全文获取类型
收费全文 | 23931篇 |
免费 | 2192篇 |
国内免费 | 17篇 |
出版年
2023年 | 160篇 |
2022年 | 190篇 |
2021年 | 354篇 |
2020年 | 489篇 |
2019年 | 835篇 |
2018年 | 949篇 |
2017年 | 1024篇 |
2016年 | 994篇 |
2015年 | 777篇 |
2014年 | 845篇 |
2013年 | 2914篇 |
2012年 | 1373篇 |
2011年 | 1362篇 |
2010年 | 959篇 |
2009年 | 832篇 |
2008年 | 1168篇 |
2007年 | 1013篇 |
2006年 | 977篇 |
2005年 | 902篇 |
2004年 | 740篇 |
2003年 | 772篇 |
2002年 | 738篇 |
2001年 | 396篇 |
2000年 | 392篇 |
1999年 | 318篇 |
1998年 | 237篇 |
1997年 | 245篇 |
1996年 | 222篇 |
1995年 | 196篇 |
1994年 | 185篇 |
1993年 | 178篇 |
1992年 | 185篇 |
1991年 | 183篇 |
1990年 | 167篇 |
1989年 | 151篇 |
1988年 | 117篇 |
1987年 | 140篇 |
1986年 | 143篇 |
1985年 | 181篇 |
1984年 | 179篇 |
1983年 | 153篇 |
1982年 | 144篇 |
1981年 | 153篇 |
1980年 | 135篇 |
1979年 | 125篇 |
1978年 | 129篇 |
1977年 | 114篇 |
1976年 | 121篇 |
1975年 | 105篇 |
1974年 | 119篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
231.
232.
233.
David A. T. Siddle A. R. Nicol R. H. Foggitt 《Integrative psychological & behavioral science》1972,7(4):226-231
Overextinction of the GSR component of the orienting response was examined in a sample of 68 socially disturbed adolescents. Continued stimulus repetition beyond the point of habituation resulted in GSR return after 50–60 stimulus presentations. However, division of Ss into sleep and non-sleep groups using behavioral and self-report criteria, failed to support Sokolov’s (1963) notion that overextinction is accompanied by drowsiness. A possible explanation of these results is discussed. 相似文献
234.
The asymptotic distributions of response probabilities in the Audley-Jonckheere learning model, as applied to the two-choice learning situation, are described for (1) the experimenter-controlled events model, (2) the subject-controlled events model, and (3) the experimenter-subject-controlled events model. 相似文献
235.
236.
237.
This article describes an electronic switch that allows presentation of sine wave stimuli without the often undesirable transient thump, thud, or click usually caused by ordinary electromechanical switches. 相似文献
238.
An electronic aid to assist in administering concept-identification problems with floating solutions is described. Digital circuitry generates all combination pairs from four selection switches, presents a particular comparison of these pairs, and, on command of the E, eliminates selected pairs from future comparisons. Each comparison is designed to minimize the information fed back to the S. The apparatus is used to administer and evaluate performance on conjunctive and disjunctive problems that are matched for information gain. 相似文献
239.
Freedom from restrictive assumptions and ease of psychological interpretation are two basic criteria for a satisfactory measure of recognition performance. The A-index (Brown, 1965a) comes close to fulfilling these criteria. It is based on the proportion of wrong choices rejected in a multi-choice test as revealed by the number of choices required to select the correct choice. It can be transformed into the d' measure of signal detection theory (SDT) if the standard assumptions of this theory hold, but not in general. Two experiments on the recognition of words-in-noise are described. In the first there were 3, 5, 8 or 16 choices. They were typed on a card which was displayed to the listener during the presentation of a word. On both measures 5-, 8- and 16-choice recognition did not differ significantly, while 3-choice recognition was slightly, but significantly, superior. The second experiment concerned the effect of delaying the display of the card until 2 sec. after presentation. No evidence for an effect was obtained. In both experiments, there was suggestive but not conclusive evidence that the d' measure tended to overestimate recognition efficiency. 相似文献
240.
M. B. Sterman J. J. Lynch M. T. Orne D. Paskewitz J. Costello N. Nicolov O. Diankov M. Popova E. Tsvetanska Robert G. Grenell J. J. Izquierdo V. H. Mark Joseph Germana N. Zill William P. Paré Joseph E. O. Newton George C. Offutt Walter Ehrlich Joseph E. D. Newton Julij Tosef J. Perez-Cruet Chester R. Wilpizeski John F. Lontz Andrew Livingston Joseph W. Cullen Samuel A. Corson Herman R. Weed Elizabeth O. Corson O. D. Murphree Paul N. Morgan Ruth Jarman J. Antal T. A. Ban J. V. Ananth H. E. Lehmann A. Ulric Moore Richard H. Barnes Wilson G. Pond 《Integrative psychological & behavioral science》1970,5(3):185-193