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171.
Xiaoyan Angela Qin Wilma Koutstaal Stephen A. Engel 《Attention, perception & psychophysics》2014,76(4):914-930
Familiar items are found faster than unfamiliar ones in visual search tasks. This effect has important implications for cognitive theory, because it may reveal how mental representations of commonly encountered items are changed by experience to optimize performance. It remains unknown, however, whether everyday items with moderate levels of exposure would show benefits in visual search, and if so, what kind of experience would be required to produce them. Here, we tested whether familiar product logos were searched for faster than unfamiliar ones, and also familiarized subjects with previously unfamiliar logos. Subjects searched for preexperimentally familiar and unfamiliar logos, half of which were familiarized in the laboratory, amongst other, unfamiliar distractor logos. In three experiments, we used an N-back-like familiarization task, and in four others we used a task that asked detailed questions about the perceptual aspects of the logos. The number of familiarization exposures ranged from 30 to 84 per logo across experiments, with two experiments involving across-day familiarization. Preexperimentally familiar target logos were searched for faster than were unfamiliar, nonfamiliarized logos, by 8 % on average. This difference was reliable in all seven experiments. However, familiarization had little or no effect on search speeds; its average effect was to improve search times by 0.7 %, and its effect was significant in only one of the seven experiments. If priming, mere exposure, episodic memory, or relatively modest familiarity were responsible for familiarity’s effects on search, then performance should have improved following familiarization. Our results suggest that the search-related advantage of familiar logos does not develop easily or rapidly. 相似文献
172.
作为灵魂不灭思想和祖宗崇拜的产物,墓葬自产生以来便得到世人的重视,这在诸子尤其是儒家孝悌观念影响深厚的汉代社会尤其如此。汉代墓室建筑的形制、构造、装饰特征等,反映了人们对于死后世界的一种认识,表达的是生者对死者的尊重和追思,反映了汉代社会生活中的等级观念、生死观念和孝敬观念。 相似文献
173.
Measures of agreement are used in a wide range of behavioral, biomedical, psychosocial, and health-care related research to
assess reliability of diagnostic test, psychometric properties of instrument, fidelity of psychosocial intervention, and accuracy
of proxy outcome. The concordance correlation coefficient (CCC) is a popular measure of agreement for continuous outcomes.
In modern-day applications, data are often clustered, making inference difficult to perform using existing methods. In addition,
as longitudinal study designs become increasingly popular, missing data have become a serious issue, and the lack of methods
to systematically address this problem has hampered the progress of research in the aforementioned fields. In this paper,
we develop a novel approach to tackle the complexities involved in addressing missing data and other related issues for performing
CCC analysis within a longitudinal data setting. The approach is illustrated with both real and simulated data. 相似文献
174.
视觉的悖论是由"看"与"被看"、权力和权利、形式设计与意义关怀等相反相成的关涉组成的混合体."看"与"被看"既反映出一种主客体之间的张力关系,也逐渐表现出其权力变化的趋向.通过权力和权利作为视觉伦理关系的两极,可以清晰地看到隐藏在视觉背后的意识形态性.视觉的形式设计与意义关怀的失衡必然带来视觉互动过程中的伦理偏差,过度强调视觉的形式设计必然会影响到视觉本身的传达效果,消解视觉的意义关怀所在,也会误导人们的价值观念.在视觉的伦理关涉和悖论后面,我们更需要寻找到实质为人与自然、人与自身、人与人、人与社会之间关系的平衡. 相似文献
175.
Jun Lu Dong-mei Wu Bin Hu Wei Cheng Yuan-lin Zheng Zi-feng Zhang Qin Ye Shao-hua Fan Qun Shan Yong-jian Wang 《Neurobiology of learning and memory》2010,93(2):157-164
Previous evidence showed that administration of d-galactose (d-gal) increased ROS production and resulted in impairment of cholinergic system. Troxerutin, a natural bioflavonoid, has been reported to have many benefits and medicinal properties. In this study, we evaluated the protective effect of troxerutin against d-gal-induced impairment of cholinergic system, and explored the potential mechanism of its action. Our results displayed that troxerutin administration significantly improved behavioral performance of d-gal-treated mice in step-through test and morris water maze task. One of the potential mechanisms of this action was decreased AGEs, ROS and protein carbonyl levels in the basal forebrain, hippocampus and front cortex of d-gal-treated mice. Furthermore, our results also showed that troxerutin significantly inhibited cholinesterase (AchE) activity, increased the expression of nicotinic acetylcholine receptor alpha 7 (nAchRα7) and enhanced interactions between nAchRα7 and either postsynaptic density protein 95 (PSD95) or N-methyl-d-aspartate receptors subunit 1 (NMDAR1) in the basal forebrain, hippocampus and front cortex of d-gal-treated mice, which could help restore impairment of brain function. 相似文献
176.
研究旨在探索中国文化背景下心理健康素养干预的有效性,以及心理健康素养的提升对专业心理求助意愿、心理健康和幸福感的影响。研究采用实验组对照组前后测设计。结果表明:1.基于网络教育的干预方法能够有效提升心理健康素养,进而促进专业心理求助意愿,改善心理健康状况。但是对大学生的幸福感没有产生明显影响; 2.心理健康素养可以通过专业心理求助意愿分别影响心理健康状况和幸福感,且专业求助意愿和心理健康在心理健康素养和幸福感之间起着完全链式中介作用。总的来说,心理健康素养的有效提升不仅可以改善专业心理求助意愿,提高人们的心理健康水平,还可能增添生活幸福感。 相似文献
177.
178.
从19世纪末开始,伴随着日本军国主义对中国侵略活动的深入,日本当局将其侵略、渗透的魔掌伸向我国西藏地区.其中日本佛教净土真宗东、西本愿寺派也参与其中,以到西藏"探险"、"求经"以及建立佛教联系等为名,从事了一系列渗透我国西藏的活动,为日本帝国主义的侵略体制服务,发挥了配合与协助侵略的作用. 相似文献
179.
This study linked emotion to the theoretical assumptions of the face‐negotiation theory and probed the critical role of anger, compassion, and guilt in understanding the complex pathways of their relationships with self‐construal, face concerns, and conflict styles in U.S. and Chinese cultures. Results showed that anger was associated positively with independent self‐construal, self‐face concern, and the competing style, and compassion was associated positively with interdependent self‐construal, other‐face concern, and the integrating, compromising, and obliging styles. Guilt was related positively with interdependent self‐construal and the obliging style in the United States, and with interdependent self‐construal and the avoiding style in China. Overall, emotion mediated the effects of self‐construal and face concerns on conflict styles in both cultures, but cultural differences also emerged. 相似文献
180.
喂养不当是导致婴幼儿生长发育不良及营养障碍性疾病的主要原因。婴幼儿的喂养问题在我国农村地区尤为突出,主要表现在喂养方式、添加辅食和喂养行为等方面。文章重点围绕上述3个方面展开分析、提出对策,以期为政府决策、儿童保健人员及喂养者提供参考。 相似文献