字谜与远距离联想解决中认知成分的比较

采用自发顿悟范式,通过事件相关电位(ERPs)探讨字谜和远距离联想（RAT）两类顿悟问题解决中的认知差异。结果发现,两类任务的正确反应时均在4000ms左右;解决两类任务的初期都在170ms时出现了正成分,且两类任务在此成分上没有显著差异;在600~700ms内,字谜比RAT诱发了一个更正的ERP成分,主要激活了中后部的脑区;在按键前的800~400ms内,字谜较RAT在右前额诱发了更正的脑电成分。结果表明,字谜顿悟和RAT顿悟存在相似的加工过程,但在重构阶段和啊哈体验上存在差异;两类任务在解决问题时重构过程的不同可能是造成情绪体验差异的原因     

A LORETA study of mental time travel: Similar and distinct electrophysiological correlates of re-experiencing past events and pre-experiencing future events

Previous studies exploring mental time travel paradigms with functional neuroimaging techniques have uncovered both common and distinct neural correlates of re-experiencing past events or pre-experiencing future events. A gap in the mental time travel literature exists, as paradigms have not explored the affective component of re-experiencing past episodic events; this study explored this sparsely researched area. The present study employed standardized low resolution electromagnetic tomography (sLORETA) to identify electrophysiological correlates of re-experience affect-laden and non-affective past events, as well as pre-experiencing a future anticipated event. Our results confirm previous research and are also novel in that we illustrate common and distinct electrophysiological correlates of re-experiencing affective episodic events. Furthermore, research from this experiment yields results outlining a pattern of activation in the frontal and temporal regions is correlated with the time frame of past or future events subjects imagined.     

初级运动区的fMRI实验研究

本实验采用功能磁共振为实验仪器,被试进行运动准备和运动执行两种作业活动,实验设计为延时序列运动任务。在对实验数据进行预处理,反卷积、标准化处理后,采用欧式距离公式进行聚类统计,统计结果显示,M1区不仅具有运动执行和运动准备的功能,还发现其他功能区域的激活,不是单纯的运动执行功能,这一区域与三种活动有关。     

上大学前、后生活事件与大学生心理健康的关系研究

本研究分析了大学生的心理健康特点以及生活事件对其的影响,结果表明：（1）SCL-90量表得分在心理健康的总体状况、焦虑、敌对、精神病性上存在年级与经济收入的交互作用,月均经济来源在200元以下的大学生,随着年级的升高,心理症状愈加严重;（2）影响大学生心理健康的生活事件均为负性生活事件,生活事件能解释大学生的心理健康总体水平变异量的30．1％;（3）上大学前后的生活事件在性质上的差异具有个体发展的阶段特点;（4）上大学后的生活事件对大学生的心理健康总体水平的影响约占27．4％,上大学前的生活事件的影响约占2．6％。     

What is Classical and Non-Classical Knowledge?

Mamardašvili’s ‘classical’ paradigm of knowledge is seen to be minimally based on extrapolations from Descartes’ classical philosophy to which Mamardašvili attributes features that rather anticipate his own post-classical ontology. The latter is oriented towards the primacy of perception as a subjective process, in which the self-conscious subject constructs the world, not as illusion, but as a ‘picture’ or ‘model’ (Wittgenstein’s Bild). By examining Mamardašvili’s definition of the ‘phenomenon’ against the␣background of Husserl’s ‘reduction’, Wittgenstein’s ‘object’ and the Freudian and post-structuralist psychoanalytic model of subjectivity, the paper arrives at the inference that Mamardašvili is essentially a post-Structuralist thinker who appropriates concepts from various critical and philosophical disciplines to construct his own multi-disciplinary theory of consciousness and perception.     

哲学性向、生活事件与精神信仰关系的研究

该文从实证的角度,探讨哲学性向、生活事件与精神信仰的关系。研究表明:1)哲学性向对宗教、神灵、金钱、家族崇拜起负向作用;对政治、国家和民族主义起正向作用。2)生活事件对神灵、生命和家庭起负向预测作用;生活事件通过与哲学性向的交互作用对民族信仰起预测作用。     

友谊的结构研究——一项对大学生友谊内隐观的调查研究

本文对大学生友谊概念的表征进行了初步的探究。研究者依据激活扩散模型,采用字词联想法来搜集数据。采用“友谊”一词为刺激,让269名大学生被试进行自由联想,选出前80个联想频率在4.0%以上的高频词语(概念)作为分析单位,做成卡片另请100名大学生进行分类,然后根据它们之间的关系亲疏程度实施系统聚类分析。结果发现,友谊概念在大学生群体的心目中是从以下4个方面来表征的:①关心与支持;②分享与交流;③共同活动与联系;④矛盾及冲突。     

Impulsivity and Behavior-Dependent Life Events Mediate the Relationship of Reward Sensitivity and Depression,but Not Hypomania,Among at-Risk Adolescents

Both reward sensitivity and impulsivity are related to the development and course of bipolar spectrum disorders (BSDs) and have been implicated in other disorders and negative functional outcomes such as substance abuse, obesity, suicidal behaviors, and risk-taking. Furthermore, according to the transactional component of the Behavioral Approach System (BAS)/reward hypersensitivity theory of BSDs, people with reward hypersensitivity should experience more BAS-relevant events, and thus, are more vulnerable to mood symptoms and episodes via stress generation. Impulsivity may exacerbate stress generation in individuals at risk for BSDs based on exhibiting reward hypersensitivity. The current study examined whether impulsivity explained the generation of stress and subsequent mood symptoms beyond what is explained by reward sensitivity alone. Participants were 131 Moderate BAS and 216 High BAS sensitivity adolescents (M = 18.43 years, SD = 1.40), who completed baseline measures of reward sensitivity and impulsivity, as well as follow-up measures of life events and mood symptoms. Results from linear regression analyses indicated that higher baseline impulsivity predicted behavior-dependent, but not behavior-independent, life events. Furthermore, path analyses suggested that the effect of BAS group on depression symptoms at next follow-up was partly explained via the indirect effect of impulsivity and negative behavior-dependent life events. We did not find these effects for behavior-independent or positive-dependent events or for prediction of hypomanic symptoms. The findings suggest that impulsivity may account for stress generation of negative events that precede depression.     

A cluster analysis of text message users based on their demand for text messaging: A behavioral economic approach

The goal of this study was to determine whether cluster analysis could be used to identify distinct subgroups of text message users based on behavioral economic indices of demand for text messaging. Cluster analysis is an analytic technique that attempts to categorize cases based on similarities across selected variables. Participants completed a questionnaire about mobile phone usage and a hypothetical texting demand task in which they indicated their likelihood of paying an extra charge to continue to send text messages. A hierarchical cluster analysis was conducted on behavioral economic indices, such as demand intensity, demand elasticity, breakpoint, and the maximum expenditure. With the cluster analysis, we identified 3 subgroups of text message users. The groups were characterized by (a) high intensity and low elasticity, (b) high intensity and medium elasticity, and (c) low intensity and high elasticity. In a demonstration of convergent validity, there were statistically significant and conceptually meaningful differences across the subgroups in various measures of mobile phone use and text messaging. Cluster analysis is a useful tool for identifying and profiling distinct, practically meaningful groups based on behavioral indices and could provide a framework for targeting interventions more efficiently.     

情绪对不同外倾水平个体行为抑制的影响

采用双选择oddball实验范式与事件相关电位（ERP）技术,探讨了情绪对行为抑制的影响以及外倾性的调节作用。行为数据发现,相比标准刺激,被试对偏差刺激的反应时显著更慢,证明实验成功诱发了行为抑制效应。在内倾组,负性刺激下偏差与标准刺激反应时差值显著长于正性刺激条件,而在外倾组无显著差异。脑电数据发现,在N2成分上,内倾组在正性情绪下的波幅显著小于负性和中性情绪,而在外倾组,不同情绪下的波幅不存在显著差异。在P3成分上,内倾组在正性情绪下的波幅显著大于负性和中性情绪,相反,外倾组在负性情绪下的波幅显著大于正性和中性情绪。结果表明,情绪对行为抑制的影响受到了个体外倾性水平的调节。