儿童同伴信任和同伴接纳的关系:社会行为的中介效应及其性别差异

在金华市和杭州市两所市区普通小学, 选取366名3~6年级儿童为被试, 采用同伴互评、同伴提名法和班级戏剧问卷, 考察了社会行为在小学儿童同伴信任和同伴接纳间的中介效应及其性别差异。结果表明:(1)总体而言, 亲社会行为、退缩行为在儿童同伴信任和同伴接纳间存在显著的中介效应, 而攻击行为的中介效应不显著;(2)社会行为的中介效应存在性别差异。女生的同伴信任对亲社会行为的预测、亲社会行为对同伴接纳的预测作用都显著高于男生, 使得女生亲社会行为的中介效应大于男生。男女生的同伴信任对退缩行为的预测作用没有性别差异, 但是男生的退缩行为对同伴接纳的预测作用显著高于女生, 使得男生退缩行为的中介效应大于女生。     

The neural basis of insight problem solving: an event-related potential study

The electrophysiological correlates of successful insight problem solving (Chinese logogriphs) were studied in 18 healthy subjects using high-density event-related potentials (ERPs). A new experimental paradigm (learning-testing model) was adopted in order to make subjects find a solution on their own initiative rather than receive an answer passively. Results showed that Successful guessed logogriphs elicited a more positive ERP deflection (P200-600) than did Unsuccessful guessed logogriphs in the time window from 200 to 600 ms after onset of the stimuli. Subsequently Successful logogriphs elicited a more negative ERP deflection than did Unsuccessful logogriphs in the time windows of 1500-2000 ms (N1500-2000) and 2000-2500 ms (N2000-2500). Maps of the P200-600 showed strong activity in the midline parieto-occipital scalp regions. Dipole analysis localized the generator of P200-600 in the left superior temporal gyrus and parietotemporo-occipital cortex areas. The N1500-2000 and N2000-2500 had a distinct activation over left frontal scalp regions. Dipole analysis localized the generator of the N1500-2000 in the anterior cingulate cortex (ACC) and the N2000-2500 in the posterior cingulate cortex (PCC). This result indicates that the parietotemporo-occipital cortex areas might be involved in forming rich associations in the early stage of successful logogriph solving. Then, the ACC might play an important role in the breaking mental set and the forming of novel associations. At last, "Aha" feeling might activate the PCC.     

从知觉分心任务看儿童类比推理能力的发展

采用四类图片类比映射任务,考察了知觉分心对90名4岁、5岁、6岁儿童类比推理能力发展的影响,并进一步阐释影响儿童类比推理能力发展的可能机制。四类图片类比映射任务分别为一种关系无分心任务、一种关系有分心任务、两种关系无分心任务和两种关系有分心任务。结果表明：（1）在具备相应知识经验的前提下,知觉分心对儿童类比推理成绩有显著影响,儿童在无分心任务中的表现明显好于知觉分心任务的表现。在无分心条件下,4岁儿童已经开始能够选择关系匹配来正确完成类比推理。错误分析发现知觉分心任务中儿童所犯错误主要是分心错误,而且分心错误随年龄增长呈下降趋势。这表明对知觉分心的抑制控制可能是儿童类比推理能力发展的一个重要影响因素。（2）随着年龄增长,儿童类比推理能力逐渐提高。总体表现为6岁组的成绩显著优于4岁、5岁组的成绩,而4岁组的成绩与5岁组的成绩没有显著差异。5岁可能是儿童能够抑制知觉分心进行类比推理的快速发展期     

不同病期肿瘤患者的治疗选择

肿瘤从早期到晚期,需要选择不同的治疗手段来达到不同的治疗目的。从早期的根治性治疗到晚期的支持性治疗,随着肿瘤进展,抗肿瘤治疗强度从弱到强,到晚期又减弱。从能保证病人的生存质量到仅能减轻病人的癌性痛苦。这是肿瘤矛盾转化的必然结果,是抗肿瘤治疗的正确选择。     

If I'm not hot, are you hot or not? Physical attractiveness evaluations and dating preferences as a function of one's own attractiveness

Prior research has established that people's own physical attractiveness affects their selection of romantic partners. This article provides further support for this effect and also examines a different, yet related, question: When less attractive people accept less attractive dates, do they persuade themselves that the people they choose to date are more physically attractive than others perceive them to be? Our analysis of data from the popular Web site http://HOTorNOT.com suggests that this is not the case: Less attractive people do not delude themselves into thinking that their dates are more physically attractive than others perceive them to be. Furthermore, the results also show that males, compared with females, are less affected by their own attractiveness when choosing whom to date.     

与医学院实习生谈医患关系

阐述实习医师医患沟通的必要性,培养实习生正确的临床思维程序,规范操作技能。注意医患沟通技巧、言语和体语,建立良好医患关系。加深患者对医生的信任感,杜绝临床实习过程中各种医疗隐患。因而迫切需要解决的问题是如何加强实习医师沟通能力的培养,也是高等医学教育改革的重要课题。     

2404例农民工急诊医疗现状调查与对策研究

为调查进城农民工急诊医疗现状,对2404例急诊住院治疗的农民工进行项目的回顾性调查研究。其中青壮年占79．1％,低学历占86．5％,创伤占83．7％,自费占76．9％;同时,统计显示,医疗欠费逐年增高。目前急诊医疗问题比较复杂,医疗保障制度不完善,医疗卫生资源分配不公平。为了改变这种局面,应当完善农民工的医疗保障机制,从制度上解决农民工急诊医疗问题。     

信息加工效率与阅读的关系研究

对23名大学生进行知觉广度、记忆广度和阅读理解的多项测验,探求知觉、记忆加工效率与不同语言阅读成绩和阅读眼动特性之间的关系。结果发现：低水平的视觉符号方向信号知觉广度与阅读不存在明显的关系,从眼跳幅度指标上反映出右侧知觉广度大的被试对第二语言加工难度更为敏感。短时记忆和工作记忆能力对阅读的影响主要反映在眼跳幅度方面,与单个注视点获取的信息量有关,但与课文理解水平的关系不明显。短时记忆能力强的被试在眼跳幅度上以及第二语言言语工作记忆弱的被试在注视时间上均出现语言差异效应。     

流动儿童的人格特点对主观幸福感的影响

该文探讨大五人格、乐观和掌控感对流动儿童主观幸福感的影响。运用幸福感自我评定量表、积极情感／消极情感量表（PANAS）修订版、学生总体生活满意度量表（SLSS）、学生多维生活领域满意度量表（MSLSS）、人格五因素问卷、生活取向测验修订版和掌控感量表对1018名流动儿童和319名城市儿童进行调查。结果：1）流动儿童的总体幸福感为7、0,正性情感多于负性情感,总体生活满意度为2、9;2）在正性人格特征（外向性、宜人性、谨慎性、开放性乐观和掌控感）得分上：打工校流动儿童〈混合校流动儿童〈公立校城市儿童,在负性人格特征（情绪性）则相反;3）对主观幸福感的分层回归分析显示外向性、神经质、开放性、掌控感和乐观对主观幸福感有着稳定且显著的影响作用,其中人格五因素起着主要的预测作用。结论：流动儿童的主观幸福整体偏上,打工校流动儿童的人格健全状况最差,人格五因素对主观幸福感起着主要的影响作用。     

权力主体忠诚于权力客体:和谐社会的权力伦理基础

权利与权力之所以是法律的最重要现象,是宪政的最基本矛盾,是因为它们是构建社会秩序的核心要素.和谐社会诸要素关系的相互融洽必须以权力主体与权力客体的良性互动为根本.这种良性互动关系内生出权力的诸多道德诉求和伦理品质,其中一个重要的伦理维度就是权力主体忠诚于权力客体.