结合东巴文学习汉字对幼儿汉字字形记忆的影响

采用任务分离范式考察汉字学习的三种方式—只学习汉字、结合图画学习汉字、结合东巴文学习汉字对幼儿汉字字形记忆的影响。实验1采用再认任务考察学习方式对汉字字形外显记忆的影响, 分为学习、干扰、即时测试和延迟测试4个阶段。80名幼儿被分配进汉字组、东巴文组、东巴文-汉字组和图画-汉字组, 并接受统一的教学指导语。结果表明, 无论是即时测试还是延迟测试, 东巴文-汉字组的再认成绩均显著好于图画-汉字组和汉字组; 即时测试的再认成绩均好于延迟测试; 名词的再认成绩均好于动词。实验2采用偏好判断任务考察学习方式对汉字字形内隐记忆的影响。结果表明, 无论是即时测试 还是延时测试, 东巴文-汉字组的内隐启动量均显著大于其他各组; 即时测试与延迟测试的内隐启动量无显著差异; 名词的内隐启动量显著大于动词。整个研究表明, 东巴文对幼儿的汉字字形记忆具有明显的促进作用。所以如此, 既与东巴文的象形和表意性质有关, 也与东巴文与汉字的结构相似有关, 还与幼儿的认知特点有关。     

Predictors of picture naming speed.

We report the results of a large-scale picture naming experiment in which we evaluated the potential contribution of nine theoretically relevant factors to naming latencies. The experiment included a large number of items and a large sample of participants. In order to make this experiment as similar as possible to classic picture naming experiments, participants were familiarized with the materials during a training session. Speeded naming latencies were determined by a software key on the basis of the digital recording of the responses. The effects of various variables on these latencies were assessed with multiple regression techniques, using a repeated measures design. The interpretation of the observed effects is discussed in relation to previous studies and current views on lexical access during speech production.     

透析器复用的医学、经济与法制思考

回顾透析器复用的历史并分析其复用现状,医学原因和经济学原因是透析器复用的基础,复用存在的医学和法律相矛盾问题,并分析透析器复用的标准和效果评价.从医学、法律、社会三个方面分析透析嚣复用的前景,认为透析器复用有利于患者和减轻社会压力,但是存在医疗风险,透析器的"单用比复用好,而复用比不用好".     

Expanded norms for 400 experimental pictures in an Argentinean Spanish-speaking population

The study of the cognitive processes in the production of language demands careful selection of stimuli and requires normative databases. The main goal of the present research was to collect normative data for the set of 400 figures taken from Cycowicz, Friedman, Rothstein, and Snodgrass (1997; including the 260 figures of Snodgrass & Vanderwart, 1980) using a sample of native Argentinean Spanish speakers. The pictures have been standardized on the following variables: name agreement, image agreement, familiarity, visual complexity, image variability, age of acquisition, and word association. The obtained norms were compared with the normative data of other studies in Spanish, English, and French. This comparison highlights the variability of some of the measures (e.g., name agreement in naming and verbal association) across the different studies and confirms the necessity of elaborating specific norms that are adapted to the studied population’s linguistic and sociocultural context. The norms described may be downloaded as supplemental materials for this article from http://brm.psychonomic-journals.org/content/supplemental.     

共情的神经机制

共情是社会认知中不可或缺的一部分,是维系积极社会关系的社会动机因素。近年来,脑成像技术的发展为共情的神经机制研究开拓了新的视野,共情的神经机制研究取得了很大的进展。共情神经机制的研究主要包括共情的"表征共享"基础、共情的镜像神经元特征、共情调节的早期、晚期评价模型、共情的调节因素以及特殊个体的共情研究。在此基础上指出现有研究中存在的问题和未来研究的方向。     

Effects of memory load on visual search

It remains unclear how memory load affects attentional processes in visual search (VS). No effects, as well as beneficial and detrimental effects of memory load, have been found in this type of task. The main goal of the present research was to explore whether memory load has a modulating effect on VS by means of a different attentional set induced by the order of trials (mixed vs. blocked) and by the time presentation of visual display (long vs. short). In Experiment 1, we randomized the order of type of trial (5, 10 and 15 items presented in the display) while it remained constant (10 items) in Experiments 2A and 2B. In the later experiments, we also changed time presentation of visual display (3000 vs. 1300 ms, respectively). Results showed no differential effects of memory load in Experiments 1 and 2A, but they showed up in Experiment 2B: RTs were longer in the attentional task for trials under high memory load conditions. Although our hypothesis of the attentional set is supported by the results, other theoretical implications are also worth discussing in order to better understand how memory load may modulate attentional processes in VS.     

Relationship between productivity and efficiency in research funding for Spanish regions

Quality is a major current needs and requirements for any university system. The funding that universities receive a relevant influence on the scientific productivity of these. Thus the main objective of this study is to classify the Spanish regions in terms of scientific productivity and economic efficiency of their universities. It followed the same procedure used to prepare the 2009 ranking of research productivity in Spanish universities. The results show that there are differences in the classifications made on the basis of productivity and efficiency in the investigation. The more efficient Spanish regions in managing its resources to obtain research results are Catalonia, Asturias, Aragon, and Cantabria. From the results, each region can compare their situation with the rest and analyze strengths and weaknesses in research in terms of resources.     

羞怯与非羞怯大学生在早期面孔加工中的差异——来自ERP的电生理学证据

羞怯与社会认知密切相关,而面孔识别是人们社会生活中的一项重要的社会认知功能。目前关于羞怯的电生理学研究大多关注表情的效价效应和面孔的新旧效应对羞怯个体面孔加工的影响,却忽视了羞怯个体在基本的面孔识别能力——面孔-物体识别中可能存在的认知神经差异。因此,本研究采用ERP技术,使用GO/Nogo范式的面孔-物体识别任务,对17名羞怯大学生和17名非羞怯大学生在面孔结构编码中的N170成分进行考察,以期发现不同羞怯水平大学生在早期面孔加工中的认知神经差异。本研究发现,非羞怯大学生对面孔结构具有加工优势,识别面孔时,非羞怯大学生的N170波幅显著大于羞怯大学生的N170波幅,识别物体时则不存在组间差异;N170是面孔识别的特异性成分,面孔诱发的N170波幅显著大于物体诱发的N170波幅;识别面孔时,N170表现出大脑右半球的加工优势。     

Stressful life events and suicidal behaviour in countries with different development levels: Nicaragua,El Salvador,Chile and Spain

This paper presents a study conducted on 709 Latin American undergraduates from four countries with different development levels (Nicaragua, El Salvador, Chile and Spain). The intention of this paper is to value the differences in the number and characteristics of stressful life events (SLE) suffered by the participants. Another purpose is to confirm the relation between SLE and suicidal conduct in Spanish cultural contexts, through the study of a multicultural sample of Spanish‐speaking university students, and finally, to isolate the SLE that allow predicting a later suicidal conduct to a greatest extent. The information was collected by means of a self‐applied questionnaire. The results indicate a greater presence of SLE among those who live in countries with lower development levels and among those who have attempted committing suicide. It is observed that the fact of having suffered certain SLE—physical or sexual mistreatment, excessive alcohol or drug consumption and having left home during childhood or adolescence—aid in the prediction of later suicidal conducts in the studied samples. Copyright © 2010 John Wiley & Sons, Ltd.     

Executive functions underlying multiplicative reasoning: Problem type matters

We investigated the extent to which inhibition, updating, shifting, and mental-attentional capacity (M-capacity) contribute to children’s ability to solve multiplication word problems. A total of 155 children in Grades 3–6 (8- to 13-year-olds) completed a set of multiplication word problems at two levels of difficulty: one-step and multiple-step problems. They also received a reading comprehension test and a battery of inhibition, updating, shifting, and M-capacity measures. Structural equation modeling showed that updating mediated the relationship between multiplication performance (controlling for reading comprehension score) and latent attentional factors M-capacity and inhibition. Updating played a more important role in predicting performance on multiple-step problems than did age, whereas age and updating were equally important predictors on one-step problems. Shifting was not a significant predictor in either model. Implications of proposing executive function updating as a mediator between mathematical cognition and chronological age and attention resources are discussed.