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   2840篇
  免费   269篇
  国内免费   1篇
  3110篇
  2023年   39篇
  2020年   96篇
  2019年   37篇
  2018年   50篇
  2017年   94篇
  2016年   134篇
  2015年   86篇
  2014年   99篇
  2013年   438篇
  2012年   101篇
  2011年   76篇
  2010年   84篇
  2009年   97篇
  2008年   86篇
  2007年   60篇
  2006年   76篇
  2005年   48篇
  2004年   50篇
  2003年   56篇
  2002年   59篇
  2001年   54篇
  2000年   45篇
  1999年   45篇
  1998年   32篇
  1997年   23篇
  1996年   53篇
  1995年   46篇
  1994年   40篇
  1993年   43篇
  1992年   54篇
  1991年   60篇
  1990年   57篇
  1989年   36篇
  1988年   33篇
  1987年   31篇
  1986年   36篇
  1985年   30篇
  1984年   26篇
  1983年   24篇
  1982年   29篇
  1981年   26篇
  1980年   29篇
  1979年   44篇
  1978年   38篇
  1977年   40篇
  1975年   20篇
  1974年   29篇
  1973年   29篇
  1972年   20篇
  1971年   24篇
排序方式: 共有3110条查询结果,搜索用时 15 毫秒
131.
132.
133.
134.
135.
It was suggested that thought changes cognitions to be more consistent with one's initial attitude direction and, therefore, results in attitude polarization. Specifically, it was predicted that polarization would be highest under thought with reality constraints absent, followed by thought with reality constraints present, followed by distration. During the first period of each of two trials, some of the 144 subjects were distracted from thinking about a preselected painting, others thought about the painting while viewing it, and others thought about it in its absence. Subjects were redistributed across the same three conditions for a second period. They then indicated their feelings about the painting. In the original study as well as a partial replication, females behaved as predicted: Thought with reality constraints absent produced the most polarization, followed by thought with reality constraints present, followed by distraction. In both the original study and the replication there was no systematic trend for the males. The theoretical implications of the female results and the sex differences were discussed.  相似文献   
136.
A partial report procedure and a backward masking paradigm were employed to explore lateral asymmetries in components of letter recognition. Stimulus displays were displaced off-centre into the left visual field (LVF) or the right visual field (RVF). Visual field differences in the effect of a delayed backward mask indicated an RVF superiority in the rate of read-out or encoding. Comparison of masked and unmasked full report also yielded estimates of iconic persistence. The persistence of these peripheral displays was surprisingly brief, although it was significantly longer in the LVF (57 ms) than in the RVF (34 ms). Precueing by colour and by location produced a larger partial report advantage in the RVF, reflecting a superiority in selective sampling. With postcueing no partial report effect was obtained at any delay, and this failure was attributed to the briefness of the iconic persistence.  相似文献   
137.
138.
Genetically informative samples can address hereditary and experiential influences on suicide‐related behaviors. The frequency of suicide‐related behaviors was compared in twins from two survivor groups: (1) those whose co‐twins' deaths were suicides (monozygotic [MZ]: n = 47; dizygotic [DZ]: n = 31), and (2) those whose co‐twins' deaths were nonsuicides (MZ: n = 347; DZ: n = 170). The frequency of suicide attempts among suicide survivors was significantly higher in MZ than DZ twins, while the frequency of suicide attempts among nonsuicide twin survivors did not differ between MZ and DZ twins. Twin concordance for suicide attempts more likely reflects a genetic predisposition than a behavioral reaction to the loss.  相似文献   
139.
140.
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