Preliminary evaluation of an after-school resistance training program for improving physical fitness in middle school-age boys

Most after-school physical activity programs for youth focus on aerobic games and activities. The purpose of this study was to evaluate the efficacy of an after-school resistance training program on improving the physical fitness of middle school-age boys. 22 boys (M = 13.9 yr., SD = .4 yr.) participated in a periodized, multiple-set, 9-wk. (2x/week) resistance training program. All subjects were pre- and post-tested on their 10-repetition maximum squat, 10-repetition maximum bench press, vertical jump, medicine ball toss, flexibility, and also percentage of body fat and the progressive aerobic cardiovascular endurance run (PACER). Statistical analysis indicated that subjects significantly improved performance on the squat (19%), bench press (15%), flexibility (10%), vertical jump (5%), medicine ball toss (12%), and the PACER (36%). Although this design minus a control group limits interpretation, this after-school resistance-training program can improve muscular fitness and cardiovascular fitness in boys and should be replicated with appropriate experimental controls.     

Young Children Selectively Hide the Truth About Sensitive Topics

Starting in early childhood, children are socialized to be honest. However, they are also expected to avoid telling the truth in sensitive situations if doing so could be seen as inappropriate or impolite. Across two studies (total N = 358), the reasoning of 3- to 5-year-old children in such a scenario was investigated by manipulating whether the information in question would be helpful to the recipient. The studies used a reverse rouge paradigm, in which a confederate with a highly salient red mark on her nose asked children whether she looked okay prior to having her picture taken. In Study 1, children tended to tell the truth only if they were able to observe that the mark was temporary and the confederate did not know it was there. In Study 2, children tended to tell the truth only if they were able to observe that the mark could be concealed with makeup. These findings show that for children as young as age 3, decisions about whether to tell the truth are influenced by the likelihood that the information would be helpful to the recipient.     

藏传佛教经文典籍的木板雕刻工艺风采

论文就独具特色的藏传佛教经文典籍木板雕刻的主要题材、雕版形制、材质加工、雕刻工艺、印制技术;藏文典籍经书封版的形制、构图、纹样装饰内涵、雕刻工艺特色;及经文页面装帧设计的形式三部份作了较全面的论述.从中折射出了藏民族勤劳智慧的创造能力,多姿多彩、自成体系的文化传统魅力和博大精深.光照千秋的悠久历史文明风采.     

城市居民社区组织意识研究综述

社区组织意识是社区成员与社区组织在共同生活中形成的的精神联结,体现为对社区组织的认知、情感和行为意愿。文章对社区组织意识概念、状况和影响因素进行了论述,并提出社区组织意识研究存在的不足,及对未来研究的展望。     

Children's knowledge of deceptive gaze cues and its relation to their actual lying behavior

Eye gaze plays a pivotal role during communication. When interacting deceptively, it is commonly believed that the deceiver will break eye contact and look downward. We examined whether children’s gaze behavior when lying is consistent with this belief. In our study, 7- to 15-year-olds and adults answered questions truthfully (Truth questions) or untruthfully (Lie questions) or answered questions that required thinking (Think questions). Younger participants (7- and 9-year-olds) broke eye contact significantly more when lying compared with other conditions. Also, their averted gaze when lying differed significantly from their gaze display in other conditions. In contrast, older participants did not differ in their durations of eye contact or averted gaze across conditions. Participants’ knowledge about eye gaze and deception increased with age. This knowledge significantly predicted their actual gaze behavior when lying. These findings suggest that with increased age, participants became increasingly sophisticated in their use of display rule knowledge to conceal their deception.     

大学生的国家科技成就刻板印象

利用信号检测论的方法对130名大学生的国家科技成就刻板印象进行研究。结果发现,被试对中国近现代及当代科技成就判断标准的自然对数值显著高于对中国古代、美国近现代及当代科技成就判断标准的自然对数值(p<0.001),同时,被试对中国古代、美国近现代及当代科技成就的判断标准自然对数值没有显著差异(p>0.05),从而证明了大学生群体中明显存在着国家科技成就刻板印象。进一步的含义表明,大学生对中国古代科技成就依然保持绝对的自信,对中国近现代及当代科技成就的自卑并没有显著改变。在被试对2005年中国科技竞争力在全球的排名进行估计时,高估的人数显著多于低估的人数(p<0.001),从而表明,大学生对中国当前及未来科技成就的自信心开始建立。     

The other-race effect develops during infancy: evidence of perceptual narrowing

Experience plays a crucial role in the development of face processing. In the study reported here, we investigated how faces observed within the visual environment affect the development of the face-processing system during the 1st year of life. We assessed 3-, 6-, and 9-month-old Caucasian infants' ability to discriminate faces within their own racial group and within three other-race groups (African, Middle Eastern, and Chinese). The 3-month-old infants demonstrated recognition in all conditions, the 6-month-old infants were able to recognize Caucasian and Chinese faces only, and the 9-month-old infants' recognition was restricted to own-race faces. The pattern of preferences indicates that the other-race effect is emerging by 6 months of age and is present at 9 months of age. The findings suggest that facial input from the infant's visual environment is crucial for shaping the face-processing system early in infancy, resulting in differential recognition accuracy for faces of different races in adulthood.     

行动识别理论

本文介绍Vallacher和Wegner提出的“行动识别理论”。文章结合实验围绕人们行动识别的特点与原则、行动识别与行动的交互作用、决定行动识别水平的因素以及行动识别水平的个体差异和高水平行动识别者与低水平行动识别者的不同行动风格展开介绍。这些研究不仅有其对认知与行动之间关系作科学探索的理论价值,而且对人们更好地实现目标而进行日常行为管理也有着重要的启示意义。     

基于fMRI的自上而下字母加工神经机制的研究

人们在识别自己所熟悉的物体时, 不仅依赖于对输入信息的感知而且还会受到自上而下调节机制的影响。研究者基于功能磁共振成像(fMRI), 利用虚幻探测范式对自上而下字母加工的神经网络进行研究。该研究要求被试从纯噪声(实际没有任何字母)中探测字母。通过对fMRI数据进行心理生理交互效应分析, 发现当被试从纯噪声图片中“看”到字母时, 多个脑区的活动由于受到来自于右侧梭状回的影响而加强。该发现表明自上而下的字母加工网络不但包含负责字母形状和语音加工的脑区, 还涉及一些负责高级认知加工的区域。     

探寻中国人的多重互依自我：理论、挑战与整合

为了全面理解中国人的互依自我内涵,整理相关文献后,发现主要有华人本土与跨文化两种研究取向及相关的多种典型理论,如差序格局理论、华人四元自我理论、道德自我理论、三重自我理论和文化会聚自我理论。这些理论适合解释不同类型的互依自我,并面临各自的挑战。在意义维持模型下对这些理论及互依自我类型进行了整理,发现中国人的互依自我是多层次的、动态的。