公共卫生的作用及政府职责

从20世纪人类健康的进步的贡献和2003年非典危机的爆发,都反映了公共卫生的作用,公共卫生投入对国家社会经济发展和政治及宏观经济的稳定具有不可忽视的作用和不可取代的贡献.理论研究和实证研究揭示了政府公共卫生投入与健康指标的关联,政府为全体人民提供基本公共卫生产品的必要性.而政府提供基本公共卫生服务和保障基本公共卫生产品供给的重要前提是确保政府预算对公共卫生的投入,使其对人民健康产生正向的积极促进作用.明确各级政府在公共卫生中的责任,实行分级管理和考核监督机制,是急待研究和解决的问题.进一步加大政府对公共卫生政府投入水平和改善投入机制,是今后强化中国政府公共卫生职责的一个突破口.     

人造物概念的表征：功能、意图和目的论的解释

以概念结构研究从“相似”到“解释”的理论转向为背景,评述人造物领域的“意图-历史论”（Bloom, 1996）,提出人造物概念结构中自上而下的约束是来自“使用目的”而不是“设计意图”。分析近期报告的大量实验,最后提出人造物概念表征的“基于使用的目的论”的解释模式和人造物归类的双重目标模型。     

青少年异性交往心理问题研究综述

异性交往对青少年的成长与发展具有极其积傲的功能：(1)能够促进自我同一感的发展;(2)有利于增进心理健康;(3)有助于增进友谊．并为日后获得成熟爱情积累经验：同时．青少年异性交往存在不少心理问题。并且．对青少年的异性交往仍存在着教育误区．主要表现为不当的教育观念和教育方式,当前．有关青少年异性交往的研究主要集中在：e3q青a少年异性交往的发展阶段、特点、影响因素和教育构想,缺乏对青少年异性交往心理问题的研究,研究领域较为狭窄;理论研究多．实证研究少;缺乏专门、科学的测量工具。     

论友善

友善的本义是指像朋友一样善良。作为公民道德规范的友善 ,本质上是指友好善良的公民伦理关系和公民秩序。公民关系和公民秩序应该友善 ,是因为 ,我们的良序社会及其公共领域 ,都是伦理性的合作体系。友善规范具有规范、创造、整合功能。友善规范是抽象的 ,它的实施需要细分为更具体的义务 ,即善益待人、和气待人、诚实待人、宽厚以待人、平等相待。友善也是公民的一种主要道德品质 ,公民由之在公共领域做出友善的事情和行为友善。当前公民对于友善患有三症 ,即友善情感上的冷默症、友善行为上的推卸症、友善结果上的恐惧症。克服这三种症状 ,需要伦理、道德、管理等相结合 ,从伦理上建设公民关系和公共秩序。     

传统思想中的“礼”和“礼仪”——兼论“礼”和“礼仪”的道德功能

我国对“礼”和“礼仪”的认识经历了曲折的过程。传统道德中许多关于“礼”和“礼仪”的论述 ,包含着合理的思想内核。我们要很好地利用这笔财富 ,充分发挥它的道德功能 ,广泛地开展礼仪教育 ,加强公民道德建设和社会主义精神文明建设。     

论执行功能及其发展研究

执行功能(executive function,EF)是一个还没有明确定义的概念,但又是一个重要的概念,通常是指个体对思想和行动进行有意识控制的心理过程。目前的主要观点包括神经心理学观点、抑制控制理论、高级认知能力理论(包括工作记忆理论、抑制及工作记忆理论)和认知复杂性和控制理论。主要的研究任务类型包括卡片分类任务、延迟反应任务、基于Stroop任务的冲突反应模式任务、心理理论任务、问题解决任务、“热”执行功能任务等。未来的研究应着重弄清执行功能的本质,结合认知神经科学阐明其与脑神经结构和功能的关系,并从区分“冷”执行功能和“热”执行功能的角度,探讨以情感激活为特点的“热认知”在执行功能中的作用。     

外部攻击型和关系攻击型初中生执行功能的研究

本研究采用数字STROOP、局部-整体图形转换和色点位置刷新三种研究范式检测了40名攻击性初中生的抑制控制、任务转换和信息刷新三种执行功能的特点。研究结果表明,攻击性初中生的抑制控制能力、任务转换能力和信息刷新能力均差于非攻击性初中生。外部攻击型初中生的抑制控制能力、任务转换能力和信息刷新能力均差于非攻击性初中生。而关系攻击型初中生与非攻击性初中生和外部攻击型初中生在执行功能的三种成分上均不存在显著差异,其执行功能水平可能介于非攻击性初中生和外部攻击初中生之间。     

The extent of working memory deficits associated with Williams syndrome: exploration of verbal and spatial domains and executively controlled processes

The present study investigated verbal and spatial working memory (WM) functioning in individuals with the neuro-developmental disorder Williams syndrome (WS) using WM component tasks. While there is strong evidence of WM impairments in WS, previous research has focused on short-term memory and has neglected assessment of executive components of WM. There is a particular lack of consensus concerning the profile of verbal WM functioning in WS. Here, WS participants were compared to typically developing participants matched for (1) verbal ability and (2) spatial ability (N = 14 in each of the 3 groups). Individuals with WS were impaired on verbal WM tasks, both those involving short-term maintenance of information and executive manipulation, in comparison to verbal-matched controls. Surprisingly, individuals with WS were not impaired on a spatial task assessing short-term maintenance of information in memory (remembering spatial locations) compared to spatial-matched controls. They were, however, impaired on a spatial executive WM task requiring the manipulation of spatial information in memory. The present study suggests that individuals with WS show WM impairments that extend to both verbal and spatial domains, although spatial deficits are selective to executive aspects of WM function.     

One night of sleep deprivation affects reaction time, but not interference or facilitation in a Stroop task

The Stroop color-naming task is one of the most widely studied tasks involving the inhibition of a prepotent response, regarded as an executive function. Several studies have examined performance on versions of the Stroop task under conditions of acute sleep deprivation. Though these studies revealed effects on Stroop performance, the results often do not differentiate between general effects of sleep deprivation on performance and effects specifically on interference in the Stroop task. To examine the effect of prolonged wakefulness on performance on the Stroop task, we studied participants in a 40-h "constant routine" protocol during which they remained awake in constant conditions and performed a Stroop color-naming task every two hours. We found that reaction time was slowest when the color and word did not match (incongruent), fastest when the color and word did match (congruent), and intermediate when participants named the color of the non-word stimulus (neutral). Performance on all three trial types degraded significantly as a function of time awake. Extended wakefulness did not significantly change the additional time needed to respond when the color and word did not match (Stroop interference), nor did it change the amount of facilitation when color and word matched. These results indicate that one night of sleep deprivation influences performance on the Stroop task by an overall increase in response time, but does not appear to impact the underlying processes of interference or facilitation. The results suggest that the degree to which an "executive function" is affected by sleep deprivation may depend on the particular executive function studied and the degree to which it is subserved by the prefrontal cortex.     

Executive functioning and prospective memory in young children

The current study examined the role of executive functioning (EF) in children's prospective memory (PM) by assessing the effect of delay and number of intentions to-be-remembered on PM, as well as relations between PM and EF. Ninety-six 4-, 5-, and 6-year-olds completed a PM task and two executive function tasks. The PM task required children to interrupt an ongoing card game to perform one action (single intention) or two actions (dual intention) with target cards after a short delay (1 min) or a long delay (5 min). There was no main effect of number of intentions or delay on the PM task. However, performance improved with age, and age and delay interacted such that 4-year-olds’ performance remained the same after a long delay whereas 5-year-olds’ performance improved after a long delay. We suggest that the age by delay interaction is a product of age differences in cognitive monitoring. Working memory but not inhibitory control predicted PM with age controlled. We argue that an executive function framework permits an integrative understanding of many processes involved in young children's prospective memory.