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   40059篇
  免费   1580篇
  国内免费   18篇
  2020年   511篇
  2019年   592篇
  2018年   833篇
  2017年   907篇
  2016年   912篇
  2015年   643篇
  2014年   776篇
  2013年   3217篇
  2012年   1423篇
  2011年   1374篇
  2010年   913篇
  2009年   858篇
  2008年   1241篇
  2007年   1253篇
  2006年   1083篇
  2005年   963篇
  2004年   905篇
  2003年   841篇
  2002年   857篇
  2001年   1215篇
  2000年   1166篇
  1999年   903篇
  1998年   396篇
  1997年   389篇
  1996年   357篇
  1995年   363篇
  1994年   353篇
  1993年   353篇
  1992年   745篇
  1991年   656篇
  1990年   725篇
  1989年   626篇
  1988年   649篇
  1987年   617篇
  1986年   624篇
  1985年   556篇
  1984年   519篇
  1983年   497篇
  1979年   586篇
  1978年   402篇
  1975年   467篇
  1974年   513篇
  1973年   542篇
  1972年   409篇
  1971年   402篇
  1970年   366篇
  1969年   410篇
  1968年   488篇
  1967年   437篇
  1966年   363篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
131.
132.
The startle probe response: a new measure of emotion?   总被引:17,自引:0,他引:17  
  相似文献   
133.
The Family System Functioning (FSF) scale is a new instrument for measuring dimensions of the intrafamilial environment thought to be important in recovery from major psychiatric illness. Modest statistical correlations were obtained when FSF ratings of laboratory-based family interactions were compared with researcher-guided therapist ratings of FSF based upon the family's behavior in family therapy sessions during the subsequent month. The data from these two settings provide support for the validity of some of the scales. Because of the modest size of the correlations, however, behavior in the laboratory setting may not always be an accurate indicator of how the family will behave in the early weeks of family therapy.  相似文献   
134.
135.
136.
Context and structure in conceptual combination   总被引:8,自引:0,他引:8  
  相似文献   
137.
Processing resources and age differences in working memory   总被引:1,自引:0,他引:1  
This study investigated the performance of young and old subjects on a modified version of the working memory task developed by Baddeley and Hitch (1974). Subjects were required to verify a set of sentences of varying complexity while they repeated aloud zero, two, or four words. The older subjects took longer to verify the sentences, especially when the sentences were grammatically complex, but the effect of concurrent memory load on verification latency was the same in both groups. These results cast doubt on the notion that there is an age-related decline in one general pool of processing resources. They also suggest that older people have greater difficulty with the active processing aspects, rather than with the passive holding aspects, of working memory tasks.  相似文献   
138.
Contextual stimuli from one category increase the rated similarity of stimuli from a second category. In Experiment 1, associates of one of the members of pairs of target words increased the rated similarity of the members slightly more than did much less similar contextual stimuli. In Experiment 2, contextual category names and good exemplars increased the rated similarity of pairs of poor to medium target exemplars and were also rated as more similar to these targets than the targets were to each other. In both cases, the category names resulted in the stronger effect. This ability of contextually similar stimuli to increase rated similarity opposes the distance-density and averaging-judgmental theories of the effect of context on similarity. However, the theory that a positive association exists between the perceived similarity of stimuli and the strength of the category to which they belong explains how both contextually dissimilar and contextually similar stimuli can increase rated similarity.  相似文献   
139.
Hindsight bias: An interaction of automatic and motivational factors?   总被引:1,自引:0,他引:1  
If subjects are asked to recollect a former response after having been informed about the correct response, their recollection tends to approach the correct response. This effect has been termedhindsight bias. We studied hindsight bias in an experiment requiring numerical responses to almanac-type questions for physical quantities. We varied (1) the time at which the correct information was provided, (2) the encoding of the original responses by asking/not asking subjects to give a reason for the respective response, and (3) the motivation to recall correctly. We found that hindsight is less biased if reasons are given and if the correct information is provided at an earlier time. Motivation had only interactive effects: (1) With high motivation to recall correctly, the time the correct information was provided had no influence. (2) With reasons given, the variation of motivation showed no effect. These results rule out purely motivational and purely automatic explanations.  相似文献   
140.
The concept of heightened resilience or invulnerability in young profoundly stressed children is developed in terms of its implications for a psychology of wellness and for primary prevention in mental health. Relevant literature is reviewed, a skeletal model for studying resilience is outlined, and needed research directions are considered. The latter include expansion of the construct's nomological definitional net, inquiry into the antecedents and determinants of resilience, and the application of such generative information to frame preventive interventions for young, profoundly stressed children.  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