论《金人铭》的产生时代

《金人铭》产生的时代应该是战国末年至汉代初年,这有以下几个方面的证据:1.《金人铭》的内容与黄老学派关系密切,应该是黄老思想流行后的产物,不可能产生于孔子时代。2.《金人铭》的内容性质与战国以前的青铜器铭文的特征不符。3.《金人铭》把孔子入周观书和孔子入太庙二事混合在一起,露出了破绽。4.《金人铭》称“三缄其口”,而“缄”字在可靠的先秦文献中无“闭口”义。“缄”的本义为捆箱箧的绳索,“缄”有“闭口”义是西汉才有的现象。     

听觉后见之明偏差的实验研究

后见之明偏差是一种人类认知自我中心。后见之明偏差的研究具有重大的理论价值和应用价值,尤其是其应用价值更不容低估。研究1采用回忆型和假定型研究范式考察听觉领域是否存在后见之明偏差;研究2采用回忆型研究范式,从需要角度考察奖励性动机对去除听觉后见之明偏差的作用。研究发现:听觉领域存在后见之明偏差;两种研究范式的后见之明偏差不存在差异;奖励性动机并不能消除听觉后见之明偏差。     

大学生学习拖延研究综述

学习拖延是指有目的地推迟必须完成的学习任务的行为。学习者的个性特质、角色冲突、自我调节能力不足以及学习任务特征,是导致大学生学习拖延的重要因素。当前对大学生学习拖延的测评主要采用自陈式量表,对学习拖延的干预主要采用认知-行为咨询法。强化实验研究、探讨综合性理论框架是该研究领域的重要发展方向。     

青少年网络成瘾人格特征研究

本研究采用问卷调查法,对某初级中学363名初中生的网络成瘾状况与人格特征进行研究。结论表明:初中生网络成瘾检出率为5.79%;初中生在网络成瘾存在性别差异,男生比女生更易成瘾。网络成瘾学生与非成瘾学生在《卡特尔十四种人格因素问题》中的忧虑性、自律性、适应性与焦虑性、孤独倾向、身体症状和冲动倾向等因子上差异显著。与非成瘾学生相比,成瘾学生的自制能力较差,成瘾学生可能更经常体验到孤独、焦虑和不满,并且在生活中较容易出现适应不良现象。     

数学文化与儿童数学认知

数学文化以文化为视角.在人类文化发展的历史过程中审视和理解数学,为我们认识和理解儿童数学认知开辟了全新的方向.作为数学文化的重要内容的数学信念、数学价值观、数学典故、数学符号、数学法则以及实物工具等,在儿童数学认知的知识提取、理解与表征、记忆与策略、认知风格、情绪态度以及自我效能等方面起着重要的影响作用.     

不同情境条件下幼儿交往策略的实验研究

本文采用实验研究的方法,研究了不同情境条件对幼儿交往策略的影响。结果表明:互动的、关系的、群体的情境,能显著影响幼儿交往活动中策略的运用。在比较简单的情境中,幼儿运用策略的水平较高,而在比较复杂的情境中,幼儿运用策略的水平较低。同时,无论处于何种情境,大年龄幼儿的总体水平比小年龄幼儿的总体水平高。     

儿童早期空间非标准测量能力发展研究进展

测量是数学的主题之一。空间非标准测量能力的发展对儿童数学认知能力的发展有重要作用,对儿童思维抽象性、逻辑性、创造性的培养,问题解决能力的提高有重要影响。文章通过对近四十年来儿童空间非标准测量能力发展研究的成果进行概括分析,发现研究者主要对儿童空间非标准测量的认知加工线索,长度测量策略与工具的使用,空间非标准测量知识的获得顺序以及相关的测量教学顺序,空间非标准测量能力与守恒和推理能力的关系等问题进行了研究。并在此基础上提出了儿童空间非标准测量能力发展研究需进一步探讨的问题。     

Expectancy and stimulus frequency: a comparative analysis in rats and humans.

We examined whether expectancy, one of several factors influencing attention, is similarly affected in rats and humans by manipulation of relative stimulus frequency. A two-choice reaction time (RT) task was developed for rats, and an analogous task was used for humans. Errors, RTs, discriminability, and response bias were measured. Both rats and humans shifted their response bias to the more frequent stimulus, with no change in overall discriminability. As stimulus probability or stimulus repetition increased, RTs and errors decreased. These results illustrate the similarity of expectancy in rats and humans. This two-choice RT task for rats can be used in future studies to examine the neuronal mechanisms of expectancy and attention.     

Manual discrimination of force using active finger motion.

In these experiments, two plates were grasped between the thumb and forefinger and squeezed together along a linear track. An electromechanical system presented a constant resistance force during the squeeze up to a predetermined location on the track, whereupon the force effectively went to infinity (simulating a wall) or to zero (simulating a cliff). The task of the subject was to discriminate between two alternative levels of the constant resistance force (a reference level and a reference-plus-increment level). Results of these experiments indicate a just noticeable difference of roughly 7% of the reference force using a one-interval paradigm with trial-by-trial feedback over the ranges 2.5 less than or equal to F0 less than or equal to 10.0 newtons, 5 less than or equal to D less than or equal to 30 mm, 45 less than or equal to S less than or equal to 125 mm, and 25 less than or equal to V less than or equal to 160 mm/sec, where F0 is the reference force, D is the distance squeezed, S is the initial fingerspan, and V is the mean velocity of the squeeze. These results, based on tests with 5 subjects, are consistent with a wide range of previous results, some of which are associated with other body surfaces and muscle systems and many of which were obtained with different psychophysical methods.