P3b反映基于相似性的图形类别归纳决策过程(309)

先前关于归纳推理的研究没有探讨过图形类别归纳任务中决策过程的事件相关电位(ERPs)特征。该研究采用图形材料,通过记录和分析图形类别归纳推理任务的结论评估阶段的脑电信号,探讨了不同类别条件下图形归纳推理决策过程的ERP特征。实验结果显示,推理决策过程中,当前提为一些狗具有某种属性特征时,结论一致类别(狗类及马类)比结论不一致类别下(椅子类)的归纳推理诱发了更大的P3b的波幅; 而结论一致类别下,类别内(狗类)比类别外(马类)推理诱发更大的后部脑区的P3b的波幅,反映了相似性对类别归纳的贡献。该研究为理解类别归纳过程的决策阶段的动态加工过程提供了神经电生理学证据。研究结果进一步支持了类别归纳的相似性理论模型。     

The influence of induced mood on music preference

The purpose of this study was to clarify the impact of different self-centered moods on music preference without listening to music. Participants’ affective state (sad vs. happy vs. neutral) were experimentally manipulated through the mood induction procedure, and then their preferences for music were ascertained through self-reports. To understand participants’ internal motivations for their choices, we also asked them to indicate how appropriate he/she felt it would be to select the different music types as well as why they made such choices. Results suggested that participants in a sad mood were inclined to listen to sad (and slow) music, those in a happy mood preferred to listen to happy (and fast) music, and those in a neutral mood did not consistently prefer to listen to neutral music. In addition, participants were averse to sad music when they were in a happy or neutral mood; while they showed no aversion to happy music when they were in a sad mood. In conclusion, individuals select valence-consistent music when they are in an autobiographical memory-induced mood state.     

压力对“蚁族”群体心理健康的影响:希望的调节作用

以广州市棠下、上社、岑村、赤沙等地340名"蚁族"(高校毕业生低收入聚居群体)为被试,采用成人希望特质量表(ADHS)、压力知觉量表(CPSS)、一般心理健康问卷(GHQ),考察了"蚁族"群体的希望水平,并分析了希望在压力和心理健康之间的调节作用。结果发现:①从整体上看,该群体的希望处于中等偏上水平。②压力对于心理健康水平有显著的负向影响;希望能够起到压力缓冲作用,调节压力与一般健康问题、忧郁情绪和自我肯定感之间的关系。③希望对心理健康的忧郁、自我肯定维度的调节作用大小不同,对于忧郁情绪的调节作用更大,而对自我肯定调节作用较小。     

几种场相依/场独立测量工具间的相关研究

镶嵌图形测验、框线测验和认知偏差任务是目前国际上常用的三种场相依/场独立的测量工具。该研究发现：1）在框线测验中,个体不受背景信息干扰的能力,与整合背景信息的能力存在显著正相关关系;2）执行镶嵌图形测验愈佳者,执行框线测验的绝对任务与相对任务也愈佳;3）但认知偏差任务与镶嵌图形测验以及框线测验均无相关关系。因此,个体在感知过程中对场的利用,与其在推理决策过程中对场的利用,很可能是两个独立的心理过程。此外,由于镶嵌图形测验与智商测验有相关,框线测验可能更适合于跨文化心理学中对场相依/场独立概念的测量。     

全球化中的伦理认同与伦理冲突

全球化不仅改变着世界各国经济、政治格局,而且在思想文化领域亦产生了深远影响。这种影响在伦理维度上以伦理认同与伦理冲突的矛盾现象凸显出来。面对全球化中伦理认同与伦理冲突并存的复杂态势,合理的战略选择应该是:理性审视和反思全球化中的伦理认同和伦理冲突,以生态价值观引导下的伦理多元主义应对全球化的文化挑战。     

Post-training intra-basolateral amygdala infusions of norepinephrine block sevoflurane-induced impairment of memory consolidation and activity-regulated cytoskeletal protein expression inhibition in rat hippocampus

Considerable evidence indicates that the noradrenergic system of the basolateral amygdala (BLA) participates in the consolidation of various types of emotionally arousing memories. We previously reported that administration of an anesthetic-dose of sevoflurane immediately after continuous multiple-trail inhibition avoidance (CMIA) training impaired memory consolidation. This experiment investigated whether posttraining noradrenergic activation of the BLA is sufficient to reverse the memory impairing effect of sevoflurane. Adult male Sprague-Dawley rats received bilateral injections of norepinephrine (NE 0.3, 1.0, or 3.0 μg/0.5 μl) or normal saline (NS 0.5 μl) immediately after training in a CMIA paradigm. Subsequently, the rats were exposed to sevoflurane (2% inspired) or air for 2h. Norepinephrine produced a dose-dependent enhancement of memory consolidation on a 24-h retention test. The highest dose of NE tested (3.0 μg/0.5 μl) blocked sevoflurane-induced impairment of memory consolidation and reversed the inhibitory effect of sevoflurane on activity-regulated cytoskeletal protein (Arc) expression in the hippocampus 2h after training. These findings provide evidence that the mechanism mediating the memory-impairing effect of sevoflurane involves a network interaction between the BLA noradrenergic system and modulation of Arc protein expression in the hippocampus.     

具身社会认知：认知心理学的生态学转向

具身社会认知是具身认知同社会认知对话的产物,这种对话从三个维度展开,即具身自我认知、具身人际认知、具身群体认知。本研究不仅论证了具身认知的视角提高了传统社会认知心理学的生态效度,而且从进化心理学、镜像神经元视角对具身社会认知的现象进行了探析。具身社会认知作为一种研究思潮,面临着许多挑战：(1)具身社会认知是对行为主义研究范式的回归;(2)具(体)身(体)是社会认知过程的一种附带现象。     

说谎者悖论及其相关悖论的一种解决

依本文之见,说谎者悖论以及某些与之相关的悖论之被导出源于对某些不合理的前提的接受;而这些前提之被接受又源于对＂是真的＂与＂是假的＂这两个词的关键语义特性缺乏认识。本文为决定这些语义特性的基础提供了说明;这一基础包含两个论点,第一,每一语句均有其含义;第二,每一语句陈说的字面内容是一个命题态度的内容,因而具有某种一般形式。借助于这一基础,本文为这两个词构造了一个不同于传统意义上的塔尔斯基式真理理论的意义理论以说明这些特性,并借助于该理论论证说谎者悖论及其某些相关悖论的导出没有根据。     

青少年学生大五人格与主观幸福感的关系研究

通过对379名初中、高中和大学生样本的测查,考察了青少年学生大五人格维度与主观幸福感的关系。结果表明,外倾性是正性情感和生活满意度稳定有力的预测指标、神经质是负性情感稳定有力的预测指标,严谨性与生活满意度具有明显正相关,这三个维度与主观幸福感各维度的关系与国外已有的结论一致;开放性、宜人性与主观幸福感各维度的关系并没有验证Costa和McCrae(1982,1991)的结论。     

中学生学习适应性状况的研究

本研究对广东省五所中学2816名初高中学生进行了学习适应性的问卷调查,结果表明(1)在学习期望和学习意志力分测验中学习适应性不良的检出率高于全国理论比率;(2)在学习动机、学习方法、学校环境、家庭环境以及学习期望上存在显著的性别差异;(3)在学习期望、学校环境、学习意志力分测验中高中生学习适应性不良的检出率显著高于初中生;(4)二类学校学生在各测验中的得分高于一类学校和三类学校,而且检出率低于一类学校和三类学校。