Brain bases of English morphological processing: A comparison between Chinese-English,Spanish-English bilingual,and English monolingual children

How do early bilingual experiences influence children's neural architecture for word processing? Dual language acquisition can yield common influences that may be shared across different bilingual groups, as well as language-specific influences stemming from a given language pairing. To investigate these effects, we examined bilingual English speakers of Chinese or Spanish, and English monolinguals, all raised in the US (N = 152, ages 5–10). Children completed an English morphological word processing task during fNIRS neuroimaging. The findings revealed both language-specific and shared bilingual effects. The language-specific effects were that Chinese and Spanish bilinguals showed principled differences in their neural organization for English lexical morphology. The common bilingual effects shared by the two groups were that in both bilingual groups, increased home language proficiency was associated with stronger left superior temporal gyrus (STG) activation when processing the English word structures that are most dissimilar from the home language. The findings inform theories of language and brain development during the key periods of neural reorganization for learning to read by illuminating experience-based plasticity in linguistically diverse learners.     

Nonlinear Predictive Models for Multiple Mediation Analysis: With an Application to Explore Ethnic Disparities in Anxiety and Depression Among Cancer Survivors

Mediation analysis allows the examination of effects of a third variable (mediator/confounder) in the causal pathway between an exposure and an outcome. The general multiple mediation analysis method (MMA), proposed by Yu et al., improves traditional methods (e.g., estimation of natural and controlled direct effects) to enable consideration of multiple mediators/confounders simultaneously and the use of linear and nonlinear predictive models for estimating mediation/confounding effects. Previous studies find that compared with non-Hispanic cancer survivors, Hispanic survivors are more likely to endure anxiety and depression after cancer diagnoses. In this paper, we applied MMA on MY-Health study to identify mediators/confounders and quantify the indirect effect of each identified mediator/confounder in explaining ethnic disparities in anxiety and depression among cancer survivors who enrolled in the study. We considered a number of socio-demographic variables, tumor characteristics, and treatment factors as potential mediators/confounders and found that most of the ethnic differences in anxiety or depression between Hispanic and non-Hispanic white cancer survivors were explained by younger diagnosis age, lower education level, lower proportions of employment, less likely of being born in the USA, less insurance, and less social support among Hispanic patients.     

Object representations are biased toward each other through statistical learning

The visual system is remarkably efficient at extracting regularities from the environment through statistical learning. While such extraction has extensive consequences on cognition, it is unclear how statistical learning shapes the representations of the individual objects that comprise the regularities. Here we examine how statistical learning alters object representations. In three experiments, participants were exposed to either random arrays containing objects in a random order, or structured arrays containing object pairs where two objects appeared next to each other in fixed spatial or temporal configurations. After exposure, one object in each pair was briefly presented and participants judged the location or the orientation of the object without seeing the other object in the pair. We found that when an object reliably appeared next to another object in space, it was judged as being closer to the other object in space even though the other object was never presented (Experiments 1 and 2). Likewise, when an object reliably preceded another object in time, its orientation was biased toward the orientation of the other object even though the other object was never presented (Experiment 3). These results demonstrated that statistical learning fundamentally shapes how individual objects are represented in visual memory, by biasing the representation of one object toward its co-occurring partner. Importantly, participants in all experiments were not explicitly aware of the regularities. Thus, the bias in object representations was implicit. The current study reveals a novel impact of statistical learning on object representation: spatially co-occurring objects are represented as being closer in space, and temporally co-occurring objects are represented as having more similar features.     

不同线索下特质焦虑个体的返回抑制

焦虑与注意偏向的研究是近年来情绪与认知领域的热点。为探讨特质焦虑个体的注意偏向特点及其返回抑制能力是否受不同线索的调节, 采用特质焦虑量表筛选高特质焦虑大学生29名, 低特质焦虑大学生28名完成线索-靶子任务。要求被试在提示线索消失后, 对位置进行快而准地辨别反应, 分别探索中性和情绪性提示线索下被试的返回抑制。结果发现：(1)在中性线索条件下, 高焦虑个体平均反应时慢于低焦虑个体。(2) 在情绪线索条件下, 高焦虑个体在负性线索下的反应时小于在正性线索下的反应时; 高、低焦虑个体在各种SOA条件下均出现了返回抑制, 但各组返回抑制量受到情绪线索的调节：在正性情绪线索条件下, 两组返回抑制量没有显著差异; 在负性情绪线索下, 高焦虑个体返回抑制量显著小于低焦虑个体。这表明, (1)焦虑个体的注意偏向受到刺激信息的影响：只对负性情绪线索出现注意警觉; (2)只有在涉及负性情绪信息时高、低焦虑个体返回抑制能力才有差异, 高焦虑个体存在对负性情绪线索的抑制困难。     

《尚书》伦理思想探析

《尚书》中的伦理思想肇始于夏商周三代生产力的发展、王朝更替的推动和天命观的形成。《尚书》中的伦理思想包括:民本思想、德的思想、孝友思想、个人修养思想以及宗教伦理思想。这些思想为中国古代伦理思想的形成奠定了基础,不仅为先秦伦理思想的形成起了引领作用,而且影响中国两千多年封建社会伦理文化的脉路。     

Perceptions of Age and Creativity in the Workforce

As the workforce ages it becomes important to examine if there is misperception of creativity and age in work contexts. A laboratory experiment examined perceptions of the creativity of a team with both young and old workers and of a team composed entirely of young workers. Scripted videos portrayed such teams engaged in designing an outdoor advertising campaign. Altogether, 220 participants were randomly assigned to watch one of the video clips and complete a structured questionnaire. No significant differences were observed in the perceptions of the two teams' performance or of the quality of the resulting advertising proposal. In general, there was also no significant difference in the individual characteristics attributed to the four characters on the teams. However, participants aged 35 or above evaluated both teams and all four characters more favorably than participants aged 20–34.     

大学生网络依赖测量工具的修订与应用

以北京五所高校大学生为样本,修订了中文网络成瘾量表(CIAS-R),并在此基础上界定出正常群体,网络依赖群体与网络成瘾群体的划分标准.三类群体在网络休闲占课余时间百分比、强迫症状及人际关系敏感得分上均有显著差异.     

关于健康观认知构造的中日比较研究

本研究的目的是揭示大学生关于健康观的认知构造,并对中日大学生健康观的认知构造进行比较。通过对收集到的日常生活的健康观数据进行处理,制成了一个包含50个项目的问卷,然后对收集到的儿8名日本大学生和81名中国大学生的数据进行了因子分析,得到了健康观认知构造的五个因子,即“自律性”(因子Ⅰ)、“主观自我”(因子Ⅱ)、“身体因素”(因子Ⅲ)、“心理因素”(因子Ⅳ)、“健康习惯”(因子Ⅴ)。中日学生的健康观认知结构在Ⅰ、Ⅲ、Ⅳ因子上存在差异。     

初中生偶像崇拜及其与生活目标和主观幸福感的关系:性别的调节作用

本研究以3587名初中生为对象,采用问卷测量法,考察了初中生偶像崇拜在性别和年级上的差异,及其与生活目标和主观幸福感的关系,并探究了性别在其中的调节作用。研究发现：（1）女生的偶像崇拜水平显著高于男生的,且偶像崇拜高水平组中女生人数显著多于男生,偶像崇拜低水平组中则相反;初一与初二年级间偶像崇拜的水平及在不同水平上的人数分布均无显著差异。（2）外在生活目标能够正向预测初中生的偶像崇拜水平,其中性别起调节作用,外在生活目标对女生偶像崇拜水平的影响大于男生。（3）性别对偶像崇拜影响初中生主观幸福感上也具有调节作用,即偶像崇拜水平负向预测初中女生的主观幸福感,对男生的主观幸福感则影响不显著。