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   5869篇
  免费   79篇
  国内免费   2篇
  2020年   22篇
  2019年   35篇
  2018年   152篇
  2017年   129篇
  2016年   229篇
  2015年   109篇
  2014年   56篇
  2013年   181篇
  2012年   313篇
  2011年   297篇
  2010年   46篇
  2009年   55篇
  2008年   91篇
  2007年   77篇
  2006年   79篇
  2005年   1356篇
  2004年   705篇
  2003年   472篇
  2002年   161篇
  2001年   58篇
  2000年   33篇
  1999年   48篇
  1997年   29篇
  1995年   19篇
  1994年   27篇
  1992年   45篇
  1991年   57篇
  1990年   72篇
  1989年   58篇
  1988年   39篇
  1987年   63篇
  1986年   47篇
  1985年   44篇
  1984年   44篇
  1983年   35篇
  1981年   19篇
  1979年   45篇
  1978年   27篇
  1976年   26篇
  1975年   46篇
  1974年   48篇
  1973年   50篇
  1972年   43篇
  1971年   47篇
  1970年   27篇
  1969年   29篇
  1968年   29篇
  1967年   27篇
  1966年   26篇
  1965年   19篇
排序方式: 共有5950条查询结果,搜索用时 15 毫秒
41.
Attributional retraining: a review   总被引:18,自引:0,他引:18  
  相似文献   
42.
43.
Conclusion I shall conclude with a methodological moral. I have tried to show that there are several fundamentally different kinds of fear. One is a pure propositional attitude, one is partially a bodily state, and one is a relation between a person and a nonpropositional object. Other emotions come in similar varieties, such as hope and happiness, but with significant differences. The state of happiness, for example, does not entail any particular bodily state or feeling. So one lesson is this: it is hard to generalize about the emotions. Further detailed, analytical studies of particular emotions are needed before a general theory of the emotions can be fruitfully attempted.  相似文献   
44.

Two experiments investigated the role of lithium-mediated environmental conditioning on instrumental performance. Experiment 1 demonstrated that a novel taste consumed in one arm of a T maze prior to lithium-induced toxicosis reduced performance in this environment whereas similar aversions conditioned in the home cage failed to alter maze performance. Experiment 2 showed that maze performance in a straight alleyway was decremented during extinction only in a group that actually traversed the alley prior to drinking saccharin and receiving lithium injections. This demonstrated that the instrumental decrement observed in Experiment 1 was due not only to the presence of an unpalatable flavor in the goalbox during the test.

  相似文献   
45.

Galef and his colleagues have repeatedly shown that one rat may transfer information regarding the type of food it has consumed to other conspecifics. Such experiments typically have been conducted in wire-mesh cages or a wooden maze. The present experiments sought to extend this paradigm to the open-field foraging situation having six food patches to choose from. Following interaction with a demonstrator that had consumed either a cocoa or a cinnamon diet, single observers (Experiment 1) were tested in the foraging situation. Food-consumption scores indicated that observers consumed significantly more of their specific demonstrator’s diet than a second diet that was available also. Experiment 2 involved the simultaneous testing of two observers in the foraging laboratory. In Experiment 3 two observers were once again tested, but each had been provided a different food-type message prior to foraging. Positive results, mirroring those of Experiment 1, were obtained in both Experiments 2 and 3. The results of these three experiments underscore the robustness of this phenomenon and its generalizability to other testing conditions.

  相似文献   
46.
47.
48.
The purpose of this paper is to present a new electromagnetic device which uses alternating magnetic fields for tracking movements of multiple points inside and outside the vocal tract. It is biologically safe, noninvasive, it does not interfere with speech movements, allows for multiple recording in the same subject, and for easy collection of large amounts of data. It is especially suitable for evaluation of patients with speech motor impairments.  相似文献   
49.
50.
A report on the clinical testing of the lithium-retard medicament Contemnol (Spofa). It details the way lithium-retard treatment is objectively and subjectively superior to the earlier and still current general lithium treatment.  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