时序知觉影响因素与思考

时序知觉是在几十毫秒到几百毫秒内, 对事件的同时性、非同时性和顺序性的知觉。对时序知觉的影响因素的探索可分为自下而上和自上而下两种研究取向。自下而上的研究探讨刺激的物理特征、被试的生物学特征, 以及实验方法对时序知觉的影响。而自上而下的研究探讨因果信念、情绪、文化对时序知觉的影响。今后的研究还应结合行为实验与神经科学技术, 深入探讨时序知觉的两种加工方式是分离的还是同时进行的, 以及揭示控制时序加工的脑区。     

汉语主动句、被动句的命题表征项目顺序特点

以中国大学生为被试,采用句子—图画验证任务(sentence-picture verification task )探讨了中国学生理解汉语主动句、被动句所形成的命题表征中项目顺序特点。结果表明,无论是语义水平较高的不可逆句,还是语义水平较低的可逆句,中国学生理解汉语主动句、被动句所建构的命题表征中项目顺序均为“施事→受事”。本研究结果初步表明,中国学生理解汉语主动句和被动句时,能根据它们不同的表层结构（汉语主动句的语言表达顺序为“施事→受事”、汉语被动句的语言表达顺序为“受事→施事”）建构相同的深层结构（语义内容的命题表征项目顺序“施事→受事”）,可能是一个按照“施事→受事”固定方向进行的系列认知心理加工的过程     

Aggregation of opinions based on correlated cues and advisors

We study the process by which decision makers (DMs) aggregate probabilistic opinions from multiple, correlated sources with a special emphasis on the determinants of the DM's confidence, which is a predictor of the DM's willingness to accept the implications of the aggregation process. Our model assumes that (a) DM combines the advisors' opinions by weighting them according to the amount of information underlying them, and (b) the DM's confidence increases as a function of a variety of factors that reduce the variance of the aggregate. We report results of three studies that manipulate the predictive validity of the cues and their inter‐correlations. Most of the models' predictions are supported but, contrary to the model's prediction, the DMs' confidence is not sensitive to the inter‐cue correlation. The best predictors of the DMs' confidence are the perceived predictability of the event, the level of agreement among the advisors, and the advisors' self‐reports of confidence. This pattern of results is explained by the ‘system neglect’ hypothesis. Copyright © 2006 John Wiley & Sons, Ltd.     

发展和谐医患关系与医疗秩序重构

发展和谐医患关系是保持正常医疗秩序的重要前提,而目前的医疗秩序重构又是发展和谐医患关系的必然。和谐医患关系的基础是医疗卫生服务价值理念的普遍公正合理,它要求以”以人为本”作为价值取向,以“人人享有”作为目标模式,以“医疗公平”作为基本理念,以“利益平衡”作为政治前提,以“规范监管”作为制度保障,以“诚信互动”作为必要条件。     

The relation between language and cognition in 3- to 9-year-olds: the acquisition of grammatical gender in French

The French language has a grammatical gender system in which all nouns are assigned either a masculine or a feminine gender. Nouns provide two types of gender cues that can potentially guide gender attribution: morphophonological cues carried by endings and semantic cues (natural gender). The first goal of this study was to describe the acquisition of the probabilistic system based on phonological oppositions on word endings by French-speaking children. The second goal was to explore the extent to which this system affects categorization. In the study, 3- to 9-year-olds assigned gender categorization to invented nouns whose endings were typically masculine, typically feminine, or neutral. Two response conditions were used. In the determiner condition, children indicated the gender class by orally providing the determiner un or une marked for gender. In the picture condition, responses were given by pointing to the picture of a Martian-like female or male person that would be best called by each spoken pseudoword. Results indicated that as young as 3 years, children associated the determiner corresponding to the ending bias at greater than chance levels. Ending-consistent performance increased from 3 to 9 years of age. Moreover, from 4 years of age onward, sensitivity to endings affected categorization. Starting at that age, pictures were selected according to endings at greater than chance levels. This effect also increased with age. The discussion deals with the mechanisms of language acquisition and the relation between language and cognition.     

Vocal Features of Conversational Sarcasm: A Comparison of Methods

This study investigated vocal cues that differentiate sarcastic utterances from non-sarcastic utterances. Utterances were drawn from videotapes of participant interviews and arranged on a master tape for analysis. Utterances that were identified as sarcastic by speakers and recognized as sarcastic by listeners were randomly arranged with utterances identified and recognized as non-sarcastic by the same participants. Both sarcastic and non-sarcastic utterances were analyzed by two methods–acoustic analysis and perceptual coding. The acoustic analysis proved slightly more successful than the perceptual coding in discriminating between sarcastic and non-sarcastic utterances. The acoustic analysis indicated that fundamental frequency, frequency range, length of utterance, and total amount of sound significantly discriminated sarcastic from non-sarcastic utterances. The perceptual coding method revealed that pitch range, length of utterance, and total amount of sound significantly discriminated sarcastic from non-sarcastic utterances. Moderate correlations were found between the acoustic and perceptual variables.     

《管子》"时"观初探

"时"观念是理解中国古代思想的重要线索。在一定层面上讲,"时"观念的延展及其实践承载着传统农业社会的绵延。"时"在《管子》中是一个基础性的核心概念,贯通全文,它传承"时"的原发观念和本质特性,融入气、阴阳、五行思想,与道、德、法相通融,"时"作为论理基准,在"治国安邦"、"经世致用"中具有统领性意义。     

不同动机网络使用者对网络使用线索的注意偏向

以29名信息获取性动机者和21名人际情感性动机者为被试,采用情绪Stroop范式,以网络信息获取线索、网络情感满足线索、一般负性情绪线索和中性线索为刺激材料,考察了不同网络使用动机者对网络相关线索和负性情绪线索的注意加工特性。结果发现,基于信息获取性动机的网络使用者对网络信息获取线索具有显著的注意偏向,而基于人际情感性动机的网络使用者对网络情感满足线索或负性情绪线索具有显著的注意偏向。该研究为解释网络相关线索和负性情绪线索诱发不同动机者上网欲望的认知机制提供了实验证据。     

情感性动机网络使用者对负性情绪线索的前注意偏向

采用修改后的分离式Stroop任务,通过两个实验考察了基于人际情感性动机的网络使用者在双线索竞争条件下的前注意加工特性。研究结果表明,相对于信息获取型被试,在中性线索与负性情绪线索匹配条件下,人际情感型被试对负性情绪线索表现出显著的前注意加工偏向,但在中性线索和情感满足线索匹配条件下,该类被试对情感满足线索未表现出前注意加工偏向。该研究为解释人际情感型动机者的病理性网络使用行为的情绪机制提供了实验证据。     

Pandora: A Reasoning Toolbox using Natural Deduction Style

Pandora is a tool for supporting the learning of first ordernatural deduction. It includes a help window, an interactivecontext sensitive tutorial known as the "e-tutor" and facilitiesto save, reload and export to LATEX. Every attempt to applya natural deduction rule is met with either success or a helpfulerror message, providing the student with instant feedback.Detailed electronic logs of student usage are recorded for evaluationpurposes. This paper describes the basic functionality, thee-tutor, our experiences of using the tool in teaching and ourfuture plans.