干细胞研究中的多向立体思维方法

干细胞研究取得了里程碑式的进展,在临床疾病的预防和治疗中具有广阔的应用前景,这些研究成果凝聚了各国研究人员的集体智慧,多向立体思维方法得到了充分体现。     

学习考察德国紧急救援应急管理体系

德国的紧急救援应急体系结构合理,网络密集,分工明确,责任清晰,法制健全,管理先进,技术精良。特别是他们以人为本,尊重生命,未雨绸缪,防患于未然的理念;全民参与,平战结合,组织志愿者,从娃娃抓起的组织机构;合理分工,严谨、科学的态度更值得我们称道。为我们做好灾难应急救援工作提供了可以学习的经验和模式。     

坏念头，罪几何？意图信息的强弱变化对大学生道德判断的影响

成人在对他人的行为进行道德判断时,对意图和结果信息的利用存在不稳定的现象。Cushman提出道德判断双加工过程理论,认为当存在重大负性后果时,需要综合考虑意图和结果信息;而当不存在负性后果时,主要关注意图信息。本研究通过句式变化操控意图信息的明显性,分别考察了两组大学生在对道德情景进行判断时意图信息强弱变化所造成的影响,结果发现：（1）对中性行为进行道德判断时,突显负性意图信息后被试会增加道德谴责;（2）对负性行为进行道德判断时,道德谴责程度没有因意图信息明显性的改变而发生显著变化。此研究结果表明,在行为结果为中性时,人们主要利用意图的信息做出道德判断,但此时对负性意图的谴责程度并不稳定,容易受明显性变化的干扰。     

稷下学宫新证

稷下学宫诞生于地处东方的齐国,是战国时期学术交流和百家争鸣的主要阵地。作为具有划时代意义的重要机构,其成立与田氏代齐有着密不可分的关系。学界对稷下学宫尤其对于其确切地望的争论从未停止,从零星的文献记载出发,结合近年考古发掘和研究工作的新进展,本文认为稷下学宫位于大城西门外的系水两岸。对于该问题的讨论不能就此划上句号,考古学才是解决这一问题的唯一正确途径。稷下学宫作为齐国重要的政治文化遗产,历史进程中层累的集体记忆相互关联交织造就了独特的文化景观。     

论中国佛学的精神及其现实意义

中国佛学的精神是在佛教中国化过程中形成的,是外来佛教与儒道为主要代表的中国传统思想文化碰撞、冲突、交流、融合的产物,中国传统的儒道思想文化在中国佛学精神形成过程中发挥了重要作用。中国佛学的圆融精神、伦理精神、人文精神是中国佛学精神的主要方面。圆融精神是佛教调和其内部思想学说及其与中国传统思想文化关系的产物,对不同思想学说的调和、包容和融合态度以及圆融性的理论是其基本内涵;伦理精神融合吸收了与中国传统宗法社会相适应的儒家世俗伦理,具有宗教伦理与世俗伦理相结合的特征;人文精神融合吸收了中国传统文化关注现实社会人生的精神特质,从而使出世的宗教融入了更多的关注现实人心、人生、人间的思想内容。中国佛学的精神对于今天不同文化之间的交流融合、当代社会的道德伦理建设、佛教适应社会主义社会以更好地发挥自身的积极作用等均具有现实意义。     

受顺序影响的证真偏向:来自四卡问题新范式的证据

通过对经典四卡问题呈现方式的改进,逐一呈现与命题对应的检验证据,要求被试判断每一证据在命题检验中的作用。结果表明:(1)"证真偏向"依然存在,但从正确率来看,顺证真与顺证伪没有显著差异;(2)发现了显著的顺序效应,与逆向检验相比,顺向检验有更高的正确率与更短的反应时;(3)被试加工与命题"无关联"刺激时存在明显困难,其正确率显著较低。这些结果说明个体在判断不同证据对命题检验的作用时会受到命题内在方向性的影响,个体可能会采用一些固有推理图式以及简单的匹配策略解决问题。     

The failure to detect tactile change: A tactile analogue of visual change blindness

A large body of empirical research now shows that people are surprisingly poor at detecting significant changes in visually presented scenes. This phenomenon is known aschange blindness in vision. A similar phenomenon occurs in audition, but to date no such effect has been documented in touch. In the present study, we explored the ability of people to detect changes introduced between two consecutively presented vibrotactile patterns presented over the body surface. The patterns consisted of two or three vibrotactile stimuli presented for 200 msec. The position of one of the vibrotactile stimuli composing the display was repeatedly changed (alternating between two different positions) on 50% of the trials, but the same pattern was presented repeatedly on the remaining trials. Three conditions were investigated: No interval between the patterns, an empty interval between the patterns, and a masked interval between the patterns. Change detection was near perfect in the no-interval block. Performance deteriorated somewhat in the empty-interval block, but by far the worst change detection performance occurred in the masked-interval block. These results demonstrate that “change blindness” can also affect tactile perception.     

Deficits on the Continuous Performance Test within the schizophrenia spectrum and the mediating effects of family history of schizophrenia

Individuals with schizophrenia spectrum personality disorders (SSPD) and schizophrenia show similar cognitive impairments. The authors examined the contributions of SSPD symptoms and familial risk for schizophrenia to impairments on the Continuous Performance Test--Identical Pairs Version. Participants included 103 schizophrenia patients, 66 first-degree relatives (29 SSPD), and 103 community controls (26 SSPD) screened for family history of psychosis. Patients and SSPD relatives performed significantly worse than non-SSPD relatives and SSPD and non-SSPD community controls. No differences in performance were observed among non-SSPD relatives and SSPD and non-SSPD community controls. Results suggest a continuum in which risk for schizophrenia-related cognitive impairments is highest among patients and SSPD relatives, intermediate among non-SSPD relatives, and lowest among SSPD and non-SSPD community controls. Results suggest that SSPD in the absence of a family history of psychosis may be a phenocopy.     

Comparison of brain mechanisms underlying the processing of Chinese characters and pseudo-characters: an event-related potential study

Most Chinese characters are composed of a semantic radical on the left and a phonetic radical on the right. The semantic radical provides the semantic information; the phonetic radical provides information concerning the pronunciation of the whole character. The pseudo‐characters in the study consisted of different sub‐lexical parts of real Chinese characters and consequently they also had the semantic radical and the phonetic radical. But they were not readable and had no actual meaning. In order to investigate the spatiotemporal cortical activation patterns underlying the orthographic, phonological and semantic processing of Chinese characters, we used event‐related brain potentials (ERPs) to explore the processing of Chinese characters and pseudo‐characters when 14 healthy Chinese college students viewed the characters passively. Results showed that both Chinese characters and pseudo‐characters elicited an evident negative potential peaking around 120 ms (N120), which appeared to reflect initial orthographic distinction and evaluation. Then, Chinese pseudo‐characters elicited a more positive ERP deflection (P220) than did Chinese characters 200–250 ms after onset of the stimuli. It was similar to the recognition potential (RP) and might reflect the integration processes of phonological and semantic processing on the basis of early orthographic information. Dipole source analysis of the difference wave (pseudo‐characters minus characters) indicated that a generator localized in the left temporal‐occipital junction contributed to this effect, which was possibly related to phonological and perceptual–semantic information integration. Between 350–450 ms, a greater negativity (N360) in pseudo‐characters as compared to characters was found over midline fronto‐central scalp regions. Dipole analysis localized the generator of N360 in the right parahippocampal cortex. Therefore, the N360 might be an N400 component and reflect the higher‐level semantic activation on the basis of orthographic, phonological and perceptual–semantic processing.