鸟类神经系统的长时程增强

揭示学习与记忆的神经机制已成为认知科学领域的一个重要研究方向。研究过程中需根据不同实验目的选用不同实验动物。LTP（long-term potentiation）是一种研究学习记忆突触基础的主要模型,其代表突触功能的可塑性。以往对LTP的研究主要集中于哺乳动物,但由于鸟类在生物进化上具有独特的地位及特有的学习记忆能力,因此通过某些鸟类行为模型将有利于对LTP特性及其与学习记忆相关性进行更深入的探索。     

论元代道教戏剧对道教乐生思想的图解

对生命价值的充分肯定和对长生成仙的热烈追求是道教最具特色的教义.元代道教戏剧以独特的视角和艺术的手法对道教乐生思想进行了全方位地形象图解.面对成仙诱惑,凡人的怀疑、拒绝与诘问,正是因为对生的热切渴望对生命的价值强烈认同感使然.情欲乃是人之常情,道教贵生,当然包括对生命基本需求的尊重,对世俗情欲的眷恋与渴望是元代道教戏剧对道教乐生思想的又一诠释.元代道教戏剧着力展现体道之人对山水的乐好,而其乐山好水的审美情趣又与澄心遣欲的宗教追求和隐逸归真的宗教旨意一脉相承.本文以全新的角度阐释元代道教戏剧中体现出的道教乐生思想,以期在加深对道教生命意识的认识的同时,彰显元代道教戏剧独特的艺术价值.     

大学新生应对方式特点的研究

目的:探讨大学新生应对方式特点。方法:采用应对方式问卷对563名大学新生进行测量。结果:大学新生以使用成熟的应对方式(解决问题、求助)为主;在幻想因子上,性别和专业的主效应显著,女生得分比男生高,文科学生得分高于理科学生得分;在自责因子上,专业主效应显著,文科学生得分高于艺术体育类学生;在求助因子上,生源地的主效应显著,城市大学新生得分高于农村学生。结论:大学新生更多地使用成熟的应对方式;女生比男生更多地使用幻想的应对方式;文科学生比艺术体育类学生更多地使用自责的应对方式;文科学生比理科生更多地使用幻想的应对方式;农村学生比城市学生更少使用求助的应对方式。     

Body image, relationships, and time

The cultural standard of an impossible-to-attain ideal body image has been blamed for a plethora of psychological ills, from low self-esteem to eating disorders. In this study, the authors investigated the importance of current body image dissatisfaction compared with the ideal for married couples and for single people. The results indicated that although body image dissatisfaction exists in both married and single people, this discrepancy is of significantly less importance to married couples. The importance of long-lasting, satisfying relationships decreases the importance of body dissatisfaction and mitigates the impact of unrealistic ideal body image.     

The effect of text orientation, visual meridian, and inter-character spacing on word identification in the retinal periphery

Previous research has demonstrated that the masking effects of flankers about a target in the peripheral retina are not isotropic. Rather, regions of lateral interaction are ellipsoid in shape with the major axis oriented radially along a meridian through the fovea. This finding leads to the counterintuitive prediction that horizontal text positioned to the right of fixation might be read more slowly than similarly positioned text oriented diagonally or vertically. Similarly, vertically oriented text above fixation might be read more slowly than horizontally or diagonally oriented text above fixation. We investigated the effect of text orientation and inter-character spacing on word identification in the retinal periphery. Text was presented by rapid serial visual presentation. Words were centered 3 degrees from fixation along four visual field meridians (VM) (right horizontal, upper-right diagonal, vertical, and upper-left diagonal). Regardless of VM identification, performance was best for horizontal text, declining slightly for orientations between +60 degrees and -60 degrees and declining more quickly for acute orientations. A weak effect of VM was observed for text with normal inter-character spacing. Performance was best for text centered along the horizontal meridian and declined slightly along the other VM. Finally, identification rates increased by approximately 33 words min(-1) with the addition of one character space between adjacent letters. The word-recognition processes are very tolerant of text orientation, exhibiting a modest decline for orientations within +/- 60 of horizontal regardless of VM.     

Exchange through emoting: An emotional model of leader–member resource exchanges

Despite research suggesting that emotional interactions pervade daily resource exchanges between leaders and members, the leader–member exchange (LMX) literature has predominantly focused on the interplay between general affective experiences and the overall relationship quality. Drawing upon the affect theory of social exchange, we examine why and how discrete exchange imbalance engenders distinct emotions and shapes downstream work behaviors of the members. Results from a preregistered experimental study with 247 participants and an experience sampling study with time-lagged reports from 79 leaders and 145 members show that a positively imbalanced exchange increases members’ subsequent leader-directed helping via gratitude (but not via shame) and that a negatively imbalanced exchange increases members’ subsequent risk-taking via pride (but not via anger). Moreover, the intensity of such effects hinges upon the average level of resource contributions of leader–member dyads. Our research casts light on the role of transient emotions in dynamic resource exchanges between leaders and members and enriches our knowledge of within-dyad fluctuations of social exchanges.     

Auditory grouping based on fundamental frequency and formant peak frequency

The perceptual grouping of a four-tone cycle was studied as a function of differences in fundamental frequencies and the frequencies of spectral peaks. Each tone had a single formant and at least 13 harmonics. In Experiment 1 the formant was created by filtering a flat spectrum and in Experiment 2 by adding harmonics. Fundamental frequency was found to be capable of controlling grouping even when the spectra spanned exactly the same frequency range. Formant peak separation became more effective as the sharpness (amplitude of the peak relative to a spectral pedestal) increased. The effect of each type of acoustic difference depended on the task. Listeners could group the tones by either sort of difference but were also capable of resisting the disruptive effect of the other one. This was taken as evidence for the presence of a schema-based process of perceptual grouping and the relative weakness of primitive segregation.     

Are philosophers good intuition predictors?

Some philosophers have criticized experimental philosophy for being superfluous. Jackson (1998) implies that experimental philosophy studies are unnecessary. More recently, Dunaway, Edmunds, and Manley (2013) empirically demonstrate that experimental studies do not deliver surprising results, which is a pro tanto reason for foregoing conducting such studies. This paper gives theoretical and empirical considerations against the superfluity criticism. The questions concerning the surprisingness of experimental philosophy studies have not been properly disambiguated, and their metaphilosophical significance have not been properly assessed. Once the most relevant question is identified, a re-analysis of Dunaway and colleagues’ data actually undermines the superfluity criticism.     

双关图作为面孔刺激与非面孔刺激对大脑事件相关电位的影响

用线条描绘的图形作为刺激材料,A为老鼠,C为老头,B为双关图(ambi-guous figure)。图形按两种顺序:A→B→C(Ⅰ)和C←B→A(Ⅱ)向被试呈现,每次呈现时间100ms。被试按刺激呈现方式分成两组,每组20人。被试接受图形的同时记录事件相关电位(ERPs),B图呈现后要求被试报告观察内容。对主观报告考验,发现双关图在Ⅰ呈现方式中作为非面孔刺激(老鼠)被认知,在Ⅱ呈现方式中作为面孔刺激(老头)被认知。ERPs分析表明,双关图作为面孔刺激被识别时,T_3、Pz的P_2波潜伏期比双关图作为非面孔刺激被识别时分别延长6.09ms和7.39ms,波幅没有显著差异;双关图作为面孔刺激时T_3、T_4、Pz和Oz的P_3波的潜伏期比双关图作为非面孔刺激时延长约15ms;波幅没有显著差异。     

中学力学问题表征体系的动态特征

基于McDenott和Larkin的基本假设,该文提出了力学问题的表征体系,并用口语报告分析法实证研究了力学问题表征体系的动态特征。结果表明：问题解决者在解决力学问题过程中一般将建立4个不同层次的表征,并且在物理和数学表征层次所占时间显著多于在文字和朴素表征层次的时间。