Influence of intensity on children’s sensitivity to happy, sad, and fearful facial expressions

Most previous studies investigating children’s ability to recognize facial expressions used only intense exemplars. Here we compared the sensitivity of 5-, 7-, and 10-year-olds with that of adults (n = 24 per age group) for less intense expressions of happiness, sadness, and fear. The developmental patterns differed across expressions. For happiness, by 5 years of age, children were as sensitive as adults even to low intensities. For sadness, by 5 years of age, children were as accurate as adults in judging that the face was expressive (i.e., not neutral), but even at 10 years of age, children were more likely to misjudge it as fearful. For fear, children’s thresholds were not adult-like until 10 years of age, and children often confused it with sadness at 5 years of age. For all expressions, including even happy expressions, 5- and 7-year-olds were less accurate than adults in judging which of two expressions was more intense. Together, the results indicate that there is slow development of accurate decoding of subtle facial expressions.     

Mapping across Domains Without Feedback: A Neural Network Model of Transfer of Implicit Knowledge

This paper shows how a neural network can model the way people who have acquired knowledge of an artificial grammar in one perceptual domain (e.g., sequences of tones differing in pitch) can apply the knowledge to a quite different perceptual domain (e.g., sequences of letters). It is shown that a version of the Simple Recurrent Network (SRN) can transfer its knowledge of artificial grammars across domains without feedback. The performance of the model is sensitive to at least some of the same variables that affect subjects' performance—for example, the model is responsive to both the grammaticality of test sequences and their similarity to training sequences, to the cover task used during training, and to whether training is on bigrams or larger sequences.     

Effects of serotonin receptor agonists and antagonists on offensive aggression in mice

The effects of serotonin receptor agonists 5-methoxytryptamine and quipazine, and antagonist mianserin on resident-intruder offensive aggression were investigated. Both agonists reduced aggression. The fact that 5-methoxytryptamine preferentially binds to 5-HT-1 receptors strongly suggest that the decreased aggression with S-methoxytryptamine was related to stimulation of an inhibitory 5-HT-1 receptor. It is also suggested that the reduction in aggression with quipazine was related to quipazine's preferential binding to the 5-HT-1 receptor. The 5-HT-2 receptor antagonist mianserin reduced aggression suggesting that 5-HT-2 receptor blockade is inhibitory for aggression. Thus, two serotonin classes of receptors may be differentially involved in offensive aggression.     

梦意识现象学初探——关于想象、梦与超越论现象学

文章试图运用"双重自我"的概念,结合想象现象对一般梦现象进行现象学上的考察,并期望借助考察的结论给清明之梦一个现象学的解释。在文章的最后,还将用梦作比喻,探讨它对超越论现象学的启示。     

跟踪操作业绩与人格特征的关系

本研究发现,跟踪作业的业绩与允许误差值之间有某种规律性的关系。因此,跟踪任务的操纵器设计应考虑最佳宽容度。本文还探讨了不同人格维度与跟踪作业业绩之间的关系。就单个人格维度而言,内倾者的跟踪作业业绩优于外倾者;较高精神质者优于较低精神质者。在神经质维度上表现出高神经质者作业业绩好于低神经质者的倾向。     

精神分裂症患者平稳追踪眼动特点的研究

本文就精神分裂症患者平稳追踪眼动的特点,从生理心理学的观点进行了探讨。记录用眼电位图加以表示。研究表明:1)本病患者的平稳追踪眼动,主要以正弦波畸变或缺失为主,标志着患者有严重的追踪眼动障碍。2)不同病期和临床表现的患者,追踪眼动异常无显著差异。3)困难的眼追踪,提示本病患者有明显的视觉认知障碍和某种程度的注意缺陷。文中并就本病的发生机制进行了一些探讨。4)药物对实验结果有一定影响,但并不能改变疾病本身某种固有的病理特征。     

智力与性格因素影响汉族和白族中小学生品德发展的研究

本研究通过对448名汉族和328名白族中小学生的智力因素、性格因素与其品德发展的相关分析和方差分析,证明：（1）智力因素是影响学生品德发展的一个重要因素;（2）性格因素与学生的品德发展具有广泛的相关,品德优良学生的性格素质显著优于品德中等和品德不良的学生。     

华生心理学特点探析

本文认为华生的心理学激情有余而严谨不足;既是革命的旗帜又成了批判的靶子;在哲学问题上存在着许多误区;是一个充满魅力而影响甚巨的体系。     

肌电和皮温生物反馈及其和自我训练结合控制考试焦虑有效性的比较研究

本文比较了肌电和皮温生物反馈以及反馈与自我训练结合等方法对改善考试焦虑的有效性。采用状态—特质焦虑问卷的状态焦虑分选择48名高考应届考生为实验受试。将这些受试随机分成6组,每组8人,分别为:1.肌电反馈加自我训练;2.单肌电反馈;3.皮温反馈加自我训练;4.单皮温反馈;5.假反馈和 6.延迟训练等组。训练前后分别测试了各位受试在故意制造的紧张气氛中完成测验作业时的肌电和皮温变化以及状态焦虑的水平。比较结果表明:1.生物反馈改善考试焦虑是有效的,皮温和肌电反馈有效性相当;2.生物反馈和自我训练结合效果似乎更佳;3.假反馈训练的效果虽然比不训练略好,但两者无明显的区别;4.初始状态焦虑程度越高,经训练,焦虑水平下降幅度也越大。     

"韩卢逐块"辨正

"韩卢逐块"是一个佛源成语,比喻不抓本质、要害,只关注表面的、非本质的方面.其定型经历了很长时期,早期多作"狂犬趁块"、"如狗逐块"等形式,"韩卢逐块"这个形式见于禅宗语录.亦可省作"逐块".