排序方式: 共有86条查询结果,搜索用时 15 毫秒
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学习和记忆是个体赖以生存和发展的前提,如何取得好的学习和记忆效果是心理学和神经科学关注的重点。近年来,许多研究揭示奖赏可以促进记忆效果,奖赏对记忆的影响逐渐成为心理学和神经科学的热点研究课题。大脑的中脑多巴胺奖赏系统与海马记忆系统在结构和功能上均有关联。奖赏通过编码和巩固阶段以不同机制对记忆效果产生作用:在记忆编码阶段,奖赏会激活奖赏系统、注意控制系统,将更多认知资源分配给奖赏相关信息,从而促进奖赏信息的记忆效果;在记忆巩固阶段,奖赏会促进多巴胺释放,作用于海马对奖赏相关信息的加工,从而促进奖赏信息的记忆效果。未来研究可以关注奖赏对行为影响的复杂模式和内在奖赏对学习记忆的影响等方面。 相似文献
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该研究应用GT和多面Rasch模型对结构化面试数据进行分析,并提出一些建议针对某辅导员招聘面试数据,运用GT从宏观上分析应聘者、考官和项目所带来的总体误差大小,在此基础上,运用多面Rasch模型从微观上进一步探查考官严厉度、应聘者能力差异、项目难易度及侧面偏差.结果表明:1)GT分析表明应聘者产生的变异较大(90.65%),说明面试可靠性较高,且当考官数为2时可靠性已较好.2)多面Rasch模型分析出了各侧面效应中的非拟合因素及交互效应中的偏差因素,表明面试误差主要来自考官间严厉度的差异及其自身一致性的不稳定。将GT与多面Rasch模型相结合分析面试数据不仅能测查出评价过程各方面的问题因素,并能更好地作整体把握。 相似文献
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研究采用自行设计的图形材料,考察了不同干扰刺激(纯靶刺激;干扰刺激与靶刺激数量相同;干扰刺激是靶刺激数量的2倍)对成人完成数量估计任务的影响.30名硕士生参加了本实验.行为数据和口头报告资料分析显示:1)反应时随数量估计任务难度的增加而不断增长;2)干扰刺激越多,任务越复杂,成人估计的误差率越高,准确性越低;3)成人存在多重数字表征形式,完成数量估计任务时主要采用线性表征,但随着干扰刺激物的增加,运用对数表征的趋势愈加明显. 相似文献
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Heinicke BE Paxton SJ McLean SA Wertheim EH 《Journal of abnormal child psychology》2007,35(3):379-391
This study evaluated a targeted intervention designed to alleviate body image and eating problems in adolescent girls that
was delivered over the internet so as to increase access to the program. The program consisted of six, 90-minute weekly small
group, synchronous on-line sessions and was facilitated by a therapist and manual. Participants were 73 girls (mean age=14.4
years, SD=1.48) who self-identified as having body image or eating problems and were randomly assigned to an intervention group (n=36) (assessed at baseline, post-intervention and at 2- and 6-months follow-up) or a delayed treatment control group (n=37) (assessed at baseline and 6–7 weeks later). Clinically significant improvements in body dissatisfaction, disordered eating,
and depression were observed at post-intervention and maintained at follow-up. Internet delivery was enthusiastically endorsed.
The program offers a promising approach to improve body image and eating problems that also addresses geographic access problems. 相似文献
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Laurent Auclair Eric Siéroff 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》2002,55(2):445-463
Three experiments studied the influence of spatial attention on familiar and unfamiliar letter string identification. Siéroff and Posner's (1988) cueing procedure was used: A cue indicated in advance either the beginning (left) or the end (right) of a foveally presented letter string that participants were instructed to read aloud. Results showed that the precue had a stronger influence on pseudoword than on word identification. Similar results were obtained when participants were instructed to report the identity of the cue or not. For pseudowords, a cueing effect was obtained regardless of length (6, 8, and 10 letters), whereas only 10-letter words showed such an effect, though to a lesser degree than pseudowords of the same length. However, results showed that shorter words were also influenced by the cue location when the exposure duration was reduced. Results are compatible with an early role of spatial attention in letter string processing, but they also suggest that the lexical status of a letter string can directly influence the distribution of attention before the identification process is completely achieved. Although orienting of spatial attention seems heavily involved in a pseudoword identification, some spatial attention mechanism could also take place in the case of familiar words. The results are discussed within two theoretical frameworks concerning the involvement of spatial attention in word identification: The "replacement" theory and the "redistribution" theory. 相似文献
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Innovation through creativity is an important factor in the success and competitive advantage of organizations. Theory and research suggest that both leadership and organizational climate have important consequences for individual creativity. However, researchers have rarely considered the interactive effects of leadership and organizational climate. This study taking a “Substitute for Leadership” perspective, develops and tests the idea that empowerment climate affect the relationship between leadership and followers' creative performance. Data were collected from 93 teams, including 465 team members and 93 team supervisors, in a large multinational company based in China. Hierarchical linear modelling was used to examine the hypothesized cross-level model. As expected, transformational leadership and team empowerment climate were positively related to subordinates' creative performance and transactional leadership was negatively related to subordinates' creative performance. In addition, the relationship between leadership and subordinates' creative performance was moderated by team empowerment climate. The study resulted in the implication of several major variables for explaining individual creativity in the Chinese context. 相似文献
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