Association between individual differences in non-symbolic number acuity and math performance: A meta-analysis

Many recent studies have examined the association between number acuity, which is the ability to rapidly and non-symbolically estimate the quantity of items appearing in a scene, and symbolic math performance. However, various contradictory results have been reported. To comprehensively evaluate the association between number acuity and symbolic math performance, we conduct a meta-analysis to synthesize the results observed in previous studies. First, a meta-analysis of cross-sectional studies (36 samples, N = 4705) revealed a significant positive correlation between these skills (r = 0.20, 95% CI = [0.14, 0.26]); the association remained after considering other potential moderators (e.g., whether general cognitive abilities were controlled). Moreover, a meta-analysis of longitudinal studies revealed 1) that number acuity may prospectively predict later math performance (r = 0.24, 95% CI = [0.11, 0.37]; 6 samples) and 2) that number acuity is retrospectively correlated to early math performance as well (r = 0.17, 95% CI = [0.07, 0.26]; 5 samples). In summary, these pieces of evidence demonstrate a moderate but statistically significant association between number acuity and math performance. Based on the estimated effect sizes, power analyses were conducted, which suggested that many previous studies were underpowered due to small sample sizes. This may account for the disparity between findings in the literature, at least in part. Finally, the theoretical and practical implications of our meta-analytic findings are presented, and future research questions are discussed.     

反映还是形成？平行还是层级？PSM的模型建构与检验

在心理学领域,传统的多指标潜变量的测量模型大都采用反映性建构,各指标反映了潜在构念,构念是各指标的原因.但实际上有些构念应该采用形成性建构,各指标是原因,形成了潜在构念.建构方式的选择不仅要从理论来考虑,还要通过数据特征来决定.研究以公共服务动机（PSM）构念为例,通过公益投资游戏取得投资绩效和满意度效标,验证了先前研究提出的“一阶反映二阶形成”建构模式,并进一步检验了层级性建构方式的优势,有助于PSM理论框架与实证测量的统一.     

新农合制度调整前后豫北地区腹膜透析患者透析质量的比较

腹膜透析是终末期肾脏病的有效替代治疗方法之一。2012年4月,河南省对包括慢性肾衰竭在内的六种疾病的新农合报销比例做出重大调整,腹透患者主要经济花费的透析液报销比例由原来的40％提高至80％。通过研究新农合制度调整前后豫北地区腹膜透析患者的临床资料,报告了制度调整后的患者透析充分性提高,贫血、营养状况较前好转,心血管疾病发生率下降,生存质量改善的现况,论证了老龄、糖尿病、营养不良、心血管疾病、透析不充分、较低的医疗保险支付比例是影响腹膜透析患者预后的重要因素,为腹膜透析患者的预后分析提供了理论依据。     

Temporal integration of speech prosody is shaped by language experience: an fMRI study

Differences in hemispheric functions underlying speech perception may be related to the size of temporal integration windows over which prosodic features (e.g., pitch) span in the speech signal. Chinese tone and intonation, both signaled by variations in pitch contours, span over shorter (local) and longer (global) temporal domains, respectively. This cross-linguistic (Chinese and English) study uses functional magnetic resonance imaging to show that pitch contours associated with tones are processed in the left hemisphere by Chinese listeners only, whereas pitch contours associated with intonation are processed predominantly in the right hemisphere. These findings argue against the view that all aspects of speech prosody are lateralized to the right hemisphere, and promote the idea that varying-sized temporal integration windows reflect a neurobiological adaptation to meet the 'prosodic needs' of a particular language.     

心理账户和薪酬激励的实验研究

心理账户是人们在心理上对结果,尤其是经济结果的编码,分类和估价的过程,它反映了人们在进行资金财富决策过程中的心理认知过程。心理账户有着有别于经济账户的运算法则。实验研究发现,改变薪酬的预期参照点,可以改变人们对同一结果的认知评价,从而达到不同的激励效果;低金额奖酬时人们倾向于选择物品,而高金额奖酬是人们倾向与选择现金。     

情绪对工作记忆影响的研究综述

情绪在我们的生活中扮演着十分重要的角色,各种认知活动都或多或少的受其影响。有关情绪与工作记忆相互作用的研究中,很多的证据表明,情绪对认知表现的影响可能是通过工作记忆完成的。本文对情绪分类,情绪影响工作记忆的相关理论及以往的相关研究进行了介绍,同时提出存在的问题并进行展望。     

心理账户:缘起、理论及应用

心理账户深刻地体现了心理学和经济学的结合,是在行为经济学的大背景下开始研究的。心理账户是人们在心理上对结果,尤其是经济结果的编码,分类和估价的过程,它反映了人们在进行资金财富决策过程中的心理认知过程。心理账户与经济账户的运算法则不同,它具有非替代性。心理账户与金融投资结合形成了行为资产组合理论,心理账户与消费经济结合,形成了行为生命周期理论。     

Visually perceived eye level: changes induced by a pitched-from-vertical 2-line visual field.

The physical elevation corresponding to visually perceived eye level (VPEL) changes linearly with the pitch of a visual field. Deviations from true eye level average more than 0.5 times the angle of pitch over a 65 degrees pitch range. A visual field consisting of 2 dim, isolated vertical lines in darkness is more than 4/5 as effective as that of a complexly structured visual field; 2 horizontal lines have a small and inconsistent effect. Differences in influence on VPEL between pitched-from-vertical and horizontal lines were predicted from an analysis that extracted differences in retinal perspective resulting from changes in pitch. The Great Circle Model (GCM), based on a spherical approximation to the erect, stationary eye, predicts the present results and results of 8 other sets of experiments. The model treats the influence of a single line on VPEL as systematically related to the elevation of the intersection between the great circle containing the image of the line and the central vertical retinal meridian; generalized GCM combines visual inputs with inputs from the body-referenced mechanism and maps onto the central nervous system.     

胰岛细胞移植治疗1型糖尿病现状与未来

自2000年加拿大Edmonton报道了7例1型糖尿病患者施行胰岛细胞移植术成功以来,越来越多的人把注意力投向了胰岛细胞移植的领域.然而,临床移植工作的成功开展还面临两大困难,一方面现有的胰岛细胞来源已经远远不能满足临床移植的需要,另一方面,现有免疫抑制方案造成了很多副作用.近年来,科技工作者正在探索新的途径,寻找新的胰岛来源.特别是包括体外重编程干细胞(iPS)、调节性T细胞和脐血干细胞在内的多种新技术的研究工作取得了许多进展,将为我们提供更多的选择,有可能成为今后的发展方向.本文就胰岛细胞移植治疗1型糖尿病的现状与未来展望进行简要的综述.     

反恐维稳行动中优化谈判专家心理能力的基本措施

反恐维稳行动任务的多样性要求必须有特种能力的专业人员参与其中,谈判专家以其特殊的的角色在人质危机等活动中发挥着重要的作用。本文从谈判专家心理能力的构成要素出发,分析了谈判专家应当具备的心理能力,以及优化这些能力的基本措施。