首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   4665篇
  免费   1536篇
  国内免费   439篇
  2024年   6篇
  2023年   28篇
  2022年   51篇
  2021年   141篇
  2020年   159篇
  2019年   420篇
  2018年   333篇
  2017年   444篇
  2016年   450篇
  2015年   385篇
  2014年   364篇
  2013年   630篇
  2012年   378篇
  2011年   304篇
  2010年   337篇
  2009年   308篇
  2008年   290篇
  2007年   242篇
  2006年   239篇
  2005年   206篇
  2004年   148篇
  2003年   148篇
  2002年   142篇
  2001年   115篇
  2000年   89篇
  1999年   58篇
  1998年   24篇
  1997年   27篇
  1996年   13篇
  1995年   10篇
  1994年   13篇
  1993年   9篇
  1992年   18篇
  1991年   17篇
  1990年   10篇
  1989年   7篇
  1988年   2篇
  1987年   4篇
  1986年   8篇
  1985年   8篇
  1984年   9篇
  1983年   6篇
  1982年   9篇
  1981年   11篇
  1980年   8篇
  1977年   2篇
  1975年   2篇
  1973年   2篇
  1968年   1篇
  1966年   1篇
排序方式: 共有6640条查询结果,搜索用时 265 毫秒
121.
Tsai CC  Lin CC 《Adolescence》2004,39(156):725-734
The purpose of this study was to explore adolescents' perceptions and attitudes regarding the Internet, by gender. Data were collected from 636 high school students in Taiwan. It was found that male adolescents perceived the Internet more as a "toy," while female adolescents perceived the Internet more as a "technology," "tool" or "tour." Results indicated that females held more pragmatic views of the Internet, whereas males believed they could obtain more enjoyment from the Internet. In addition, males expressed significantly more positive attitudes than did females on two aspects of the Internet: usefulness and perceived control. However, no significant gender differences were found in terms of the affection and behavior aspects of using the Internet. More importantly, females tended to show higher Internet self-efficacy than did males. It is suggested that gender differences regarding the Internet might be narrowing because female adolescents are acquiring more experience with it.  相似文献   
122.
A problem with interpretations of differences in mathematic achievement between students from Asian countries and those from the United States is the seemingly implicit assumption of the cultural homogeneity of Asian societies. Researchers rarely measure the effects of variables within cultures that are hypothesized to be related to differences across cultures. In the present study, the authors examined the effects of socioeconomic status (SES) and quality of instruction on Chinese students' (1st, 3rd, and 5th grades) understanding of distance, time, and speed. The results indicated that (a) low SES in China can impede the development of children's mathematical cognition and (b) higher SES does not guarantee better performance. The implication is that the gap in mathematical performance between socioeconomically advantaged and disadvantaged children can be narrowed or even eliminated through instructional practices that focus on the systematic training of children's mathematical thinking.  相似文献   
123.
Limits on theory of mind use in adults   总被引:10,自引:0,他引:10  
Keysar B  Lin S  Barr DJ 《Cognition》2003,89(1):25-41
  相似文献   
124.
Inhibition of return to occluded objects   总被引:2,自引:0,他引:2  
Since many visual objects are vulnerable to occlusion, an active process that tracks objects behind occluders confers considerable ecological validity to the visual system. We studied this possibility by testing whether inhibition of return can be observed with occluded objects. In our experiments, two moving objects disappeared or reappeared behind occluders while a cue and a probe were presented. Contrary to the results of a previous study (Tipper, Weaver, Jerreat, & Burak, 1994), responses were consistently delayed for the cued object that was occluded when it was cued (Experiment 1), when it was probed (Experiment 2), or both (Experiment 3). These results suggest that attention can select occluded objects that are out of view. Our findings are in line with prior studies that have demonstrated similar perceptual/attentional effects for occluded objects, as well as for visible objects.  相似文献   
125.
从中德儿童技术创造性跨文化研究结果看性别差异   总被引:2,自引:0,他引:2  
施建农  徐凡  周林  查子秀 《心理学报》1999,32(4):428-434
研究者通过对中德儿童技术创造性跨文化研究结果的综合分析,着重讨论了在差异心理学领域一直十分受人关注的性别差异问题。结果发现,无论是中国儿童还是德国儿童,无论是超常儿童还是常态儿童,性别差异具有基本稳定的趋势,而且,在不同的方面具有不完全一致的表现形式。具体表现为:(1)在数字、图形和实用创造性思维方面,在中国和德国儿童中都没有发现创造性思维方面的性别差异;(2)在心理折叠、学习爱好、技术问题理解和  相似文献   
126.
The visual environment is extremely rich and complex, producing information overload for the visual system. But the environment also embodies structure in the form of redundancies and regularities that may serve to reduce complexity. How do perceivers internalize this complex informational structure? We present new evidence of visual learning that illustrates how observers learn how objects and events covary in the visual world. This information serves to guide visual processes such as object recognition and search. Our first experiment demonstrates that search and object recognition are facilitated by learned associations (covariation) between novel visual shapes. Our second experiment shows that regularities in dynamic visual environments can also be learned to guide search behavior. In both experiments, learning occurred incidentally and the memory representations were implicit. These experiments show how top-down visual knowledge, acquired through implicit learning, constrains what to expect and guides where to attend and look.  相似文献   
127.
128.
As the religious diversity of English towns and cities has grown over the past thirty years due to the establishment in some places of sizeable communities of Hindus, Muslims and Sikhs, as well as other faiths, there have been important changes to local public religion. Traditional civic ceremonies, such as Remembrance Sunday, as well as new forms of civic celebration and commemoration, are now increasingly taking account of the diversity of faiths represented in Britain. This paper examines the consequences of religious diversity for English civic religion by looking at some of the traditions of civic ceremonies in England and at the way in which they have been transformed by the changing religious landscape of towns and cities. The paper also explores some of the dilemmas and questions that have emerged both for the Church of England as well as for the other faith communities when it comes to the design and delivery of civic ceremonies.  相似文献   
129.
汉字词识别过程的形,音,义编码作用的研究   总被引:7,自引:0,他引:7  
本文通过两个实验,采用汉字词形、音、义特征匹配任务,探讨了影响汉字词的形、音、义编码与提取方式的有关因素。实验一发现在速示条件下,对汉字词再认的成绩并不受字词的使用度的影响,反应时无明显变化,而主要受编码加工的深度影响。在形、音、义特征加工中,对音码的加工时间最长,再认的正确率最低;义码的加工时间较短,再认正确率最高;形码的反应时及再认成绩介于音码与义码之间。实验二在非速示条件下也获得了相同的结果。研究结果表明,在汉字词的形、音、义特征中,存在着编码加工深度的差异。  相似文献   
130.
郭秀艳  李林 《心理科学》1999,22(5):439-442
本文研究了短时(1小时内)作业中警戒绩效的一些影响因素。实验采用EP710警戒仪,研究了短时作业中时间、信号密度(信噪比)以及信号显著性(占空比)对警戒绩效的影响。使用的方法为信号检测论。因变量指标为辨别力指数d’和判断标准B。结果发现,作业时间和占空比对警戒绩效没有影响,信噪比对辨别力指数d’有影响但对判断标准B没有影响。结果提示,在短时作业中,信噪比对警戒绩效起显著作用.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号