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   1228篇
  免费   40篇
  2020年   12篇
  2019年   17篇
  2018年   21篇
  2017年   23篇
  2016年   32篇
  2015年   13篇
  2014年   17篇
  2013年   147篇
  2012年   40篇
  2011年   37篇
  2010年   35篇
  2009年   10篇
  2008年   38篇
  2007年   34篇
  2006年   41篇
  2005年   49篇
  2004年   52篇
  2003年   37篇
  2002年   39篇
  2001年   15篇
  2000年   11篇
  1999年   10篇
  1998年   14篇
  1997年   16篇
  1996年   16篇
  1994年   13篇
  1993年   16篇
  1992年   11篇
  1991年   14篇
  1990年   18篇
  1989年   11篇
  1988年   13篇
  1987年   14篇
  1986年   16篇
  1985年   19篇
  1984年   24篇
  1983年   14篇
  1982年   19篇
  1981年   25篇
  1980年   19篇
  1979年   16篇
  1978年   20篇
  1977年   14篇
  1976年   19篇
  1975年   18篇
  1974年   21篇
  1973年   13篇
  1971年   9篇
  1970年   10篇
  1967年   10篇
排序方式: 共有1268条查询结果,搜索用时 31 毫秒
61.
In Experiment 1, rats were given a 1-pellet reward for 48 preshift trials. During a subsequent 20-trial postshift phase, one group was shifted to a 12-pellet reward on Trial 1, a second was shifted on Trial 11, and a third was given 1 more pellet each trial and then 12 pellets for the last 10 trials. The speeds of all three groups increased to a level above that of a control group given a 12-pellet food reward throughout training (positive contrast). In experiment 2, rats were shifted from 1 to 12 pellets either gradually or abruptly following either abbreviated training (9 trials) or extended training (20 trials). One group of control subjects received 12 pellets throughout training. The results revealed a positive contrast effect for gradually shifted subjects following extended training but not following abbreviated training. The abrupt shift procedure produced positive contrast following abbreviated training but only a marginal effect following extended training. These results indicate that, contingent upon the amount of preshift training, either gradual or abrupt reward increases may produce positive contrast.  相似文献   
62.
Subjects were monaurally presented with consonant—vowel syllables to the right or left ear, with or without simultaneous noise to the other ear. The subject's task on each trial was to indicate whether or not the item presented was the target item /ba/. A right-ear advantage in reaction time was obtained: 14 msec for target items, 6 msec for nontarget items. The size of this effect was comparable in the presence vs. absence of competing noise. No consistent individual differences were found in the size of the right-ear advantage for this task, although such differences were obtained in a dichotic-perception pretest.It is argued that data of this type do not permit inferences about the use of particular ear/hemisphere neural pathways.  相似文献   
63.
64.
65.
66.
67.
Despite a body of confessions research that is generally accepted in the scientific community, courts often exclude experts on the ground that such testimony would not assist the jury, which can use its common sense. To examine whether laypeople know the contents of expert testimony on confessions, we asked 151 lay participants to indicate their beliefs about 30 confession‐related statements used in a recent survey of 87 confession experts (Kassin et al., American Psychologist, 2018, 73, 63–80). Participants agreed with experts on only 10 of the 30 propositions, suggesting that much of the psychology of confessions is not common knowledge and that expert testimony can assist the trier of fact.  相似文献   
68.
69.
70.
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