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   4051篇
  免费   207篇
  国内免费   3篇
  2023年   50篇
  2022年   56篇
  2021年   84篇
  2020年   128篇
  2019年   116篇
  2018年   186篇
  2017年   187篇
  2016年   180篇
  2015年   133篇
  2014年   148篇
  2013年   446篇
  2012年   265篇
  2011年   216篇
  2010年   131篇
  2009年   127篇
  2008年   165篇
  2007年   169篇
  2006年   122篇
  2005年   113篇
  2004年   92篇
  2003年   81篇
  2002年   69篇
  2001年   71篇
  2000年   75篇
  1999年   48篇
  1998年   27篇
  1997年   30篇
  1996年   19篇
  1995年   19篇
  1994年   18篇
  1992年   23篇
  1991年   23篇
  1990年   41篇
  1989年   32篇
  1988年   20篇
  1987年   33篇
  1986年   25篇
  1985年   27篇
  1984年   28篇
  1983年   23篇
  1981年   17篇
  1979年   35篇
  1976年   18篇
  1975年   24篇
  1974年   28篇
  1973年   22篇
  1972年   19篇
  1971年   23篇
  1970年   23篇
  1968年   20篇
排序方式: 共有4261条查询结果,搜索用时 15 毫秒
81.
82.
83.
RESOLUTION OF LEXICAL AMBIGUITY BY EMOTIONAL STATE   总被引:2,自引:0,他引:2  
Abstract— The role of emotion in the resolution of lexical ambiguity was investigated. Happy and sad subjects listened to a list of words that included homophones that had happy and neutral meanings (eg., presents-presence ) and homophones that had sad and neutral meanings (eg., mourning-morning ). Words were presented every 3 s, and subjects wrote down the words, as they heard them (Meaning could be identified by spelling in all cases). An interaction between emotional state and homophone category was observed. Sad subjects were more likely to write down sad meanings than were happy subjects. Results are discussed with reference to the literatures on both emotion and lexical access.  相似文献   
84.
A compelling impression of movement, which is perceptually indistinguishable from a real displacement, can be elicited by patterns containing no spatially displaced elements. An apparent oscillation, w-movement, was generated by a stationary pattern containing a large number of horizontal pairs of spatially adjacent dots modulated in brightness. The observer’s task was to adjust the perceived amplitude of the w-motion to match the amplitude of a real oscillation. All of the data can be accounted for by a simple rule: If the relative change in the luminance,W = αL/L, between two adjacent stationary dots is kept constant, the distance over which these dots appeared to travel in space comprises a fixed fraction of the total distance by which they are separated. The apparent amplitude of the w-motion increases strictly in proportion with luminance contrast, provided that the contrast is represented in the motion-encoding system by a rapidly saturating compressive Weibull transformation. These findings can be explained in terms of bilocal motion encoders comparing two luminance modulations occurring at two different locations.  相似文献   
85.
Two experiments are reported addressing the preparation and initiation of movements with equal or unequal timing properties for both hands. Temporal coordination was examined in two movement tasks: one in which both hands performed the movements simultaneously (simultaneous aiming task) and one in which only one alternative of two possible movements was executed (choice aiming task). For each task a different group of subjects was used. Besides the timing relationships between both movements, the effects of preparation interval (1, 3, and 5 s), the average velocity (7, 14, 17.5, and 70 cm/s), the presence of advance information about the required velocity of the movement(s), and practice were investigated. Based on the common- and the specific-timing notions, distinct hypotheses were tested as to the effects of the variables on the temporal coordination as revealed by reaction time. A main result was that the effects of timing differences between the hands was task specific. For the choice task the data are in agreement with the common-timing notion of coordination, i. e., only one timing demand at a time can be prepared, whereas in the simultaneous task evidence was obtained for the specific-timing notion, i. e., independent preparation and initiation of different timing properties for the hands. However, it is argued that the results of the choice task probably do not reflect a general inability to prepare movements of different timing requirements for both hands, but is related to a task-specific strategy of selective preparation.  相似文献   
86.
The article discusses two basic paradigms of western educational theory, namely the concept of “influence” and the concept of “development”. Two historical contextes are analyzed, John Locke's theory of human learning and Jean-Jacques Rousseau's theory of natural development. Both theories are rejected in favour of a position beyond “influence” and “development”. This position of a theory of education (Erziehung) is marked with the term “moral communication”.  相似文献   
87.
88.
Rüdiger Schreyer 《Topoi》1985,4(2):181-186
The Enlightenment regarded language as one of the most significant achievements of man. Consequently inquiries into the origin and development of language play a central role in eighteenth-century moral philosophy. This new science of man consciously adopts the method of analysis and synthesis used in the natural sciences of the time. In moral philosophy, analysis corresponds to the search for the basic principles of human nature. Synthesis is identified with the attempt to interpret all artificial achievements of man (arts, sciences and institutions) as the effect of these principles and of man's physical and social environment - an attempt known as theoretical history. The type of explanation envisaged by theoretical historians is based on the principle of causality. It consists in a genetic reconstruction of the social phenomenon under investigation. Inquiries into the origin of language follow this pattern of explanation. They form part of theoretical history and thus represent a major aspect of the eighteenth-century scientific study of man.  相似文献   
89.
The antidepressants desipramine and imipramine were compared within the framework of a multiclinical study performed under the conditions of a controlled clinical experiment. There has been found a time-different remission of affective symptoms, which was not detectable for the inhibition of drive. The tachythymoleptic action of desipramine is discussed with reference to these results. Evaluation of the possibility of controlling affects shows different ranges of activity of desipramine and imipramine, with desipramine influencing especially negative psychoenergetic symptoms in the area of drives and emotions and imipramine, restrictive symptoms in addition to differential phenomena of the psychomotor expression.  相似文献   
90.
A group of 11 women entering sex therapy for treatment of low arousal, and a comparison group of 11 women experiencing no arousal deficit, viewed an erotic film, listened to an erotic audiotape, and engaged in sexual fantasy during two experimental sessions. Session I occurred pre-treatment for the low arousal group. Session II occurred post-treatment. The adequate arousal group was tested at comparable points in time. Sexual arousal was measured subjectively by self-rating and physiologically by a vaginal photoplethysmograph. Contrary to expectation, the two groups showed equivalent significant increases in physiological response during the erotic stimuli in both sessions. However, the adequate arousal group rated subjective arousal significantly higher than the low arousal group in Session I, while no difference was found between the groups in Session II. Significant correlations were present between physiological response and ratings of several affective reactions to the audiotape, though few significant correlations were found between physiological and subjective sexual arousal measures. These data indicate a discrepancy between genital responses and ratings of sexual arousal for which several interpretations are offered.  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