计算的脑机制研究进展

采用计算任务来探讨脑机制已成为国外研究大脑活动的重要领域。该文阐述了神经心理学和脑成像领域有关计算的脑机制研究。神经心理学及脑损伤的研究结果表明,大脑两侧顶下小叶和左前额叶与计算加工有关。ERP、PET和fMRI脑成像研究结果显示,数字命名与比较、心算、精算和估算等不同计算任务,其所激活的脑部位有所差异,但是大脑两侧顶下小叶和左前额叶可能是计算加工的主要脑部位。由于研究材料、方法和程序的不同,大脑皮层的广泛区域都有可能参与计算加工。     

试析联结主义范式对婴儿发展的解释

用联结主义范式作为解释婴儿发展的机制已成为当前认知发展研究的新趋势。本文以婴儿分类和客体永久性为范例,分析了这一范式在解释婴儿发展方面的理论潜力及不足。     

职业刻板印象及其影响因素研究

通过外显报告和内隐联想测验,发现在外显和内隐层面,大学生存在明显的职业刻板印象,对某些职业评价很高,有些则很低。工作岗位所在不同地域对大学生职业刻板印象产生较大影响,隐藏着加工机制的深层问题。研究结果表明,大学生就业观存在某种偏差。     

舌尖现象的研究进展

舌尖现象(thetip of tongue phenomenon,简称TOT)具有非常重要的研究价值,通过了解TOT的产生机制可以为我们理解言语产生等问题提供一个视窗,本文总结和回顾了国外有关TOT研究各方面的进展情况,并指出了当前研究存在的一些问题,目的是给国内的同行提供一点借鉴。     

敌意归因偏向对反应性攻击的预测及报复动机的中介作用

敌意归因偏向指将模糊情境中他人的行为意图进行敌意归因的倾向,其被认为是导致攻击的主要认知因素,但还缺乏其与反应性、主动性攻击的纵向关系的考察,而且其影响反应性攻击的动力机制也不清楚。本研究通过两个子研究来分别回应这两个问题。研究1的纵向调查结果显示,敌意归因偏向只纵向预测反应性攻击,而不能跨时间地预测主动性攻击。研究2对另一批大学生的横断面调查发现,报复动机可以中介敌意归因偏向与反应性攻击的关系。研究结果提示,敌意归因偏向很可能主要是在反应性攻击的形成中起到重要作用,而对主动性攻击的影响不大,报复动机则很可能是这种作用背后的动力机制之一。     

Accelerated lamellar disintegration in eutectoid steel

The fastest kinetics of lamellar disintegration (predicted duration of 44 min) in AISI 1080 steel is obtained with a novel approach of incomplete austenitisation-based cyclic heat treatment involving forced air cooling with an air flow rate of 8.7 m³ h^?1. A physical model for process kinetics is proposed that involves lamellar fragmentation, lamellar thickening, divorced eutectoid growth and generation of new lamellar faults in remaining cementite lamellae in each cycle. Lamellar fragmentation is accentuated with faster rate of cooling through generation of more intense lamellar faults; but divorced eutectoid growth is ceased. Accordingly, as compared to still air cooling, much faster kinetics of lamellar disintegration is obtained by forced air cooling together with the generation of much smaller submicroscopic cementite particles (containing more proportion of plate-shaped non-spheroids) in divorced eutectoid region.     

Questioning mechanism: Fénelon’s oblique Cartesianism

Cartesianism appeared inexorably to produce disparate theoretical tendencies inside itself, and Spinoza’s philosophy was one of the most outrageous and strangest result of those tendencies. This explains why so many Cartesians felt the urge to deal with the thought of the Dutch philosopher, from time to time labelled as ‘monism’, ‘pantheism’, or ‘atheism’. The case of Fénelon, the Quietist theologian, tutor of the Princes of France and brilliant Cartesian philosopher, highlights the difficulties of such an operation. The Archbishop of Cambrai devotes not only various letters to the criticism of Spinoza, but even a whole section of the Démonstration de l’existence de Dieu – his most ambitious work, from a theoretical point of view. For apparently no reason, the Réfutation du spinozisme was inserted in the middle of the second part of the Démonstration, the more specifically philosophical (and Cartesian) section. This paper aims to show how Fénelon actually wanted to criticize Descartes’ radical tendencies by attacking them where they were to be found inside Spinoza, without directly compromising Cartesianism – or, first and foremost, his own ‘apologetic’ Cartesianism.     

Implicit attitudes towards people with visible difference: findings from an Implicit Association Test

Research on implicit and explicit attitudes towards those with a visible difference has provided contradictory findings. While studies suggest explicit attitudes towards those with a visible difference are positive, implicit attitudes are likely to be negative. An Implicit Association Test measured attitudes towards visible differences in 129 adults finding no evidence of negative implicit attitudes. This contrasts with previous findings and accounts of those with a visible difference who report perceiving negative behaviours by the general public. Results are discussed in terms of what is known about perceiving faces that are different, as well as socio-cultural changes. These findings provide preliminary evidence that implicit attitudes towards visible difference are not negative, and that behaviour may be a result of uncertainty regarding how to behave.     

学习方式的变革:提取促进学习

提取练习效应是指在学习与最终测验之间,等长时间的提取练习与重复学习相比,前者更能促进长时记忆的保持,也称为测试效应。大量研究表明提取测试是一种高效的学习策略,师生却对此认识不足,认为测试只是检测学习效果的评估工具,并不能改变或促进学习。本文主要从提取练习促进学习的认知神经加工机制、提取练习在实践应用中的特点、提高提取练习效应的方法及其在教学实践中的局限四方面梳理了相关研究,为提取练习广泛应用于教学实践提供支持,同时也为师生正确高效利用这一策略提供了参考,使学生获得更高效和持久的学习。     

数形联觉——数字空间表征研究“新”取向

数字空间表征是人类对数字进行表征的重要方式。数形联觉（number-form synesthesia）是一种数字可以有意识地引起空间知觉的独特现象,与此类似的是非联觉者中广泛存在的无意识的心理数字线（mental number line）现象。两者在行为和脑机制上存在着很多重叠,也存在着值得思考的差异。数形联觉的研究能够提供实质性的行为和脑机制数据,用以解决数字空间表征研究中出现的问题,加强对于数字空间表征的理解;也为更加全面深入地开展进一步研究提供了新的启示,成为数字空间表征研究中值得推崇的新取向。