数学焦虑对心算加工的影响

近20年来,研究者逐渐注意到心算加工会受到数学焦虑的影响。文章主要介绍了数学焦虑的涵义、测量及其对心算加工的影响和理论解释。数学焦虑对心算的影响与问题大小效应关系密切。数学焦虑对简单心算问题的影响不大,随着问题难度的增加,数学焦虑效应逐渐明显。此外,数学焦虑还影响着心算的编码、提取以及策略选择等过程。目前的研究多倾向证明加工效能理论,同时抑制理论也是个可选择的理论解释,只是尚缺乏验证研究     

不同教师群体激励因素的比较研究

本研究选择云南曲靖和浙江宁波的两所师范学校作为研究对象,以教育人种学研究方法为基本方法,通过现象分析、个案访谈、问卷调查、文献分析等途径,对不同地区教师群体的工作积极性状态及其原因进行了实证性对比研究,得出以下结论:竞争压力和相对报酬之间的相互关系是决定不同教师群体工作积极性大小的两个关键因素。其中竞争因素的激励功能相对较强。竞争压力大小与相对报酬高低之间的相互关系影响着群体激励力量的大小。     

似然性、必然性和恒等:一种相对似然性逻辑

We construct a Hilbert style system RPL for the notion of plausibility measure introduced by Halpern J, and we prove the soundness and completeness with respect to a neighborhood style semantics. Using the language of RPL, we demonstrate that it can define well-studied notions of necessity, conditionals and propositional identity. The paper is partially supported by a project (No. 05JJD720. 40001) granted by the Key Research Institutes for Humanities and Social Sciences of Chinese Ministry of Education.     

相对剥夺感与大学生网络过激行为:自我损耗的中介作用及性别差异

基于自我损耗理论和性别角色观念,以894名具有网络使用经验的大学生为被试,探讨相对剥夺感与大学生网络过激行为的关系及其作用机制。结果表明：（1）相对剥夺感能够显著正向预测大学生网络过激行为;（2）相对剥夺感通过自我损耗的中介作用预测网络过激行为;（3）性别调节该中介模型的前半路径和直接路径。具体来说,相对于女生,男生的相对剥夺感对自我损耗和网络过激行为的预测作用均更大。研究结论有助于揭示大学生网络过激行为的形成机制及个体差异,对大学生网络过激行为的干预具有参考价值。     

Elite golfers are characterized by psychomotor refinement in cognitive-motor processes

The present study extends the sport neuroscience literature by comparing elite and amateur golfers during golf putting and examining the essential cognitive-motor processes that may contribute to understanding the superior cognitive-motor performance of skilled performers. Twenty elite and 18 amateur golfers were recruited to perform 60 putts while individual EEGs were recorded. Compared with the amateur golfers, the elite golfers were characterized by (1) lower alpha 2 power at Pz and T8 2 s before putt release; (2) lower alpha 2 power at Fz and T8 and lower mu 2 power 1 s before putting; and (3) lower alpha 2 coherence at Fz–T7 and Fz–T8. This suggests that the elite golfers had higher levels of attention to response motor programming and visuospatial attention and less cognitive-motor interference before putting. These findings not only point to the importance of refining brain processes but also specify essential cognitive-motor processes for superior performance in athletes.     

On Modal Logics Characterized by Models with Relative Accessibility Relations: Part II

This work is divided in two papers (Part I and Part II). In Part I, we introduced the class of Rare-logics for which the set of terms indexing the modal operators are hierarchized in two levels: the set of Boolean terms and the set of terms built upon the set of Boolean terms. By investigating different algebraic properties satisfied by the models of the Rare-logics, reductions for decidability were established by faithfully translating the Rare-logics into more standard modal logics (some of them contain the universal modal operator).In Part II, we push forward the results from Part I. For Rare-logics with nominals (present at the level of formulae and at the level of modal expressions), we show that the constructions from Part I can be extended although it is technically more involved. We also characterize a class of standard modal logics for which the universal modal operator can be eliminated as far as satifiability is concerned. Although the previous results have a semantic flavour, we are also able to define proof systems for Rare-logics from existing proof systems for the corresponding standard modal logics. Last, but not least, decidability results for Rare-logics are established uniformly, in particular for information logics derived from rough set theory.Since this paper is the continuation of Part I, we do not recall here the definitions of Part I although we refer to them.     

Catholic Social Teaching,Economic Inequality,and American Society

The essay begins with an explanation of the underlying theological vision that supports Catholic social teaching's commitment to the centrality of the common good and the role of solidarity as both a virtue and a norm. The vision of humanity as one family and the church as a sacrament of unity is the foundation for a communitarian ethic that prizes inclusion, participation, and relative equality in the quest for a truly just society. An array of social science studies is then employed to show that economic inequality “bleeds” into other realms of public life to undermine fundamental commitments of American society, namely, equal opportunity and political democracy. The essay concludes that an understanding of Catholic social teaching promotes a critical perspective that is deeply at odds with ongoing trends in the U.S. economy.     

The effects of instruction and environmental demand on state anxiety,driving performance and autonomic activity: Are ego-threatening manipulations effective?

A small yet emerging body of research on the relationship between anxiety and driving suggests that higher levels of state anxiety may lead to more dangerous driving behaviours. The aim of the current research was to investigate the effects of increased state anxiety on driving behaviours within a simulated environment using instructional sets to manipulate anxiety levels. In Study One, whilst a set of safety-related instructions were able to increase state anxiety, this did not result in changes to driving behaviours. In Study Two, ego-threatening instructions were not able to successfully increase state anxiety. This has implications regarding instructional sets in research, including their task relevance and the necessity for a motivational incentive. However, when changes in anxiety were considered regardless of instruction group, Study Two found changes in SDLP and skin conductance levels related to state anxiety increases. As these effects were context specific, it is argued that some of these changes may be due to poorer processing efficiency, leading to suggestions about the types of behaviours that may need to be trained in potential therapies for those who show high state anxiety levels whilst driving.     

The Efficiency of Similarity-Focused Comparisons in Person Perception

ABSTRACT

Comparison processes are ubiquitous in person perception. Comparative thinking can follow two routes: People either search for similarities or for dissimilarities while comparing. Which of these two routes is more efficient? Previous research indicates that people could compare two geometrical figures faster if they focused on similarities rather than dissimilarities. I examine comparisons of people and measure the consumption of cognitive resources as indicator for efficiency. The results confirm an efficiency-advantage of similarity-focused comparisons for social stimuli.     

Relative versus absolute stimulus control in the temporal bisection task

When subjects learn to associate two sample durations with two comparison keys, do they learn to associate the keys with the short and long samples (relational hypothesis), or with the specific sample durations (absolute hypothesis)? We exposed 16 pigeons to an ABA design in which phases A and B corresponded to tasks using samples of 1 s and 4 s, or 4 s and 16 s. Across phases, we varied the mapping between the samples and the keys. For group Relative, short and long samples were always associated with the same keys (e.g., Phase A: ‘1s→ Left, 4s→ Right''; Phase B: ‘4s→ Left, 16s→ Right''); for group Absolute, the 4-s sample was associated always with the same key (e.g., Phase A: ‘1s→ Left, 4s→ Right''; Phase B: ‘16s→ Left, 4s→ Right’). If temporal control is relational, group Relative should learn the new task faster than group Absolute, but if temporal control is absolute, the opposite should occur. We compared the results with the predictions of the Learning-to-Time (LeT) model, which accounts for temporal discrimination in terms of absolute stimulus control and stimulus generalization. The acquisition curves of the two groups were generally consistent with LeT and therefore more consistent with the absolute than the relative hypothesis.