Positive emotion modulates cognitive control: An event‐related potentials study

There is substantial evidence to indicate that negative emotion can modulate cognitive control processing. However, only a few studies have investigated this effect with positive emotion. Therefore, the present study explored the electrophysiological correlates of the impact of positive emotional stimuli on cognitive control, using event‐related potentials (ERPs). Sixteen healthy young adults completed a modified Simon task (Simon, 1969). Behavioral data indicated that reaction times were faster for positive emotional stimuli than for neutral emotional stimuli in the incongruent condition, but not in the congruent condition, which suggested that positive emotion expedited conflict resolution. The ERP data showed that two negative ERP components (N300–400 and N450–550) were associated with the positive emotional stimuli in the incongruent minus congruent condition. It is suggested that these components may respectively be related to the conflict monitoring (N300–400) and response selection (N450–550) stages of cognitive control processing. Overall, our results indicated that positive emotion could facilitate cognitive control processing. These results are in line with the neuropsychological theory, according to which, positive emotion could modulate cognitive control mediated by increased dopamine levels in frontal brain areas.     

Cognitive control in belief‐laden reasoning during conclusion processing: An ERP study

Belief bias is the tendency to accept conclusions that are compatible with existing beliefs more frequently than those that contradict beliefs. It is one of the most replicated behavioral findings in the reasoning literature. Recently, neuroimaging studies using functional magnetic resonance imaging (fMRI) and event‐related potentials (ERPs) have provided a new perspective and have demonstrated neural correlates of belief bias that have been viewed as supportive of dual‐process theories of belief bias. However, fMRI studies have tended to focus on conclusion processing, while ERPs studies have been concerned with the processing of premises. In the present research, the electrophysiological correlates of cognitive control were studied among 12 subjects using high‐density ERPs. The analysis was focused on the conclusion presentation phase and was limited to normatively sanctioned responses to valid–believable and valid–unbelievable problems. Results showed that when participants gave normatively sanctioned responses to problems where belief and logic conflicted, a more positive ERP deflection was elicited than for normatively sanctioned responses to nonconflict problems. This was observed from ?400 to ?200 ms prior to the correct response being given. The positive component is argued to be analogous to the late positive component (LPC) involved in cognitive control processes. This is consistent with the inhibition of empirically anomalous information when conclusions are unbelievable. These data are important in elucidating the neural correlates of belief bias by providing evidence for electrophysiological correlates of conflict resolution during conclusion processing. Moreover, they are supportive of dual‐process theories of belief bias that propose conflict detection and resolution processes as central to the explanation of belief bias.     

不同列队呈现方式下反馈对目击证人辨认自信心的影响

采用辨认后反馈范式研究不同队列呈现方式下反馈对目击证人辨认自信心的影响。结果发现：（1）所有辨认者中,反馈组被试自信心显著高于控制组被试的自信心;反馈方式与辨认选择的交互作用显著,辨认选择与列队呈现方式的交互作用显著;（2）积极辨认者中,反馈组被试的自信心显著高于控制组被试的自信心;正确辨认被试的自信心显著高于错误辨认被试的自信心。结果表明：目击辨认中存在辨认后反馈效应;积极辨认者中辨认自信心可以作为辨认准确性的一个参考指标。     

神经质人格迫选量表的开发及其抗作假效果研究

传统的迫选量表得分是自模式数据,最近提出的Thurstone IRT模型建构了被试对迫选量表反应的数学模型,能够更精确地度量被试的特质水平.研究自编了神经质人格迫选量表,与常用的测量神经质的Likert量表一起,在无压力、模拟应聘和实际应聘三种情境下进行施测.结果发现,迫选量表的实测数据能够较好地拟合Thurstone IRT模型,该模型估计的特质得分不具有自模式数据的性质,比传统计分更能够抵抗作假.无论采用哪种计分方式,迫选量表都比Likert量表更能够抵抗作假.     

First principles study of the temperature-dependent elastic properties of W

The temperature-dependent elastic constants of body-centred cubic (bcc) phase W are presented from first principles quasi-static approach. With the quasi-harmonic approximation model, the Hugoniot equation of state and temperature-dependence linear thermal expansion coefficient is successfully obtained. The adiabatic elastic constants show a normal behaviour with temperature: decrease with increasing temperature. Based on the obtained adiabatic elastic constants, the structural stability and polycrystalline aggregate properties including bulk modulus B, shear modulus G, and B/G ratio are analysed for bcc phase W. In addition, the sound velocities as a function of temperature for bcc phase W are predicted.     

斯特劳森的反怀疑论观点——从先验论证到自然主义

斯特劳森对关于外部世界和他人心灵的怀疑论的反驳通常被看作某种先验论证。B.斯特德(Barry Stroud)批评斯特劳森的先验论证建立在实证原则的基础上,不能成功反驳怀疑论。斯特劳森在《怀疑主义与自然主义》一书中对斯特德的批评作出了回应。他认为,描述的形而上学所坚持的是一种温和自然主义立场,它并不打算诉诸理性论证来反驳怀疑论,而仅仅满足于说明怀疑论的无效性。先验论证的主要工作不是为了反驳怀疑论,而是为了展示概念图式的主要结构性要素之间的内在关联,从而揭示描述形而上学的自然主义特征。     

Spatial Stroop interference occurs in the processing of radicals of ideogrammic compounds

In this study, we investigated whether the meanings of radicals are involved in reading ideogrammic compounds in a spatial Stroop task. We found spatial Stroop effects of similar size for the simple characters (“up”) and (“down”) and for the complex characters (“nervous”) and (“nervous”), which are ideogrammic compounds containing a radical or , in Experiments 1 and 2. In Experiment 3, the spatial Stroop effects were also similar for the simple characters (“east”) and (“west”) and for the complex characters (“state”) and (“spray”), which contain and as radicals. This outcome occurred regardless of whether the task was to identify the character (Exps. 1 and 3) or its location (Exp. 2). Thus, the spatial Stroop effect emerges in the processing of radicals just as it does for processing simple characters. This finding suggests that when reading ideogrammic compounds, (a) their radicals’ meanings can be processed and (b) ideogrammic compounds have little or no influence on their radicals’ semantic processing.     

中国父母教养方式与儿童学业成绩关系的元分析

应用元分析的方法探讨中国父母教养方式与儿童学业成绩之间的关系。通过文献检索,共有54篇文献、793个独立样本符合纳入标准(n=24630)。主效应检验发现,积极教养方式(情感温暖和理解)与学业成绩显著正相关,而消极教养方式(惩罚和严厉、过分干涉和过度保护、偏爱被试、拒绝和否认)与学业成绩显著负相关。调节效应检验发现,过分干涉和过度保护与学业成绩的关系受到父母角色的调节。除了过分干涉和过度保护,其他教养方式与学业成绩的关系均受到年龄阶段的调节。偏爱被试与学业成绩的关系受到学科的调节。情感温暖和理解、过分干涉和过度保护与学业成绩的关系受到年代的调节。上述结果表明,中国父母教养方式与儿童学业成绩之间的关系密切。同时,还要考虑父母角色、年龄阶段、学科以及年代在二者关系中的作用。     

Three-month-old infants attribute goals to a non-human agent

The present research examined whether 3-month-old infants, the youngest found so far to engage in goal-related reasoning about human agents, would also act as if they attribute goals to a novel non-human agent, a self-propelled box. In two experiments, the infants seemed to have interpreted the box’s actions as goal-directed after seeing the box approach object A as opposed to object B during familiarization. They thus acted as though they expected the box to maintain this goal and responded with increased attention when the box approached object B during test. In contrast, when object B was absent during familiarization and introduced afterwards, the infants’ responses were consistent with their having recognized that they had no information to predict which of the two objects the box should choose during test and therefore responded similarly when the box approached either object. However, if object B was absent during familiarization and object A was in different positions but the box persistently approached it, thus demonstrating equifinal variations in its actions, the infants again acted as though they attributed to the box a goal directed towards object A and expected the box to maintain this goal even when object B was introduced and hence responded with prolonged looking when the box failed to do so during test. These results are consistent with the notion that (a) infants as young as 3 months appear to attribute goals to both human and non-human agents, and (b) even young infants can use certain behavioral cues, e.g. equifinal variations in agents’ actions, to make inferences about agents’ goals.     

几何图形类比推理的ERP研究

该研究以几何图形作为实验材料,测定14名硕士研究生在完成两种类比推理任务（大小变化和颜色变化）和其基线任务时的事件相关电位（ERP）,探讨类比推理过程的脑内时程动态变化。研究发现,两种推理任务所诱发的波形基本一致,而推理任务与其基线任务之间的ERP波形存在显著差异,两种基线任务之间的ERP波形也存在显著差异;类比推理的加工过程是有阶段性的,即编码潍断、映射、得出结论,研究结果进一步支持了Sternberg的成分理论;推断和映射这两个类比推理所特有的加工阶段都有其对应的脑机制,图式推断阶段主要激活的是前额皮层和双侧的顶叶皮层,类比映射和调整阶段主要激活的是左半球的颞叶、额叶和中央顶。