学校群体构成对流动儿童数学学业成就的影响:一项多水平分析

学校群体构成是影响儿童学业成就的重要环境变量,并对流动儿童具有不同于本地儿童的特殊效应。本研究数据来自"中国儿童青少年心理发育特征调查"项目建立的数据库,被试是我国发达地区32个区县141所学校的4960名2-6年级儿童,流动儿童所占比例为14.5%。结果发现:(1)无论流动儿童还是本地儿童,学校社会经济地位越高,儿童的数学学业成就越好;学校流动儿童比例对儿童的数学学业成就没有影响;(2)学校社会经济地位越高,短期流动儿童相对于本地儿童的数学学业劣势越大;(3)学校流动儿童比例越高,长期流动儿童相对于本地儿童的数学学业劣势越小。     

本族和异族面孔的视觉工作记忆容量:面孔特征的影响

采用延迟探测刺激匹配再认任务,考察面孔种族和内外部特征是否会影响面孔视觉工作记忆容量。被试先识记2或4张中国人或白人的真实面孔图片,一半有内部特征(眼睛、鼻子和嘴巴),另一半有内部和外部特征(脸型、发型),再进行面孔再认判断。采用Cowan’s K值的分析显示,我国被试对本族和异族面孔的视觉工作记忆容量没有差异,但面孔数量与特征多少会影响面孔工作记忆容量,表明对本族和异族面孔的视觉加工不同。     

数字加工的脑功能成像研究进展及其皮层定位

数字加工是人类最重要的认知功能之一。当前的脑功能成像研究有助于对数字加工与皮层之间的联系进行更精确的定位。基于对上世纪80年代来有关数字加工脑功能成像研究的主要成果的回顾,尤其是一些重要区域,如双侧顶叶与前额叶等在数字加工中的地位与作用,以及不同脑区之间的关系进行了探讨,并对一个广泛运用的数字加工神经机制模型进行了简要评述。在此基础上,对数字加工的皮层定位问题进行了简要的总结。     

儒家真精神——“时中”

儒家时中是中和世界观和中庸方法论的统一 ,时中的内涵实质在依时而中、与时俱进 ,儒家的时中观包涵着深刻的唯物辩证思想 ,包含着强烈的适应进取精神 ,蕴涵着鲜明的知识理性内容。时中是儒家的真精神 ,是中华民族的真精神 ,是今天实现中华民族伟大复兴的真精神。     

A virtual reality assessment and training system for unilateral neglect.

Patients with unilateral neglect have problems reporting, responding, or orienting to novel or meaningful stimuli that is presented to the side opposite to that of a brain lesion. This creates a serous problem in regards to daily living activities. However, the established methods for assessing and training of unilateral neglect patients have several deficits. Recently, virtual reality (VR) technologies have been used as an assessment and treatment tool for rehabilitation. Hence, this study designed a VR system to assess and train unilateral neglect patients. In addition, the suitability and feasibility of our VR system for unilateral neglect patients was verified.     

Neurofeedback training with virtual reality for inattention and impulsiveness.

In this research, the effectiveness of neurofeedback, along with virtual reality (VR), in reducing the level of inattention and impulsiveness was investigated. Twenty-eight male participants, aged 14-18, with social problems, took part in this study. They were separated into three groups: a control group, a VR group, and a non-VR group. The VR and non-VR groups underwent eight sessions of neurofeedback training over 2 weeks, while the control group just waited during the same period. The VR group used a head-mounted display (HMD) and a head tracker, which let them look around the virtual world. Conversely, the non-VR group used only a computer monitor with a fixed viewpoint. All participants performed a continuous performance task (CPT) before and after the complete training session. The results showed that both the VR and non-VR groups achieved better scores in the CPT after the training session, while the control group showed no significant difference. Compared with the other groups, the VR group presented a tendency to get better results, suggesting that immersive VR is applicable to neurofeedback for the rehabilitation of inattention and impulsiveness.     

Computer‐assisted learning for adults with profound multiple disabilities

Five adults with profound physical and intellectual disabilities were taught to respond to photographs of preferences embedded in Microsoft PowerPoint (Microsoft, 1997 ) presentations by operating microswitches that functioned as mouse clicks. Rate of responding was generally correlated with changes in types of presentation, although variability in rate was often high, and session durations were quite short. Two participants showed substantial increases in responding when fitted with switches that were easier to manipulate. This exploratory study demonstrates that people with extremely limited physical and cognitive abilities can be taught to operate switches that produce changes in visual arrays on a computer screen and sometimes differentially so. Implications for responding to photographic representations of preferences, rather than the tangible preferences themselves, are discussed. Copyright © 2004 John Wiley & Sons, Ltd.     

小学生应用题表征的类型和特点

以124名小学六年级学生为被试。采用应用题解决问卷考查了我国小学生应用题表征的类型和特点。结果表明小学生应用题的表征方式有复述内容、图式表征、图片表征、直译表征、语义结构分析等;成功解题者和不成功解题者对各种表征方式的使用次数上没有显着差异;成功解题者和不成功解题者在各种表征方式下的解题成绩有显着差异,成功解题者在图式表征、直译表征和语义结构分析表征下的成绩显着优于不成功解题者。     

不诚实行为的认知神经机制

说谎,作为人性的一方面,已经成为心理学、生物进化学、实验经济学等多学科的关注点。说谎会受到多种文化的谴责,说谎行为也是人们所不支持的。但是国外的研究发现,在普通人群中,不诚实行为也是普遍存在的,而且这种不诚实行为并没有影响被试诚实的自我概念。因此了解这种不诚实行为的发生、发展过程,对人们认识和识别不诚实行为,提高人际互动质量至关重要。本文从不诚实行为的发生、发展过程出发,重点介绍了不诚实行为的研究范式、认知神经机制和影响因素。并针对已有研究的不足:(1)实验结果的解释水平低;(2)变量操纵不严谨;(3)研究方法局限; 提出了可能的解决方案。     

Prosocial Attitudes toward Money from Terror Management Perspective: Death Transcendence through Spirituality

Based on Terror Management Theory (TMT), we suggest that spirituality and prosocial attitudes toward money have a similar defensive function in resisting existential anxiety. In mortality salient (MS) situations, both spirituality and prosocial money attitudes afford symbolic immortality by self-transcendent connections. In four studies, we found that activating death awareness weakened people’s subjective love of money (Study 1) and predicted increased spending willingness on prosocial rather than proself goals (Studies 2, 3, and 4). More importantly, MS effects on money attitudes were smaller when people’s trait spirituality was high (vs. low; Studies 1, 2, 3) and when people were primed to experience spirituality (vs. happiness control condition; Study 4). For low spirituality people, the association between MS and prosocial spending also depended on the capacity of money spending to contribute positively to one’s feelings of self-worth (Study 3). Theoretical implications and future directions are discussed.