班级环境变量对儿童社会行为与学校适应间关系的影响

运用同伴提名和问卷法,对82个城市初中班级的4650名学生进行了测试,并使用多水平分析技术探讨了班级环境变量对儿童社会行为和学校适应间关系的影响。结果显示：儿童的亲社会行为可以显著地正向预测其同伴接受和学业成就,儿童的攻击、退缩行为对学业成就和同伴接受有明显的负向预测效果;在班级环境变量方面,老师支持可以减弱退缩行为和学校适应间的负向联系;老师训诫不仅可以减弱攻击行为与同伴接受间的负向关联,并且对退缩行为与学业成就之间的负向联系也具有削弱效果;同学关系这一变量的班级效果最为明显,可以明显地增强儿童问题行为与学校适应间的负向联系;而班级秩序纪律对攻击行为和学校适应间的负向关联有明显的强化效果。     

宗教体验的神经生理基础

宗教体验是人在宗教活动中的心态或体悟及伴随的情感体验,它是一个过程。其神经生理基础的研究表明,宗教体验过程中大脑的某些特定脑波或区域被激活。这些研究表明宗教体验与认知和情绪有关,在一定程度上与早期有关宗教体验实质的结论吻合,但这并不表明大脑中存在“上帝脑区”。该文简要介绍了宗教体验的概念、冥想以及基督教宗教体验神经生理基础的研究以及跨宗教传统的相关比较研究,并对该领域内的一些问题做出了说明     

Association of polymorphisms in BDNF, MTHFR, and genes involved in the dopaminergic pathway with memory in a healthy Chinese population

The contribution of genetic factors to the memory is widely acknowledged. Research suggests that these factors include genes involved in the dopaminergic pathway, as well as the genes for brain-derived neurotrophic factor (BDNF) and methylenetetrahydrofolate reductase (MTHFR). The activity of the products of these genes is affected by single nucleotide polymorphisms (SNPs) within the genes. This study investigates the association between memory and SNPs in genes involved in the dopaminergic pathway, as well as in the BDNF and MTHFR genes, in a sample of healthy individuals. The sample includes 134 Taiwanese undergraduate volunteers of similar cognitive ability. The Chinese versions of the Wechsler Memory Scale (WMS-III) and Wechsler Adult Intelligence Scale (WAIS-III) were employed. Our findings indicate that the BDNF Met66Val polymorphism and dopamine receptor D3 (DRD3) Ser9Gly polymorphism are associated significantly with long-term auditory memory. Further analysis detects no significant associations in the other polymorphisms and indices. Future replicated studies with larger sample sizes, and studies that consider different ethnic groups, are encouraged.     

The Performance of Multivariate Methods for Two-Group Comparisons with Small Samples and Incomplete Data

Abstract

In intervention studies having multiple outcomes, researchers often use a series of univariate tests (e.g., ANOVAs) to assess group mean differences. Previous research found that this approach properly controls Type I error and generally provides greater power compared to MANOVA, especially under realistic effect size and correlation combinations. However, when group differences are assessed for a specific outcome, these procedures are strictly univariate and do not consider the outcome correlations, which may be problematic with missing outcome data. Linear mixed or multivariate multilevel models (MVMMs), implemented with maximum likelihood estimation, present an alternative analysis option where outcome correlations are taken into account when specific group mean differences are estimated. In this study, we use simulation methods to compare the performance of separate independent samples t tests estimated with ordinary least squares and analogous t tests from MVMMs to assess two-group mean differences with multiple outcomes under small sample and missingness conditions. Study results indicated that a MVMM implemented with restricted maximum likelihood estimation combined with the Kenward–Roger correction had the best performance. Therefore, for intervention studies with small N and normally distributed multivariate outcomes, the Kenward–Roger procedure is recommended over traditional methods and conventional MVMM analyses, particularly with incomplete data.     

Symbolically speaking: a connectionist model of sentence production

The ability to combine words into novel sentences has been used to argue that humans have symbolic language production abilities. Critiques of connectionist models of language often center on the inability of these models to generalize symbolically (Fodor & Pylyshyn, 1988; Marcus, 1998). To address these issues, a connectionist model of sentence production was developed. The model had variables (role‐concept bindings) that were inspired by spatial representations (Landau & Jackendoff, 1993). In order to take advantage of these variables, a novel dual‐pathway architecture with event semantics is proposed and shown to be better at symbolic generalization than several variants. This architecture has one pathway for mapping message content to words and a separate pathway that enforces sequencing constraints. Analysis of the model's hidden units demonstrated that the model learned different types of information in each pathway, and that the model's compositional behavior arose from the combination of these two pathways. The model's ability to balance symbolic and statistical behavior in syntax acquisition and to model aphasic double dissociations provided independent support for the dual‐pathway architecture.     

错失恐惧对大学生社交网络成瘾的影响:社交网络整合性使用与社交网络支持的中介作用

错失恐惧是社交网络成瘾的风险因素，但其中的作用机制并不清楚。本研究采用错失恐惧问卷、社交网络整合性使用量表、社交网络支持量表和中文社交网络成瘾量表，调查了重庆市三所高校的493名大一至大三的学生，探讨错失恐惧影响社交网络成瘾的机制。结果发现：（1）错失恐惧显著预测社交网络成瘾，错失恐惧水平越高，个体社交网络成瘾水平越高。（2）社交网络整合性使用在错失恐惧和社交网络成瘾之间起独立中介作用。（3）社交网络支持在错失恐惧和社交网络成瘾之间起独立中介作用。（4）社交网络整合性使用和社交网络支持在错失恐惧和社交网络成瘾之间起链式中介作用。研究结果表明，满足大学生基本心理需要、降低社交网络使用程度、提升现实社会支持可以有效预防社交网络成瘾。     

PHONOLOGICAL RECODING OF MIXED-CASE WORDS IN THE PRIMING TASK

The successes of the phonological recoding hypothesis induced us naturally to question the role of orthographic information. Mixed-case words (e.g., tOwEd -> toad vs. tOlD -> toad) were used as a prime in the priming task in order to investigate the locus of an orthographic spelling check, based on the assumption of the phonological recoding hypothesis. Experiment 1 showed that both normal-case prime and mixed-case prime produced significant phonological priming in a short Stimulus Onset Asynchrony (SOA) of the prime and the target. In contrast, Experiment 2, using a long SOA, showed that the mixed-case prime maintained the phonological priming, but the normal-case prime did not. These results indicated that the orthographic spelling check distinguished the normal-case and the mixed-case in a later stage of word recognition, not in an early stage.     

血管外科治疗进展与科技发展的关系

血管外科在近几十年日益发展成熟,并逐渐从普外科分离出来成为单独发展的学科.在科技发展日新月异的新世纪,新技术新材料的应用也推动着血管外科诊疗手段的突飞猛进.这就要求从事血管外科的医务工作者在临床工作中要树立科技发展观的意识,及时了解科技前沿的发展动态,用新技术新方法改善治疗效果,最大程度地减少患者的痛苦和提高患者的生活质量,促进人类健康生存和发展.     

II—Reflections on the Reasonable and the Rational in Conflict Resolution

Most familiar approaches to social conflict moot reasonable ways of dealing with conflict, ways that aim to serve values such as legitimacy, justice, morality, fairness, fidelity to individual preferences, and so on. In this paper, I explore an alternative approach to social conflict that contrasts with the leading approaches of Rawlsians, perfectionists, and social choice theorists. The proposed approach takes intrinsic features of the conflict—what I call a conflict's evaluative 'structure'—as grounds for a rational way of responding to that conflict. Like conflict within a single person, social conflict can have a distinctive evaluative structure that supports certain rational responses over others. I suggest that one common structure in both intra- and interpersonal cases of conflict supports the rational response of 'self-governance'. Self-governance in the case of social conflict involves a society's deliberating over the question, 'What kind of society should we be?' In liberal democracies, this rational response is also a reasonable one.