 48, M = 42.6 months) and 2 (n = 48, M = 42. 4 months) investigated comparison and contrast with high‐density categories. Studies 3A (n = 60, M = 43.47 months), 3B (n = 48, M = 53. 2 months) and 4 (n = 48, M = 53.7 months) investigated comparison and contrast with low‐density categories. Results indicated both category structure and feature variation affect the efficacy of comparison and contrast. Copyright © 2012 John Wiley & Sons, Ltd.     

Social Constraints on Disclosure and Adjustment to Cancer

This article introduces the concept of social constraints on disclosure, puts it in a theoretical framework, and examines how it can affect adjustment to major life stressors using the exemplar of cancer. Cancer is a leading cause of death and disability worldwide. It is often life threatening, disfiguring, and unpredictable; hence, it can undermine people's basic and often positive beliefs and expectations about themselves, their future, and social relationships. For many people with cancer, it is important to come to terms psychologically with the illness – to make sense of or somehow accept the reality of it. People often do this by thinking about different aspects of the disease and its implications for their life, but also through socially processing, or talking about, their cancer-related thoughts, feelings, and concerns with others. When people experience social constraints on their disclosure of cancer-related thoughts and feelings, it can adversely affect how they think and talk about their illness, their coping behaviors, and psychological adjustment. In addition to discussing mechanisms and consequences of social constraints on disclosure, we discuss some of its determinants and future research directions.     

A Probabilistic Constraints Approach to Language Acquisition and Processing

This article provides an overview of a probabilistic constraints framework for thinking about language acquisition and processing. The generative approach attempts to characterize knowledge of language (i.e., competence grammar) and then asks how this knowledge is acquired and used. Our approach is performance oriented: the goal is to explain how people comprehend and produce utterances and how children acquire this skill. Use of language involves exploiting multiple probabilistic constraints over various types of linguistic and nonlinguistic information. Acquisition is the process of accumulating this information, which begins in infancy. The constraint satisfaction processes that are central to language use are the same as the bootstrapping processes that provide entry to language for the child. Framing questions about acquisition in terms of models of adult performance unifies the two topics under a set of common principles and has important consequences for arguments concerning language learnability.     

婴儿期母语音位范畴习得：来自言语知觉的证据

婴儿期言语知觉研究表明婴儿最初（1~4个月）可以分辨几乎所有的语音范畴对比;随母语经验增加,婴儿言语知觉逐渐表现出母语语音特征的影响,辅音知觉表现为对母语语音范畴界限敏感性的提高和对非母语范畴界限敏感性的下降,非母语范畴开始同化到母语音系中去,母语元音知觉表现出知觉磁体效应。这些证据表明婴儿逐渐习得母语音位范畴,音位范畴习得顺序可能依赖范畴例子本身的声学特征、发生频率等因素     

Normative Social Role Concepts in Early Childhood

The current studies (N = 255, children ages 4–5 and adults) explore patterns of age‐related continuity and change in conceptual representations of social role categories (e.g., “scientist”). In Study 1, young children's judgments of category membership were shaped by both category labels and category‐normative traits, and the two were dissociable, indicating that even young children's conceptual representations for some social categories have a “dual character.” In Study 2, when labels and traits were contrasted, adults and children based their category‐based induction decisions on category‐normative traits rather than labels. Study 3 confirmed that children reason based on category‐normative traits because they view them as an obligatory part of category membership. In contrast, adults in this study viewed the category‐normative traits as informative on their own (not only as a cue to obligations). Implications for continuity and change in representations of social role categories will be discussed.     

社会能力:概念分析与模型建构

社会能力是心理学领域中一个经典的研究问题,但是至今仍没有统一的概念和理论模型.总结以往的有关研究,可以归纳出社会能力概念的几个取向,如技能取向、结果取向、综合取向等.在这些概念取向尤其是综合取向的指导之下,研究者也提出了一些比较有代表性的理论模型,如成分模型、过程模型和棱柱模型等.该文对这些概念取向和理论模型进行了综述并尝试提出了社会能力的整合观点,但关于社会能力的概念和理论模型尚需进一步完善,其文化差异问题也尚需未来研究的关注.     

Statistical Evaluation of Algebraic Constraints for Social Networks

A multirelational social network on a set of individuals may be represented as a collection of binary relations. Compound relations constructed from this collection represent various labeled paths linking individuals in the network. Since many models of interest for social networks can be formulated in terms of orderings among these labeled paths, we consider the problem of evaluating an hypothesized set of orderings, termed algebraic constraints. Each constraint takes the form of an hypothesized inclusion relation for a pair of labeled paths. In this paper, we establish conditions under which sets of such constraints may be regarded as partial algebras. We describe the structure of constraint sets and show that each corresponds to a subset of consistent relation bundles between pairs of individuals. We thereby construct measures of fit for a given constraint set. Then, we show how, in combination with the assumption of various conditional uniform multigraph distributions, these measures lead to a flexible approach to the evaluation of fit of an hypothesized constraint set. Several applications are presented and some possible extensions of the approach are briefly discussed. Copyright 2000 Academic Press.     

Social Concepts and Judgments: A Semantic Differential Analysis of the Concepts Feminist, Man, and Woman

Male and female participants  ( N = 274)  made judgments about the social concepts of feminist , man , and woman on 63 semantic differential items. Factor analysis identified three basic dimensions termed evaluative, potency, and activity as well as two secondary factors called expressiveness and sexuality. Results for the evaluative dimension showed that the concept feminist was rated negatively with male participants rating feminist more negatively than female participants. In terms of potency, feminist was judged higher than man whereas the concept woman was rated low on this dimension. Participants also judged the concept feminist as low in expressiveness and rated woman as the most expressive. Feminist received low ratings on the erotic-sexual dimension (sexuality) by female participants and negative sexuality ratings by men. These results are discussed in terms of social role theory, gender stereotypes, and the changes in women's roles and behavior.     

社会分类的概念、线索及影响机制

作为社会认知的基本过程和重要途径,社会分类对预测刻板印象和群际感知、减少多元文化群体中的关系冲突、促进推理与决策以及指导社会关系推断等都有重要作用。人们进行社会分类的线索可以概括为明显线索和模糊线索、自然线索和社会线索以及静态线索和动态线索。社会分类会受到分类对象、情境和感知者等的作用,同时对人们认知、情绪、情感和行为等产生一系列影响。未来可以基于跨文化和发展视角探讨社会分类的线索偏向、潜在机制及立足本土文化检验社会分类的影响及干预策略。