Acute exposure to stress improves performance in trace eyeblink conditioning and spatial learning tasks in healthy men

The present study investigated the effects of acute stress exposure on learning performance in humans using analogs of two paradigms frequently used in animals. Healthy male participants were exposed to the cold pressor test (CPT) procedure, i.e., insertion of the dominant hand into ice water for 60 sec. Following the CPT or the control procedure, participants completed a trace eyeblink conditioning task followed by a virtual navigation Morris water task (VNMWT). Hypothalamic-pituitary-adrenocortical (HPA) axis and sympathetic autonomic system (SAS) activity were assessed by measuring salivary cortisol, heart rate, and skin conductance at selected timepoints. Results revealed positive effects of stress on performance in both tasks. The stress group showed significantly more conditioned blinks than the control group during acquisition of trace eyeblink conditioning. The stress group also performed significantly better in the VNMWT than the control group, with the former showing significantly fewer failures to locate the hidden platform in the allotted time and smaller heading errors than the latter. Regression analyses revealed positive relationships between HPA axis and SAS activity during stress and eyeblink conditioning performance. Our results directly extend findings from animal studies and suggest potential physiological mechanisms underlying stress and learning.     

课间缓解学习疲劳的一项探索性研究

学习疲劳是影响学生心理健康和学习效率的重要因素。学生课间心理保健操是根据我国大、中、小学生的生理、心理特点,参考Jacobson的渐进放松技术编制而成的,一般在学生学习最疲劳的课间组织实施。经过8所大、中、小学921名被试的实验研究,结果显示:学生课间心理保健操对大、中、小学生都有作用,能够有效地缓解学生的学习疲劳,恢复认知水平,特别是注意水平;对男生和女生普遍适用。适合大面积推广。     

“中国逻辑”名称困难的辨析——“唯一的逻辑”引发的困惑与质疑

上世纪三十年代,金岳霖先生以欧洲传统演绎逻辑是唯一和普遍的逻辑学观念,对中国逻辑的研究提出了“中国逻辑”的名称能否成立的问题。否认逻辑与文化的联系,坚持逻辑的唯一性和欧洲传统演绎逻辑的唯一性与普遍性,这些是提出“中国逻辑”名称困难的依据。上述观点将会面对由逻辑学研究对象、逻辑学学科性质以及逻辑史所展示的事实所引发的诸多困惑与质疑。逻辑学的研究对象是逻辑思维。逻辑思维不是单纯的自然现象,而是属于人的精神世界。人的精神世界依附于人类的文化,即人的实践活动及其成果的总和。当人类文化呈现出多样性的统一状态时,包括逻辑思维在内的精神世界不仅有共性,也有由民族地域不同而显现的个性。在中国,先秦文化不同于古希腊文化,它的核心是伦理政治与社会人事,它的主要内容是伦理尺度与治国纲纪的构想、建立和实践,它的基本思维取向是现实的需要以及实践中的经验。以“类同”为依据进行“以类取,以类予”推演的“推类”,成为先秦时期逻辑思维中居主导地位的推理类型,同时也成为先秦逻辑学研究的主要内容。中国古代逻辑学是有别于欧洲传统演绎逻辑的。研究中国逻辑离不开对欧洲传统逻辑的借鉴,在这种借鉴研究中,应用比较法的关键有三：第一,被比较的诸对象都把与之相比较的对象视为平等的他者,而不是对立者或规范者;第二,在见其同异中,比较以见其相异乃更为重要。第三,对研究对象的异点给出制约因素的分析,就中国逻辑研究而言,就是“历史分析与文化诠释”。     

Using HLM to Explore the Effects of Perceptions of Learning Environments and Assessments on Students’ Test Performance

The study examines the role that perceptions or impressions of learning environments and assessments play in students’ performance on a large-scale standardized test. Hierarchical linear modeling (HLM) was used to test aspects of the Learning Errors and Formative Feedback model to determine how much variation in students’ performance was explained by students’ and school principals’ perceptions of learning environments and assessments. Results from sequential HLM testing indicated that students’ but not principals’ perceptions explained a significant, although modest, amount of the total variation in students’ test performance. These results suggest that when students perceive learning environments to be safe and valuable, and positive assessment activities to be taking place, they tend to perform better on standardized tests than when they perceive learning environments and assessment activities otherwise. These findings provide a rationale for investigating the variables that can help improve students’ perceptions in order to enhance their test performance.     

Interaction between color and attentional level in children’s conflict control

Cognitive Processing - Perception of color can affect cognition and behavior in humans. Although there has been increasing interest in the effect of red on cognitive performance in adults, little...     

后疫情时代：复工阶段不同阶层的社会情绪及压力因素

本研究考察新冠肺炎疫情复工阶段,不同阶层社会情绪和压力因素随时间的变化规律。基于三次问卷调查（NT1 = 1073; NT1 = 983; NT3 =1078）发现：（1）民众社会情绪均表现为积极情绪高于消极情绪,而且随时间推进社会情绪持续向好;（2）低阶层者的社会情绪始终比高阶层者更消极;（3）民众感知的安全压力随时间下降,而经济压力随时间没有显著变化;（4）低阶层者感知到更大的经济压力,高阶层者感知到更大的安全压力;（5）安全压力在社会阶层与积极情绪和消极情绪之间起显著的中介作用,经济压力在社会阶层与消极情绪之间起显著的中介作用。研究揭示了不同社会阶层在复工阶段存在社会情绪和压力来源的差异,为有针对性进行积极社会心态治理提供启示。     

未来工作自我清晰度对主动职业行为的影响——一个有调节的中介模型

基于主动性行为模型和生涯建构理论探讨未来工作自我清晰度对主动职业行为的影响机制。采用主动职业行为量表、未来工作自我清晰度量表、生涯适应力量表、同事支持量表对广深两地13所民营企业的195名员工进行调查分析。结果显示:(1)未来工作自我清晰度影响主动职业行为;(2)生涯适应力在其中起到部分中介作用;(3)同事支持在中介模型的前半路径起到调节作用。     

A piezoelectric gyroscope based on thickness-shear modes of an AlN bimorph with inclined c-axes

We propose a new structure for piezoelectric gyroscope application. It consists of a two-layered plate of AlN with inclined c-axes. Through a theoretical analysis, it is shown that when the plate is electrically driven into thickness-shear (TSh) vibration in one direction and is rotating about the plate normal, the rotation causes a TSh vibration in a perpendicular direction with an electrical output which can be used to measure the angular rate of the rotation. Since AlN can be made into thin film devices much smaller than conventional crystal acoustic wave devices, the proposed gyroscope can be made much smaller than existing piezoelectric gyroscopes. The structure can also work with other crystals of class 6mm such as ZnO and polarized ceramics.     

超越两种文化：第三种文化与变革中的当代心理学

心理学内部长期存在着科学文化与人文文化的对立与决裂,这一矛盾加剧了心理学的分裂趋势。第三种文化兴起后,既不赞同非此即彼的单一文化观,也不认可两种文化间存在着不可逾越的鸿沟,而是提出了“数据、理论、阐释”三位一体的“综合科学”概念和以“磁力”主题为中心的研究模式,积极倡导人文与科学文化的宽容、批判性反驳与合作精神,从而超越了传统意义上两种文化的观念束缚,有望为当代心理学的发展提供一种新的进路。     

193例戒毒者人格类型及其与自尊、社会支持和应对策略的关系

以193名戒毒者为被试,运用问卷法和对数线性模型调查和分析了戒毒者个人背景及其与戒毒行为的关系,通过聚类分析概括出戒毒者的三种人格类型,并探讨了不同人格类型戒毒者在自尊、社会支持、应对策略上的特点及其关系。结果表明：(1)中低教育程度与中低经济收入显著正相关;男性所估计的戒毒时间远远少于女性;吸毒时间越长,复吸的可能性越大。(2)外向冲动型戒毒者的自尊水平最高,其次是内向顺从者,身心障碍者的自尊水平显著低于外向冲动者。(3)身心障碍者对支持的主观体验和利用程度越高,所采取的面对策略越多;所获得的支持越多,越少采取屈服策略。而内向顺从者和外向冲动者对所获支持的满意程度越高,越少采取面对策略;对支持的利用程度越高,所采取的屈服策略越多。