整体护理与新医学模式

整体护理作为当代护理的基本工作模式和护理学发展的基本趋势,是与生物心理社会医学模式的确立直接相联系的。在临床护理中,落实新医学模式,是推行整体护理所必需的。在整体护理中落实新医学模式应从转变护理人员观念、整体护理规范化、改变护理队伍的知识和技能结构、提供护士职业道德水平等方面做起。     

干扰刺激类型对内隐记忆提取干扰的调节

为了探讨内隐记忆提取干扰效应是否敏于注意资源的变化,该实验沿用前期经典的“学习-测验”范式,通过在提取阶段同时设置两种不同刺激类型的干扰任务:箭头干扰和汉字干扰,以此来探讨内隐记忆提取干扰效应的本质所在。结果发现,不同提取干扰条件对内隐记忆产生不同程度的影响,汉字干扰对内隐记忆的影响比箭头产生的干扰更大。结果表明,干扰刺激类型会调节内隐记忆提取干扰效应的大小,证实内隐记忆提取干扰敏于注意资源的变化。     

瞳孔变化在记忆加工中的生物标记作用

瞳孔在不同记忆任务的同一加工阶段内具有变化模式的一致性, 瞳孔的缩放变化反映了信息加工过程中神经系统的激活状态。在刺激呈现前的预编码阶段, 瞳孔随个体注意集中水平的提高而收缩。在信息编码阶段, 瞳孔扩张程度作为相继记忆效应的生物标记, 可预测信息未来提取阶段的回忆成绩。在信息提取阶段, 采用自由回忆任务时, 瞳孔随记忆负荷的释放而迅速收缩, 但每个项目的提取均会引发小幅度瞳孔扩张; 而在再认提取任务中, 呈现旧刺激比呈现新刺激时瞳孔扩张更明显, 产生瞳孔新旧效应。瞳孔是记忆加工中敏感而稳定的生物标记, 而瞳孔测量法是探究记忆加工生理机制的有效手段。未来可以从瞳孔追踪术的角度, 采用多种研究手段进一步探究记忆的生理机制。     

心理健康素养：内涵、测量与新概念框架

本文概述了国内外心理健康素养概念的研究及其测量的演进。在此基础上尝试提出国民心理健康素养的新概念框架。新概念将心理健康素养定义为个体在促进自身及他人心理健康,应对自身及他人心理疾病方面所养成的知识、态度和行为习惯。新概念框架包含“心理疾病应对——心理健康促进”和“自我——他人”两个维度;在内容上包含知识、态度和行为习惯三个方面。文章还探讨了未来的研究方向。     

MCMC estimation and some model-fit analysis of multidimensional IRT models

A Bayesian procedure to estimate the three-parameter normal ogive model and a generalization of the procedure to a model with multidimensional ability parameters are presented. The procedure is a generalization of a procedure by Albert (1992) for estimating the two-parameter normal ogive model. The procedure supports analyzing data from multiple populations and incomplete designs. It is shown that restrictions can be imposed on the factor matrix for testing specific hypotheses about the ability structure. The technique is illustrated using simulated and real data. The authors would like to thank Norman Verhelst for his valuable comments and ACT, CITO group and SweSAT for the use of their data.     

The importance of impaired physical health and age in normal cognitive aging

The objective of this study was to investigate the importance of impaired physical health and age in normal cognitive aging. In our cross-sectional, clinical and explorative study, medical and neuropsychological data from 118 voluntary healthy controls aged 26-91 years were collected from five recruitment occasions. Health was assessed according to a criterion reflecting clinical and subclinical severity. The examinations included a clinical investigation, brain neuroimaging, and a comprehensive neuropsychological assessment. Regression analyses showed a significant incidence of clinical and subclinical medical disorders that explained 10.8% of the variation in cognitive performance, while age-related impairment explained 5.6%. Findings of the central nervous system were important but various other medical findings explained about half of the health-related variation. Cognitively demanding tasks were more susceptible to impaired physical health while tasks comprising salient motor- and visual spatial elements were more prone to be impaired by age. Our findings suggest (1) that impaired physical health is more important than chronological age in accounting for cognitive impairment across the adult lifespan, (2) that age and health dissociate with regard to cognitive functions affected, and (3) that selection for so-called "super healthy" elderly people might be justified in cognitive research. Because the prevalent diseases in normal aging are potentially preventable, the present findings promise good prospect for prevention of future cognitive disability among elderly people.     

新时期我国农村卫生服务体系的路径选择

解决好占中国人口将近70%的农民的健康问题,是全面建设小康社会中非常重要的问题。如何完善现有的卫生服务体系、构建真正惠及全体农业人口的卫生服务体系又是农村卫生事业发展的重中之重。试从制度经济学的角度出发,探讨新时期我国农村卫生服务体系的路径选择。     

城市化进程中被征地新居民的心理反应与需求状况研究

以东、西部被征地新居民为对象,通过访谈和问卷调查,着重考察了被征地新居民对土地被征用的情绪反应、行为变化和需求状况。结果发现:大多数被征地新居民都为土地被征用而担心生计问题;在土地被征用后,只有个别被征地新居民(不到6.4%)的生活水平和生活满意度有所提高,但比较西部地区,东部地区被征地新居民的情形要好得多;绝大多数被征地新居民虽然迫切希望解决他们所面临的问题,但尚无如何帮助他们的具体建议、也无自身如何努力的具体方向。研究认为,有关部门应加强对被征地新居民的再社会化培训和教育。     

Lexical configuration and lexical engagement: when adults learn new words

People know thousands of words in their native language, and each of these words must be learned at some time in the person's lifetime. A large number of these words will be learned when the person is an adult, reflecting the fact that the mental lexicon is continuously changing. We explore how new words get added to the mental lexicon, and provide empirical support for a theoretical distinction between what we call lexical configuration and lexical engagement. Lexical configuration is the set of factual knowledge associated with a word (e.g., the word's sound, spelling, meaning, or syntactic role). Almost all previous research on word learning has focused on this aspect. However, it is also critical to understand the process by which a word becomes capable of lexical engagement--the ways in which a lexical entry dynamically interacts with other lexical entries, and with sublexical representations. For example, lexical entries compete with each other during word recognition (inhibition within the lexical level), and they also support the activation of their constituents (top-down lexical-phonemic facilitation, and lexically-based perceptual learning). We systematically vary the learning conditions for new words, and use separate measures of lexical configuration and engagement. Several surprising dissociations in behavior demonstrate the importance of the theoretical distinction between configuration and engagement.