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821.
822.
关联效应中对情绪诱词的错误再认的实验研究   总被引:1,自引:1,他引:0  
采用DRM范式,考察了在汉字单字词语音关联和形声关联条件下对具有情绪色彩的关键诱词的错误再认情况,结果表明:(1)汉字中存在着语音和字形关联,但是语音关联下的对诱词的错误再认率很低。(2)语音关联、形声关联条件下,尽管学习阶段没有出现带有情绪色彩的词,被试仍然对情绪诱词都产生了显著的错误再认。(3)形声关联下对关键诱词的错误再认近于语音关联的两倍,可见概括性的强度影响错误记忆的大小。  相似文献   
823.
Baby media have exploded in the past decade, and children younger than 2 are showing increased use of these baby media. This paper examines the historical evidence of babies’ use of television since the 1950s as well as the various factors that have given rise to the current increase in screen media for babies. We also consider the ubiquitous role of television in American families, the impact of evidence regarding the educational benefits of educational television on preschoolers, and positive parental beliefs about the usefulness of such educational media in preparing young children for schooling. Finally, we examine the theoretical issues of importance for guiding research into the interactions between media exposure and cognitive development, including the role of media in changing the context of children’s development and constraints on the kinds of things babies can learn from screen media. Lastly, we suggest that screen media may indeed be changing the nature of children’s development.  相似文献   
824.
同步放化疗的疗效明显优于单一放化疗和序贯放化疗,但毒副作用的叠加效应可引起严重的并发症,甚至造成死亡。本文从同步放化疗的作用机制和临床实践出发,通过对疗效与毒副作用之间的辩证关系进行具体分析,探讨了如何制定合理的肿瘤治疗决策。  相似文献   
825.
Monkeys were given a choice between cocaine solutions and water under concurrent fixed-ratio reinforcement schedules. The operant response was spout contact. Six rhesus monkeys served as subjects. The cocaine concentration was varied from 0.0125 to 0.8 mg/ml, and the fixed-ratio value was varied from 8 to 128. Cocaine maintained higher response rates than did water over a wide range of conditions. Response rate and number of cocaine deliveries per session were inverted U-shaped functions of concentration. These functions were shifted to the right as the fixed ratio was increased. The number of cocaine deliveries was more persistent as fixed-ratio value was increased when the unit dose was larger rather than smaller. Cocaine consumption was analyzed as a function of unit price (fixed-ratio value divided by cocaine concentration), and unit price accounted for between 77% and 92% of the variance in cocaine consumption for individual monkeys. The current data support the claim that a drug's reinforcing effects increase directly with dose and underscore the need to gather parametric data when examining the effects of experimental manipulations on a drug-reinforced baseline.  相似文献   
826.
本研究考察中文聋生读者利用语境预测性信息促进词汇加工的过程特点。实验采用3(组别:高阅读技能聋生组vs.高阅读技能聋生的能力匹配健听组vs.低阅读技能聋生组)×2(句子背景对目标词的预测程度:高预测vs.低预测)混合设计。结果发现:(1)目标词的左侧词汇上,能力匹配健听组在凝视时间和总注视时间两个指标上可见语境预测性效应,两个聋生组在任何指标上均没有语境预测性效应;(2)目标词上,能力匹配健听组在首次注视时间、凝视时间和总注视时间三项指标上均可见显著的语境预测性效应,高阅读技能聋生组仅在总注视上可见语境预测性效应,低阅读技能聋生的任何眼动指标均没有语境预测性效应。由此可见,聋生在利用语境预测性促进词汇加工方面与健听读者有所差异;相对于低阅读技能聋生,高阅读技能聋生读者识别词汇时能更多地利用语境预测性信息。  相似文献   
827.
Road accident rates among Iranian lorry drivers are considerably high and, according to empirical evidence, aberrant driving behaviours, summed to certain demographic, psycho-social and work-related factors, may explain their accident involvement. Consequently, the main aim of the study was to examine the direct and indirect effects of background variables (i.e. annual mileage, lorry driving experience, demographic and socioeconomic factors) on accident involvement mediated through aberrant driving behaviour among Iranian lorry drivers. A cross-sectional questionnaire survey was conducted in 2012 among 914 lorry drivers in 10 selected provinces in Iran. The 27-item Driver Behaviour Questionnaire (DBQ) was used to measure aberrant driving behaviour. Results from valid observations (n = 785) confirmed a four-factor solution (including ordinary violations, aggressive violations, errors, and lapses) of the DBQ. Errors, ordinary violations and aggressive violations were positively associated with accident involvement. However, lapses were not significantly associated with accident involvement. The results of structural equation modeling (SEM) further showed that, in addition to direct effects of background variables on accident involvement, several variables had indirect effects mediated by three-DBQ factors; ordinary violations, aggressive violations, and errors. Higher age, having more lorry driving experience, having higher educational attainment, and married drivers were indirectly related to less accident involvement. Annual driving mileage and the resting rate of drivers was both directly and indirectly related to accident involvement. Higher income and car ownership were directly related to fewer accidents. Interventions could aim to decrease ordinary violations, aggressive violations and errors among younger, less educated and single lorry drivers. Initiatives targeted to increase the scheduled resting frequency of lorry drivers may also hold promise.  相似文献   
828.
Scholarly discussions on what constitutes Christian humanism in the Renaissance and Reformation periods have typically concentrated on its manifestations before 1536, when Erasmus died. In this period, the old arguments for the reading of the Classics once set out by Basil and Augustine still predominated. Calvin’s teaching on the Fall and the noetic effects of sin, however, provided another basis for the incorporation of pagan thought into Christian learning. Christians who followed Calvin benefited from his precise and comprehensive theological position on the place of worldly knowledge in God’s original creation as a means for justifying their study of the Classics.  相似文献   
829.
基于结构方程模型的有调节的中介效应分析   总被引:1,自引:0,他引:1  
方杰  温忠麟 《心理科学》2018,(2):475-483
有调节的中介模型是中介过程受到调节变量影响的模型。指出了目前有调节的中介效应分析普遍存在的问题:当前有调节的中介效应检验大多使用多元线性回归分析,忽略了测量误差;而基于结构方程模型(SEM)的有调节的中介效应分析需要产生乘积指标,又会面临乘积指标生成和乘积项非正态分布的问题。在简介潜调节结构方程(LMS)方法后,建议使用LMS方法得到偏差校正的bootstrap置信区间来进行基于SEM的有调节的中介效应分析。总结出一个有调节的中介SEM分析流程,并有示例和相应的Mplus程序。文末展望了LMS和有调节的中介模型的发展方向。  相似文献   
830.
王祯  管健 《心理科学进展》2021,29(9):1657-1668
积极刻板印象是对社会群体的积极特质的描述, 以往刻板印象的相关研究主要聚焦于消极刻板印象, 却忽略了对积极刻板印象尤其是其消极影响的探讨。基于此, 分别从种族、性别和年龄这三个方面详细梳理了积极刻板印象的积极影响和消极影响, 并阐述了其产生的条件, 包括积极刻板印象的微妙激活和明显激活、积极刻板印象的准确表述和极端表述、积极刻板印象阐述者的内外群身份、呈现积极刻板印象的文化背景等。未来研究可从集体主义文化、研究领域和对象, 干预方法和消极刻板印象的积极影响等方面进一步探讨。  相似文献   
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