Altered working memory capacity for social threat words in high versus low social anxiety

ABSTRACT

Background and objectives: Differences in working memory capacity (WMC) have been suggested in individuals with high levels of social anxiety (SA). Specifically, these individuals may preferentially maintain socially threatening material in working memory.

Design and methods: We adapted the digit span task to a series of word span tasks. We assessed WMC for lists of words that varied in terms of their threat-relatedness, in individuals either high or low in SA.

Results: Experiment 1 revealed reduced WMC for socially threatening words in those with high compared to low SA. Importantly, this relative reduction in WMC was driven by the low SA group showing expanded capacity for socially threatening words relative to neutral or generally threatening words. Furthermore, reductions in WMC for social threat were uniquely predicted by SA, and not by other theoretically related constructs such as state general anxiety, trait general anxiety, or depression. Experiment 2 showed that the semantic similarity of the words within each list was not responsible for the differences in WMC between list type or SA group.

Conclusions: Our findings suggest that individuals high in SA may fail to upregulate WMC for social information due to the activation of, or rumination upon, socially threatening concepts.     

义符的类别一致性和家族大小影响形声字的语义加工

采用行为实验和眼动技术考察义符的类别一致性和家族大小对形声字语义加工的影响。结果发现：(1) 在一致性判断和视觉选择中均存在着字词水平的类别一致性效应, 义符同整字类别一致的字容易认知。(2) 义符的家族大小影响形声字的语义加工, 义符家族大, 汉语母语者对形声字的加工更容易采用形旁推理策略。(3) 义符家族的类别一致性影响形声字的语义加工。(4) 义符家族的类别一致性和家族大小效应受义符与整字的类别一致性调节。     

Argentines’ collective memories of the military Junta of 1976: differences and similarities across generations and ideology

Although memories about a nation's past usually are semantic in nature, a distinction needs to be made between lived and distant semantic collective memories. The former refers to memories of community-relevant events occurring during the lifetime of the rememberer, whereas the latter to memories of distant events. Does the content of lived and distant semantic collective memories differ? Employing both free and cued recall, we examined the memories of younger and older Argentines of the Military Junta of 1976. We also examined the effects of political ideology. Content analysis indicated that (1) lived semantic collective memories were more likely to contain personal recollections than distant semantic collective memories, even though those with distant semantic collective memories could have incorporated memories of the parent's personal experience in their recollections, (2) lived semantic collective memories contained more causal statements, and (3) those on the Right with distant semantic collective memories were more likely to claim that they “Don't know” or offer positive accounts of the Junta, suggesting a need to “defend” the reputation of those on the Right. The results are discussed in terms of the goals and plans different generations might have when recollecting their nation's past.     

Latent semantic analysis cosines as a cognitive similarity measure: Evidence from priming studies

In distributional semantics models (DSMs) such as latent semantic analysis (LSA), words are represented as vectors in a high-dimensional vector space. This allows for computing word similarities as the cosine of the angle between two such vectors. In two experiments, we investigated whether LSA cosine similarities predict priming effects, in that higher cosine similarities are associated with shorter reaction times (RTs). Critically, we applied a pseudo-random procedure in generating the item material to ensure that we directly manipulated LSA cosines as an independent variable. We employed two lexical priming experiments with lexical decision tasks (LDTs). In Experiment 1 we presented participants with 200 different prime words, each paired with one unique target. We found a significant effect of cosine similarities on RTs. The same was true for Experiment 2, where we reversed the prime-target order (primes of Experiment 1 were targets in Experiment 2, and vice versa). The results of these experiments confirm that LSA cosine similarities can predict priming effects, supporting the view that they are psychologically relevant. The present study thereby provides evidence for qualifying LSA cosine similarities not only as a linguistic measure, but also as a cognitive similarity measure. However, it is also shown that other DSMs can outperform LSA as a predictor of priming effects.     

Fitting longitudinal reduced-rank regression models by alternating least squares

An alternating least squares method for iteratively fitting the longitudinal reduced-rank regression model is proposed. The method uses ordinary least squares and majorization substeps to estimate the unknown parameters in the system and measurement equations of the model. In an example with cross-sectional data, it is shown how the results conform closely to results from eigenanalysis. Optimal scaling of nominal and ordinal variables is added in a third substep, and illustrated with two examples involving cross-sectional and longitudinal data.Financial support by the Institute for Traffic Safety Research (SWOV) in Leidschendam, The Netherlands is gratefully acknowledged.     

加法运算中数学知识和语义知识的整合

采用语义启动数字匹配任务及其变式, 探讨在中文背景下“和效应”和语义系统的类比一致性及其产生机制。结果发现, 中国学生对“和”目标数字的反应时显著长于对中性目标数字, 表明“和效应”是人类的一种强烈的认知倾向; 人类通过类比映射方式整合数学知识和语义知识; 影响语义加工的因素同样影响数学认知。研究还发现, 被试对中性目标数字的抑制难度受语义匹配任务性质的影响, 在完成类别不一致的探测词匹配任务时, 拒绝中性目标数字的反应时显著长, “和效应”消失, 表明“和效应”不仅源自于对“和”目标数字的激活, 也源自于对中性目标数字的抑制。     

Confidentiality and paradox: the location of ethical space

Implicit in Jung's alchemical metaphor of the vas bene clausum is the idea of an analytic frame with a space inside it for something vital, a relationship between two selves, to develop. For this to happen, analysts must respect their patients' rights to confidentiality. The paper explores the analyst's state of mind and the intrapsychic processes that are constellated when struggling with ethical dilemmas about issues of confidentiality in analytic work. The author suggests that at times when analysts consider breaking confidentiality, there is often a disturbing inner conflict between their moral principles (codes of ethics) and their internal personal ethical attitude. At these difficult moments, the mutuality of the work and the vas bene clausum can be significantly disrupted. The analyst tries to find a third position, a mental and emotional ethical space where the subjective and the objective, the ethical and the unethical can become more companionable bedfellows.     

汉语并列式合成词的词汇通达

汉语并列式合成词具有三种类型,这三种类型内部不同的词素组合在心理词典中则需要不同的词汇通达时间。实验结果表明,在对汉语并列式合成词的词汇通达过程中,第一成分并不总是起决定作用;同样,并列式合成词中的两个成分在词汇通达过程中并不总是同等重要。实验证明,语义透明度对并列式合成词的词汇通达起重要作用。实验还发现,在心理词典中对并列式合成词的词汇通达需要一个证实原则。     

汉字词和图片命名与分类的比较

采用命名与分类任务考察了汉字词和图片命名与分类的特点,揭示义符在汉字词和图片命名与分类中的作用。结果表明,汉字词和图片的命名与分类与拼音文字的词和图片的命名和分类既有共性,又有差异。汉字词和图片的命名与分类具有不对称性：汉字词的命名快于汉字词的分类,图片的分类快于图片的命名。义符对于汉字词和图片的命名与分类的影响具有不对称性：对汉字词的加工有重要影响,对图片的加工无影响;对汉字词的分类有重要影响,对汉字词的命名无影响。被试对有标示类别的义符的词的分类显著快于对无标示类别的义符的词的分类,甚至快于对图片的分类。所以如此,与汉字词的结构特点有关。汉字形声字多用义符来标记事物的类别,提供了重要的类别信息。根据上述结果,作者构建了汉字词和图片认知加工的综合模型     

词语后情绪环境对语义和感知加工的影响

词语后情绪环境对其中的事件记忆产生影响,但是事件后情绪环境如何影响记忆加工仍不清楚。不同的情绪环境理论—“唤醒偏向竞争理论”,“拓宽-建构理论”,“记忆中心的积极情绪促进理论”支持情绪促进的不同本质。已有的研究表明,注意在情绪记忆中有重要作用。实验一、实验二分别探讨词语后情绪环境对其语义加工与内源源加工和外源源加工的影响。与中性环境相比,积极与消极情绪环境阻碍了外源源特征的加工; 与中性环境和积极情绪环境相比,消极情绪环境阻碍了内源源特征的加工。实验结果支持“唤醒偏向竞争理论”,同时表明“评估”和“注意放置”在情绪环境影响中的重要作用。