青少年与同伴的自我表露及其与孤独感的关系

采用问卷法,以655名初高中生为被试,考察青少年与同伴自我表露的发展特点及其与孤独感的关系。结果表明:(1)高中生与不同表露对象以及在不同主题上的自我表露都高于初中生;(2)女生在除身体发育外的6个主题上的自我表露以及与同性最要好朋友的自我表露都高于男生;(3)青少年与最要好同性朋友的自我表露以及在兴趣爱好和身体发育两个主题上的自我表露能显著负向预测其孤独感。     

儿童特质推理中的信息利用

特质研究是心理理论框架中一个重要方面。儿童进行特质推理时对特质信息的利用,是考察其是否拥有完整特质概念的一个重要指标。综述以往研究可以看到在获得完整的特质概念之前,儿童倾向于运用到特质以外的其他信息做出跨特质范畴的推论,尤其是这些信息比特质信息更加具体明显时。文章概述了六个可能影响到儿童特质推理的信息:情境信息、行为频率、示例频率、效价信息、随意性信息、规则信息。在此基础上,对该领域的研究趋势作了展望。     

Self-Efficacy and the Prediction of Domain-Specific Cognitive Abilities

ABSTRACT We evaluated predictors of performance in 4 specific cognitive ability domains: verbal, numerical, spatial, and mechanical. The predictors were individual differences in self-efficacy beliefs, self-enhancement tendencies, and cross-domain abilities. Our university students' beliefs about their verbal, numerical, and spatial capabilities correlated well with their actual performance on standardized tests (verbal r =.33, numerical r =.27, spatial r =.36). In contrast, the students' self-efficacy for mechanical tasks did relatively poorly in predicting mechanical test performance ( r =.10). Most interesting were two other findings: (a) The best predictor of domain performance was level of cross-domain performance by far, even for mechanical tasks, and (b) self-enhancement tendencies added to cross-domain abilities and self-efficacy beliefs in the prediction of performance. The results are discussed in terms of possible mechanisms explaining how one's score on a maximal performance task can be affected by self-efficacy beliefs and self-enhancement tendencies.     

不熟悉材料伴随熟悉类别标签时儿童的归纳推理

对呈现在儿童面前的不熟悉的材料用儿童熟悉的、各不相同的类别标签命名之后,使儿童面临知觉相似和类别冲突的情形下,研究了儿童的归纳推理及其发展。研究结果显示,在此情形下,5岁儿童的归纳推理主要是基于知觉相似的,7岁儿童基于知觉相似和基于类别的归纳推理之间差异不显著,11岁儿童则主要基于类别进行归纳推理。     

浅析医生处方权的属性与规范——基于医疗卫生资源微观配置视角的分析

从医疗卫生资源微观配置视角分析,处方权是一种资源配置权力,属于公权力.主要分析了医生处方权的权力来源、医生处方权的职权性质和医生处方权的源权力属性.鉴于此,建立处方权独立行使的保障制度与处方权规范行使的程序控制制度可以有效规范医生处方权的行使.     

The Stability of Literacy-Related Cognitive Contributions to Chinese Character Naming and Reading Fluency

The present study examined the developmental issue of cognitive factors that explain Chinese literacy. Phonological awareness, rapid automatized naming, short-term memory, orthographic awareness and morphological awareness and two literacy tasks (character naming and reading fluency) were administered to 408 second-graders, 428 fourth-graders and 496 six-graders. Results from linear regression analysis and path analysis model showed that the five reading-related cognitive constructs explained unique variances in character naming. Second, character naming is primary for reading fluency after controlling other cognitive constructs; third, the relation between the cognitive factors and literacy changes significantly as a function of reading skills. Results give a clear direction to understanding Chinese reading development.     

The influence of attentional control on stimulus processing is category specific in Stroop tasks

It is still unclear how attentional control influences stimulus processing. We investigated this issue in four Stroop task experiments utilizing a pretest–training–posttest design. Subjects were given extensive training on the Stroop task using typical incongruent Stroop trials. The rates of color naming and word reading, which reflect the efficiency of stimulus processing, were assessed in pretest and posttest. The difference in rates between posttests and pretests reflects the influence of attentional control, acquired during the training phase, on stimulus processing. In Experiment 1, members of color category were used in the training phase; in Experiment 2, members of color category were used, but not in the training phase; in Experiment 3, they were neither in the color category nor were they used in the training. The results consistently showed that the suppression of word reading and the enhancement of color naming were developed in the training phases and they were not due to general training of color-naming task without conflict but to color-naming training with Stroop conflict (Experiment 4). More importantly, both suppression and enhancement affected the members of color category regardless of whether they were trained or not. The present findings suggest that the influence of attentional control on stimulus processing is category specific. We discuss the implications of the present results in terms of existing research on the locus of attentional control in Stroop tasks.     

Original thinking in preschool children: A validation of ideational fluency measures

This investigation examined the original thinking of preschool children (N=48). The instruments were lenient and stringent solution‐standard measures of original problem solving and two subsets of the Wechsler Preschool and Primary Scale of Intelligence. Scores for popular and original responses were computed for the lenient and stringent measures. Findings supported the construct validity of conceptualizations of original problem solving based on ideational fluency within the lenient measures, but not within stringent measures. Findings also indicated that the lenient measures are better predictors of real‐world original behavior than stringent measures, especially for young children. The need for development of more reliable and valid measures for assessing real‐world creative behavior is discussed.     

Neural correlates of inefficient filtering of emotionally neutral distractors from working memory in trait anxiety

Research has indicated that highly trait-anxious (HTA) individuals exhibit a specific deficit in filtering threat-related distractors from visual–spatial working memory (WM). Prior demonstrations of impaired inhibition control in HTA individuals have mainly focused on tasks that required the inhibition of prepotent response tendencies. Studies on the suppression of emotionally neutral distractors from WM in trait anxiety have also been minimal. In this article, we present a study on the manifestation of general inefficient filtering of neutral distractors during visual–spatial WM maintenance stages in HTA individuals. Female participants performed a visual–spatial WM task while event-related potentials were recorded. They were made to remember the orientations of red rectangles within half of the screen and to ignore all salient green rectangles. As predicted, no significant main effect of group and no interaction between group and condition were found in the N2pc component, suggesting that group differences did not manifest in the initial process of object individuation. During the subsequent WM maintenance phase, HTA individuals were highly inefficient at filtering the irrelevant items from WM, as reflected not only by parallel late contralateral delay activity (CDA; 450 to 900 ms) amplitudes for the distractor condition and the four red items, but also by a smaller filtering efficiency score in the HTA group than in the low-trait-anxiety group. Extending previous studies, our findings verify a general filtering impairment in HTA individuals for task-irrelevant salient distractors during a WM maintenance phase.     

关于克隆人试验与伦理学的三原则

由于克隆人试验的对象是人的活细胞,不是人的胚胎;并且由于人只能有限地决定自己的未来,根本无法决定自己的出生;同时由于基因诊断和修复有助于新生儿的健康,因而克隆人试验既不会伤害任何人的生命体,也不会侵犯任何可能出现的克隆人的自主权和平等权,进而不会违反伦理学的三原则。