基于fNIRS的运动执行与运动想象脑激活模式比较

使用《运动想象问卷−修订版》筛选出的30名被试(男女各半), 采用功能性近红外光谱成像技术(fNIRS)监测被试在执行实际举哑铃(男生, 4磅和8磅; 女生, 2磅和4磅)任务和想象举同等重量哑铃任务时, 其大脑皮层氧合血红蛋白浓度的变化。结果发现：男女被试在运动执行与运动想象任务下都激活了主运动皮层; 且运动执行的大脑激活水平高于运动想象。在执行实际运动任务时, 运动强度显著影响大脑皮层血氧浓度的变化, 表现出左半球偏侧化优势; 在执行想象运动任务时, 运动强度没有影响大脑皮层血氧浓度的变化, 且无偏侧化现象。     

对未来思考的思考

未来思考是前瞻性思考,旨在解决人生发展任务。人类的未来思考有多种类型。从是否具有现实性上来看,可以把未来思考分为两种主要形式：期望和幻想。幻想抑制动机和行为,但是,如果对幻想和不利现实因素进行心理对照,幻想就可以转变成执行性意图,这是因为心理对照过程能够产生美好未来和当前现实的同时通达。我们还探讨了习惯于不同自我监控思维模式的人对待时间、失败的人格差异,并提出了进一步的研究方向。     

任务定势对自动语义激活过程调节作用的ERP研究

摘要：本研究致力于探讨自上而下的因素对自动加工的影响。选取的自上而下因素为任务定势,自动加工过程为自动语义激活过程。研究采用ERPs技术,中文词汇为刺激,利用掩蔽启动范式,采用反应时和N400为指标。实验任务有三个：对问号后出现的词进行生物/非生物的词汇分类判断;对圆圈后出现的词进行是否含上下结构的字的词汇结构判断;对带“*”的词进行真词/假词判断。研究发现先前完成的任务形成的任务定势会对随后的自动语义激活过程产生调节作用：在词汇分类判断任务后,掩蔽启动刺激对靶刺激产生启动效应。在词汇结构判断任务后,掩蔽启动刺激对靶刺激没产生显著的启动效应。     

Five models of players' rule behavior for game balance

Abstract We present a five-part model of players' rule behaviors in a multiplayer online game (utilization, emergence, usefulness, usefulness-balance, and balance-usefulness). The model was identified through a pilot study involving nine expert players. The model fitness was then verified in a main experiment involving eighteen regular players. Our results showed that the utilization (4 players) and emergence (4 players) models were most frequently used, followed by the balance-usefulness (3 players), usefulness (3 players), and usefulness-balance (2 players) models. The coding scheme for this research was built from video observations and a literature review. We suggest this model is applicable for the implementation of a human-like virtual character's artificial intelligence algorithm in the game editors and the server loader for quality assurance.     

Travelling backwards and forwards in time: culture and gender in the episodic specificity of past and future events

There is considerable evidence that, when recalling past events, Westerners exhibit greater episodic specificity than East Asians and women exhibit greater episodic specificity than men. Yet it is unknown whether the same cultural and gender differences are true for future events. In the present study 209 European American and Chinese young adults were asked to recall past personal events and imagine future personal events occurring in varied time periods (i.e., 1 week, 1 year, 10-15 years). Regardless of time period, European Americans consistently produced more specific details than Chinese for future events than they did for past events, and women produced more specific details than men for both past and future events. These findings provide additional support for the constructive-episodic-simulation hypothesis, and shed new light on the influence of culture and gender on episodic thinking.     

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。     

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。     

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.     

Differential item functioning of the Rosenberg Self‐Esteem Scale in the US and China: Measurement bias matters

Using an item‐response theory‐based approach (i.e. likelihood ratio test with an iterative procedure), we examined the equivalence of the Rosenberg Self‐Esteem Scale (RSES) in a sample of US and Chinese college students. Results from the differential item functioning (DIF) analysis showed that the RSES was not fully equivalent at the item level, as well as at the scale level. The two cultural groups did not use the scale comparably, with the US students showing more extreme responses than the Chinese students. Moreover, we evaluated the practical impact of DIF and found that cultural differences in average self‐esteem scores disappeared after the DIF was taken into account. In the present study, we discuss the implications of our findings for cross‐cultural research and provide suggestions for future studies using the RSES in China.     

变革型领导如何影响员工的工作结果：一个有中介的调节作用分析

本文通过对426名在职人员的调查,探讨了变革型领导对工作绩效与满意度的影响机制。最后采用SPSS 13.0和Lisrel 8.7 对数据进行多层级线性回归分析,并依据温忠麟等（2006）的统计步骤分析了有中介的调节作用,得到如下结果：（1）在控制了年龄、性别与任职年限之后,自我效能在变革型领导与工作绩效、工作满意度之间都起部分中介作用;（2）核心工作特征在变革型领导与工作绩效之间起调节作用,调节作用需要通过自我效能作为中介变量。文章最后讨论了本研究的理论和实践意义。