How to Forget the Unforgettable? On Collective Trauma,Cultural Identity,and Mnemotechnologies

Nietzsche’s notion of “active forgetting” is employed to better understand the disruptive and destructive influence of collective trauma on cultural identity. Throughout the article genocide is taken as a cause of extreme trauma and used to illustrate this impact. Active forgetting in this context should not be confused with memories fading away; it is rather a positive and active force, a capacity which an individual, a society, or a culture needs to prosper. This notion provides guidance on how to banish the trauma to the extent that it ceases to paralyze the traumatized group. Technological skills that release negative emotions and ideas generated by the trauma from the collective memory—mnemotechnologies—are required to restore the capacity of forgetting.     

自我不确定感:内涵、结构和理论

自我不确定感是个体在遇到认知、情感以及行为间的不一致或冲突,对重要的心理品质产生困惑和怀疑时体验到的一致性和连续性缺乏的状态。文章对自我不确定感的概念进行了梳理,然后提出了概念构想模型,认为其结构应包含认知、情绪和动机成分,再后则以自我不确定感的管理策略为线索对相关理论和模型进行了初步整合。未来研究需在明确界定自我不确定感的基础上开展跨文化比较,从多角度检验自我不确定感管理策略的效果,深入探讨自我不确定感的发生和作用机制,探索如何变自我不确定感的被动防御为主动预防与管理。     

童年中后期儿童同伴接纳知觉准确性与偏差及其对社交退缩的影响

以小学三年级至六年级的儿童为被试,探讨同伴接纳知觉准确性的年级和性别差异,同时考察同伴接纳知觉准确性及偏差对社交退缩行为的预测作用。儿童完成同伴评定、知觉评定、社交自我知觉和班级戏剧量表。结果表明：（1）随着年级的升高,儿童的同伴接纳知觉越来越准确;儿童的同性同伴接纳知觉准确性不存在显著的性别差异;四年级男生的异性同伴接纳知觉准确性显著低于女生;（3）同伴接纳知觉准确性显著正向预测安静退缩和活跃退缩;同伴接纳知觉偏差显著负向预测安静退缩,但对活跃退缩不具有显著的预测效应。     

The effect of a non-steroidal anti-inflammatory drug on two important predictors for accidental falls: Postural balance and manual reaction time. A randomized, controlled pilot study

Accidental falls in older individuals are a major health and research topic. Increased reaction time and impaired postural balance have been determined as reliable predictors for those at risk of falling and are important functions of the central nervous system (CNS). An essential risk factor for falls is medication exposure. Amongst the medications related to accidental falls are the non-steroidal anti-inflammatory drugs (NSAIDs). About 1-10% of all users experience CNS side effects. These side effects, such as dizziness, headaches, drowsiness, mood alteration, and confusion, seem to be more common during treatment with indomethacin. Hence, it is possible that maintenance of (static) postural balance and swift reactions to stimuli are affected by exposure to NSAIDs, indomethacin in particular, consequently putting older individuals at a greater risk for accidental falls. The present study investigated the effect of a high indomethacin dose in healthy middle-aged individuals on two important predictors of falls: postural balance and reaction time. Twenty-two healthy middle-aged individuals (59.5 ± 4.7 years) participated in this double-blind, placebo-controlled, randomized crossover trial. Three measurements were conducted with a week interval each. A measurement consisted of postural balance as a single task and while concurrently performing a secondary cognitive task and reaction time tasks. For the first measurement indomethacin 75 mg (slow-release) or a visually identical placebo was randomly assigned. In total, five capsules were taken orally in the 2.5 days preceding assessment. The second measurement was without intervention, for the final one the first placebo group got indomethacin and vice versa. Repeated measures GLM revealed no significant differences between indomethacin, placebo, and baseline in any of the balance tasks. No differences in postural balance were found between the single and dual task conditions, or on the performance of the dual task itself. Similarly, no differences were found on the manual reaction time tasks. The present study showed that a high indomethacin dose does not negatively affect postural balance and manual reaction time in this healthy middle-aged population. Although the relatively small and young sample limits the direct ability to generalize the results to a population at risk of falling, the results indicate that indomethacin alone is not likely to increase fall risk, as far as this risk is related to abovementioned important functions of the CNS, and not affected by comorbidities.     

Dissociating Medial Temporal and Striatal Memory Systems With a Same/Different Matching Task: Evidence for Two Neural Systems in Human Recognition

The medial temporal lobe and striatum have both been implicated as brain substrates of memory and learning. Here, we show dissociation between these two memory systems using a same/different matching task, in which subjects judged whether four-letter strings were the same or different. Different RT was determined by the left-to-right location of the first letter different between the study and test string, consistent with a left-to-right comparison of the study and test strings, terminating when a difference was found. This comparison process results in same responses being slower than different responses. Nevertheless, same responses were faster than different responses. Same responses were associated with hippocampus activation. Different responses were associated with both caudate and hippocampus activation. These findings are consistent with the dual-system hypothesis of mammalian memory and extend the model to human visual recognition.     

Ignoring biased feedback: Membership in a stigmatized group as a moderator of mnemic neglect

A personal history of being the target of biased negative evaluation may lead individuals to habitually divert attention from negative feedback when it is possible to do so. Two studies tested for the first time the hypothesis that people belonging to a stigmatized group (Black students on a predominantly White campus) will, relative to non-stigmatized people, be more likely to engage in mnemic neglect—that is, they will reveal a greater tendency to insulate themselves from the effects of negative self-relevant feedback by means of motivated forgetting. The results of Study 1 supported that hypothesis. In Study 2, priming the concept of egalitarianism reduced the tendency of Black participants to engage in higher levels of mnemic neglect, consistent with the idea that the higher observed levels of mnemic neglect among stigmatized individuals derives from expecting biased, discriminatory responses from other people.     

生活应激诱发大学生抑郁症状及轻生意念预警模型

用“大学生人格问卷”(UPI)和“学生生活应激量表”(SLSI)检测大学生3558例,并用回归分析和路经分析探讨其应激过程(应激源—应激反应)诱发抑郁症状及轻生意念的预警模型。结果显示,大学生生活中所承受的挫折、压力、变化和自我强加是预警抑郁症状产生的主要应激源;情绪反应、生理反应、行为反应和认知反应是预警抑郁症状产生的主要应激反应;大学生抑郁症状诱发轻生意念的预测正确率为97.0%,发生比(OR)或危险率1.86倍于非抑郁症状者,其中女生抑郁症状诱发轻生意念的危险率近2倍于无此症状者;应激源直接引起应激反应,应激反应直接诱发抑郁症状,抑郁症状直接引发轻生意念,应激源和应激反应不直接影响轻生意念,而通过诱发抑郁症状间接影响轻生意念。此预警模型为大学生危机心理鉴别干预提供了临床心理学依据和参数。     

Sex Differences in Simple Visual Reaction Time: A Historical Meta-Analysis

To test the hypothesis that the magnitude of sex differences in simple visual reaction time (RT) has narrowed across time, a meta-analysis was conducted on 72 effect sizes derived from 21 studies (n=15,003) published over a 73-year period. The analysis provided strong evidence for the hypothesized change. In addition, the analysis indicated that the sex difference in RT was on average smaller with non-U.S. samples than with U.S. samples. No relation was found between the magnitude of the sex difference in RT and age or presence vs. absence of a warning signal. Two factors–-participation in fast-action sports and driving–-are proposed as having been responsible for the decrease in the magnitude of the sex differences in simple visual RT across time.     

Active control as evidence in favor of sense of ownership in the moving Virtual Hand Illusion

The sense of ownership, the feeling that our body belongs to ourselves, relies on multiple sources of sensory information. Among these sources, the contribution of visuomotor information is still debated. We tested the effect of active control in the sense of ownership in the moving Virtual Hand Illusion. Participants reported sense of ownership and sense of agency over a virtual arm in which we manipulated the morphological congruence of the hand and the visuomotor information. We found that congruent active control enhanced and maintained the reported sense of ownership over a hand that appeared detached from the body, but not in a morphological congruent limb. Also, incongruent active control, achieved by adding noise to the trajectory of the movement, decreased both reported sense of agency and ownership. Overall, our results are consistent with a framework in which active control acts as evidence for eliciting a sense of ownership.     

基于眼动研究的孤独症谱系障碍早期预测

孤独症谱系障碍是一组以社交困难为主要特征的神经发育障碍, 涵盖孤独症、阿斯伯格综合症及分类不明确的广泛型精神发育障碍。ASD预测研究集中在神经生理学、遗传学及心理学领域。在心理学研究中, 眼动技术的运用使得相关测量更为细微、精确, 测量过程更严谨, 预测关系更可信。现有的眼动预测主要着眼于注视时间、首视点和扫视反应时指标的研究。这些研究揭示注视面部和眼睛时间短、注视眼睛时间随年龄增长递减、注视追随时间短、注视重复物理性刺激时间长、视觉搜索优势及注意解除困难均可以预测ASD。未来研究应强化眼动特征预测作用的追踪性考证, 加大与其它发展障碍的预测区分, 控制视觉接受能力对眼动行为的影响, 建立综合性预测体系。