无决策成分的靶记忆与源记忆的加工深度比较

本研究通过两个实验来比较源记忆和靶记忆的难度。实验一比较两种记忆提取阶段的事件相关电位（ERPs）。实验二设置较高的成功标准,比较两者达标所需的时间,以此比较它们的难度。在实验一中,被试先进行项目记忆任务,接着进行源记忆任务（从两位虚拟人处接收项目,并记住项目的来源）和靶记忆任务（向两位虚拟人递送项目,并记住项目的去向）。源记忆和靶记忆的测试阶段要求被试再认项目的源或靶,并记录提取阶段的脑电。结果显示,虽然源记忆与靶记忆的正确率没有显著差异,但是在正确提取的ERP中观察到,两者与回想有关的LPC之间有边缘显著差异（靶记忆比源记忆更趋正向,且在顶区差异最明显）,这说明在回想上,靶记忆可能比源记忆需要更深的加工。实验二将源记忆和靶记忆结合在同一个任务中,要求被试反复尝试,直至两种记忆的正确率都达到较高的成功标准（近90%）。结果进一步证实,源记忆的加工水平深于源记忆。     

刺激持续时间对注意瞬脱影响的实验分离现象

通过三个实验,研究了注意瞬脱效应以便深入理解注意时间维度上的特性。实验一针对注意瞬脱效应（简称AB效应）和刺激持续显示时间（简称ED）之间的关系,发现SOA或者ED的延长能减小AB效应。实验二的结果再次证明ED的延长能减小AB效应,并且发现ED延长并没有伴随着对目标的加工速度的加快。实验三发现在目标与干扰项没有显著的特征差异时,AB效应随着ED延长而减小的现象消失了,即ED对AB效应的影响出现了实验性的分离。同时还证明突出显示可以通过加快对目标的反应速度来显著的减小AB效应,而且ED因素只有在目标具有突出的视觉特征时才能改变AB效应。     

Depressive Symptoms among Children with ODD: Contributions of Parent and Child Risk Factors in a Chinese Sample

Oppositional Defiant Disorder (ODD) is a developmental disorder characterized by serious and persistent social impairment, especially stressful interactions with parents. Although previous studies demonstrated associations between parent mental health and children’s ODD symptoms, less attention has been paid to integrating both parent and child risk factors. The purpose of the current study was to investigate the associations among parent emotion regulation, child emotion regulation, parental depression, and child depression in Chinese children with ODD. A total of 234 children with ODD ranging in age from 6 to 13 years, along with their fathers or mothers, completed questionnaires. Results indicated that: (1) Parent emotion regulation, parental depression and child emotion regulation were significantly correlated with children’s depressive symptoms. (2) Parent emotion regulation was related to children’s depression indirectly through parental depression and child emotion regulation. (3) Child emotion regulation fully mediated the relationship between parent emotion regulation and child depression, and also fully mediated the relationship between parental and child depression. These findings highlight the need to improve parent emotion regulation and pay attention to parental mental health, because both risk factors may exacerbate their children’s emotion regulation difficulties and further associate the high level of depressive symptoms among children with ODD.     

Masked translation priming effects with low proficient bilinguals

Non-cognate masked translation priming lexical decision studies with unbalanced bilinguals suggest that masked translation priming effects are asymmetric as a function of the translation direction (significant effects only in the dominant [L1] to nondominant [L2] language translation direction). However, in contrast to the predictions of most current accounts of masked translation priming effects, bidirectional effects have recently been reported with a group of low proficient bilinguals Duyck & Warlop 2009 (Experimental Psychology 56:173–179). In a series of masked translation priming lexical decision experiments we examined whether the same pattern of effects would emerge with late and low proficient Greek (L1)–Spanish (L2) bilinguals. Contrary to the results obtained by Duyck and Warlop, and in line with the results found in most studies in the masked priming literature, significant translation priming effects emerged only when the bilinguals performed the task with L1 primes and L2 targets. The existence of the masked translation priming asymmetry with low proficient bilinguals suggests that cross-linguistic automatic lexico-semantic links may be established very early in the process of L2 acquisition. These findings could help to define models of bilingualism that consider L2 proficiency level to be a determining factor.     

The appeal of vague financial forecasts

Prior findings suggest managers often choose ranges to communicate uncertainty in future earnings. We analyzed earnings forecasts over 11 years and find higher earnings uncertainty firms are more likely to choose range estimates. We study investors’ attitudes to forecast precision and argue investors’ evaluations of forecasts can be explained by a sequential non-compensatory two-stage process – First, investors determine whether a point or a range estimate is more appropriate for a particular domain based on the congruence principle. Then, they seek the most precise reasonable range to maximize informativeness. Results from three experiments indicate the preference for (im)precision is non-monotonic – it peaks for low levels of imprecision and diminishes when the range gets wider, and is consistent with participants’ desire for congruent and informative estimates, and supports the claim that investors favor forecasts that are as precise as warranted by the information available, but not more precise.     

经皮冠状动脉介入治疗(PCI)后无复流现象的综合解析

现已证明无复流现象的发生会明显降低经皮冠状动脉介入治疗(PCI)效果,影响患者近、远期预后.应用综合思维探讨无复流现象发生的机理、制定预防策略至关重要.     

可拓逻辑研究展望

可拓学是由我国学者自主创立的一门新学科,它研究以形式化的模型分析事物拓展的可能性和开拓创新的规律,形成解决矛盾问题的方法。中国科学院权威杂志《科学通报》在评论文章中指出:“可拓学是一门充满生命力的新学科,它的创立是中国人的骄傲,它不仅属于中国,更属于世界。”[1]经过30年的不断开拓,可拓学已经发展成为一门横跨哲学、数学与工程学的交叉学科,我们哲学界也可以积极对相关问题进行科学的研究和探索。本文拟从逻辑的角度谈谈可拓逻辑的研究设想,以期能够引起哲学界、逻辑学界对可拓学研究的关注。一可拓逻辑的研究价值人类的历史…     

明代"西天僧"考略

元末明初,来自“西天”迦湿弥罗的佛教僧人萨哈拶释哩在中国传法弘道十余年。他去世后,中国弟子智光宗承师说,发扬传承,从而在中国形成了一个具有鲜明印度密教特征的佛教教团,即“西天僧”。这个教团以北京地区为中心,与宫廷皇室及宦官有着十分密切的关系,地位尊崇。其宗教影响也进入到宫廷之中。     

社会判断的选择通达理论

比较是社会判断的核心过程。近期,Mussweile提出了选择通达理论模型,该模型区分了比较中两个基本的假设过程,整合了比较中的多种结果,为人们更好地理解判断的本质提供了一个新视角。本文主要介绍了选择通达的过程、结果及其存在的普遍性,并讨论了参照点运用和选择通达机制之间的区别和联系。     

国外外群体同质性效应研究述评

外群体同质性是刻板印象研究的一个特例,它是指人们倾向于认为外群体成员比内群体成员具有更加固定、刻板的特征,成员间具有更多的相似性和更少的变异性。目前国外外群体同质性效应研究具有以下几个特点:研究对象更为广泛;测量方法多样化;注重对机制的探讨;关注中介变量。