去甲肾上腺素对习得性长时程突触增强的影响

在大鼠条件性饮水反应的建立和巩固过程中,在每天训练之前,通过预先与记录电极一起埋植在海马齿状回的注药管,微量注射去甲肾上腺素(NE),观察其对海马齿状回的习得性长时程突触增强的影响。结果表明:NE能增强突触效应;训练作业前注NE易化了习得性长时程突触增强的形成,但对其巩固无影响;同时相应地易化了动物条件反应的建立。提示NE参与海马齿状回的习得性长时程增强的形成。本文对其可能的作用机制进行了讨论。     

焦虑症状的绘画评定研究

目的:利用回归分析探讨绘画测验对焦虑状态的评定作用。方法：对290名被试实施了房子-树-人绘画投射测验和Scl90焦虑分量表测验,结果：在所考察的11种绘画特征中,有5种对焦虑具有预测性。可以建立绘画特征对焦虑进行预测的回归方程,方程具有中等程度的解释水平。两名主试评价的Kappa一致性系数均达到较高水平。结论：可以通过绘画测验评定和预测焦虑,焦虑症状的绘画测验方法具有较好的评分者信度。     

Spatial context learning in visual search and change detection

Humans conduct visual search more efficiently when the same display is presented for a second time, showing learning of repeated spatial contexts. In this study, we investigate spatial context learning in two tasks: visual search and change detection. In both tasks, we ask whether subjects learn to associate the target with the entire spatial layout of a repeated display (configural learning) or with individual distractor locations (nonconfigural learning). We show that nonconfigural learning results from visual search tasks, but not from change detection tasks. Furthermore, a spatial layout acquired in visual search tasks does not enhance change detection on the same display, whereas a spatial layout acquired in change detection tasks moderately enhances visual search. We suggest that although spatial context learning occurs in multiple tasks, the content of learning is, in part, task specific.     

助推爱心：利用默认选项促进捐赠行为

本研究采用实验室和现场实验的方法检验了默认选项的助推策略是否能够促进慈善捐赠行为。结果发现：（1）相较于把被试费的“保留选项”设置为默认,把“捐献选项”设置为默认时,被试捐献的概率和金额更高;（2）在多个捐款选项情景中,默认选项的设置总体上提高了默认选项被选择的概率;将最大金额选项设置为默认选项有助于提高被试平均捐赠额。这些发现表明,应用默认选项的助推策略能够有效促进人们的捐赠行为。本研究结果对减少募捐成本、提高募捐效率有所启示。     

Quality of life assessment in Turkish patients with schizophrenia and their relatives

Quality of life of first-degree relatives living in the same household with patients having schizophrenia has not been sufficiently explored. 30 patients with schizophrenia (16 women, 14 men), diagnosed using DSM-IV criteria, 31 of their relatives (15 women, 16 men), and 34 control subjects (21 women, 13 men) were included in the study. The mean age of the patients, their relatives, and the control subects were 39.8 +/- 10.9, 58.1 +/- 12.5 and 37.3 +/- 17.0, respectively. The World Health Oranization Quality of Life-Brief Form was administered to all subjects. Quality of life was worse for the patient group than for their relatives and control subjects, but relatives of the patients and control subjects were not significantly different on Quality of life. Quality of life was negatively correlated with the severity of psychopathology and extrapyramidal side effects induced by antipsychotic drugs in the patients.     

判断杠是断定力的符号吗?——借助胡塞尔的“信念变异”学说澄清弗雷格逻辑学中的一个问题

弗雷格认为,句子的断定力真正展现了逻辑学所关心的"真"。并且与语词"真"的冗余论一致,他认为日常语言中缺少与断定力相应的符号。然而,弗雷格却似乎在他所发明的概念文字中为断定力指派了一个特殊的符号:判断杠。本文试图论证,尽管弗雷格直至学术生涯的最后阶段仍然坚持将判断杠保留在其逻辑语言系统之中,但概念文字中的这一设计并不符合他关于逻辑与真之关系的模糊洞见。在论证的关键一步中,我们将借助于胡塞尔关于"信念变异"的学说来澄清"判断"与"断定"之间被弗雷格所忽视的区别。在此基础上,我们最后将简要地提示出对弗雷格关于逻辑与真之关系的模糊洞见进行解读的方向。     

高校大学生人际敏感与社交焦虑相关因素分析

目的:分析比较大学生人际困扰、社交焦虑和心理症状的现状与影响,为大学生心理健康教育提供见解。方法:采用自制大学生压力源情况调查表,症状自评量表,社交回避及苦恼量表对大一、大二、大三共1291名大学生进行了测查。结果:人际关系困扰各年级总检出率为27.2%;大二和大三人际敏感因子均分高于大一,女生得分高于男生,并有显著差异;社交苦恼因子和总均分高于常模,存在差异显著性(P<0.05),总体社交回避及苦恼与抑郁、强迫、焦虑等心理症状有显著正相关,并有统计学意义。结论:人际困扰、人际敏感症状存在年级、性别差异,和典型表现形式;社交回避及苦恼可导致不同类型心理症状。     

成就目标、学业情绪及学业成绩的关系研究述评

成就目标(Achievement Goal)是个体对从事成就活动的目的或意义的知觉,学业情绪(Academic Emotion)是指与学业学习、班级指导和学业成就直接相关的各种情绪。成就目标与学业情绪相互作用,即成就目标会影响学生的学业情绪,学业情绪反过来也会影响成就目标。同时,成就目标和学业情绪对学生的学业成绩具有综合预测作用,学业情绪在成就目标和学业成绩间起中介作用。未来研究的方向主要在于深入探讨成就目标与更细分的学业情绪的关系,以及成就目标、学业情绪和成绩之间的相互作用。     

An image is worth a thousand words: why nouns tend to dominate verbs in early word learning

Nouns are generally easier to learn than verbs (e.g., Bornstein, 2005; Bornstein et al., 2004; Gentner, 1982; Maguire, Hirsh-Pasek, & Golinkoff, 2006). Yet, verbs appear in children's earliest vocabularies, creating a seeming paradox. This paper examines one hypothesis about the difference between noun and verb acquisition. Perhaps the advantage nouns have is not a function of grammatical form class but rather related to a word's imageability. Here, word imageability ratings and form class (nouns and verbs) were correlated with age of acquisition according to the MacArthur-Bates Communicative Development Inventory (CDI) (Fenson et al., 1994). CDI age of acquisition was negatively correlated with words' imageability ratings. Further, a word's imageability contributes to the variance of the word's age of acquisition above and beyond form class, suggesting that at the beginning of word learning, imageability might be a driving factor.     

经脐单孔免气腹腹腔镜阑尾切除术

总结经脐单孔免气腹腹腔镜行阑尾切除术的优势。对40例阑尾炎患者行经脐单孔免气腹腹腔镜阑尾切除术。结果手术均获成功,无中转开腹,所有手术患者均痊愈出院,无手术并发症及死亡。经脐单孔免气腹腹腔镜阑尾切除术能扩大腹腔镜阑尾切除术适应证,增加了手术的安全性。而且其良好的美容效果是传统腔镜手术不具备的。