Conditioned and unconditioned defensive burying in the rat

When rats first encountered a mouse-trap or a flashbulb in a chamber to which they had been habituated, they buried it with bedding material from the floor of the chamber, whereas rats previously habituated to the trap or the flashbulb did not. Conversely, rats did not bury a stationary, wire-wrapped wooden prod or a length of polyethylene tubing, even on first encounter. However, almost every rat struck by the trap, shocked by the prod, exposed to an airblast from the tube, or to a flash of the bulb, buried the respective source of aversive stimulation with the bedding material, even when a comparable control object was present during conditioning and testing. Thus, the phenomenon of defensive burying is not restricted to situations in which neutral objects serve as the source of painful electric shock. Rats seem to enter the experimental environment with an already established tendency to bury some objects (unconditioned defensive burying) but not others, and they readily learn to selectively bury an object that has been the source of any one of a variety of aversive stimuli (conditioned defensive burying).     

The effects of suggestion structure and hypnotic vs task-motivation instructions on response to hallucination suggestions

Hypnotic and task-motivated subjects were given both auditory and visual hallucination suggestions that were either Brief, Long, or provided an imaginary Context. The Long and Context suggestions were equated for length. Task-motivated subjects scored higher than hypnotic subjects on both auditory and visual hallucination suggestions. Suggestion-type (Brief, Long, Context) affected response to the auditory but not the visual suggestion. Hypnotic and task-motivated hallucinators were equally likely to describe their images as being transparent. Theoretical implications are discussed.     

Left hemisphere selectivity for processing duration in normal subjects

The role of the left cerebral hemisphere for the discrimination of duration was examined in a group of normal subjects. Two tasks were presented: the first required a reaction-time response to the offset of monaural pulse sequences varying in interpulse duration, and the second required the discrimination of small differences in durations, within a delayed-comparison paradigm. In each task a right-ear advantage was obtained when the durations were 50 msec or less. No ear advantage was obtained for the larger durations of 67 to 120 msec. Since the perceptual distinctiveness of phonemes may be provided by durations approximating 50 msec, the nature of the relationship between the left hemisphere's role in temporal processing and speech processing may be elaborated.     

对从HSK题库中计算机自动生成试卷稳定性的试验检验

由计算机从题库中自动生成的试卷能否保持难度的相对稳定？根据IRT进行的等值误差范围有多大？为了回答这些问题,本文以共同组等值作为标准,对基于IRT之上的共同题等值误差进行了试验检验。试验中,采取一定措施保证了考生的动机水平。结果显示,IRT等值的校正方向都是正确的。在4个分测验中有3个分测验的的等值校正效果较理想,1个分测验的等值校正效果不够理想。计算机自动生成的试卷与原有人工命制的试卷在得分方面比较一致,分数相关达到0.931,获得证书的情况也是比较一致的。     

汉字部件信息数据库的建立──部件和部件组合频率的统计分析

用ＦｏｘＢＡＳＥ语言统计了６７６３个基本汉字集合中的部件和部件组合的频度信息,建立了“部件数据库”和“部件组合数据库”。前者包含５６７个部件;后者包含汉字中实际存在的７５８３个两部件组合。统计结果表明部件和部件组合均呈偏态分布,绝大多数的频率很低。这两个数据库不仅可应用于研究汉字认知中整体和局部的关系、汉字的学习和记忆,而且也可供汉字学的定量研究、中文信息的计算机处理研究参考。     

Rereading sophistical arguments: A political intervention

This essay argues that Aristotle's categories of oratory are not as useful in judging the methods of Sophistical rhetoric as his presentation of time. The Sophistical argumentative method of making the weaker the stronger case is re-evaluated as a political practice. After showing this argument's relation to power and ideology, Aristotle's philosophy, which privileges a procedure of argument consistent with the politics of a polis-ideal rhetoric, is offered as reason for objecting to Sophistical rhetoric. The essay concludes that Sophistical rhetoric prefers the concept of possibility over Aristotelian actuality, and offers a need for an ideological space of radical, generative possibility in rhetorical theory.     

3~6岁汉语儿童语言能力与错误信念理解关系的元分析

本研究综合了来自中国大陆1581名3~6岁儿童的语言能力与错误信念关系的19个研究的数据, 通过元分析考查了二者相关的强度, 并分析了影响相关强度的因素, 包括所测量的语言能力及研究使用的错误信念任务的差异等。结果显示当控制了儿童的年龄后, 语言能力和错误信念之间存在中等强度的相关; 研究中所测查的语言能力的类型、使用的错误信念的测量任务的类型不会对语言能力和错误信念的关系强度产生影响。     

德与法有机结合--论和谐医患关系之建设

建设和谐的医患关系有赖于道德与法律的有机结合.既要发挥道德在法治建设中的作用,又要发挥法律在道德建设中的作用.在和谐的医患关系的建设中,道德与法律相互作用,但道德是统帅.     

小学生数学示例学习的信息加工过程实验研究

该研究试图让小学生通过示例学习的方式学习小数乘小数知识。口语报告分析及后测表明,小学四年级学生已具备示例学习的能力。实验还通过口语报告的个案分析,揭示示例学习的信息加工过程,并探讨了经过改进的口语报告分析法的应用问题。     

王弼易与伊川易之比较--关于《周易》的体例与原则

王弼在吸取<易传>乘、承、比、应、当位、中位等说的基础上,详细论述了<周易>的体例以及原则,进一步阐发了<易传>所蕴含的取义说、适时说,还提出了主爻说、初上不论位等说,确立了义理派解易的基本思想方法.尽管程颐在对<周易>体例的看法上基本上承袭王说,但亦有发展与创新之处.他在王氏"适时说"基础上强调<易>随时取义的观点,提出了中则正、乾坤卦变以及卦才说等,丰富了义理派解易的方法,增加了解释卦爻象和卦爻辞的灵活度.本文在论述以上观点时,还对前人之说提出了一些异议.