全文获取类型
收费全文 | 29259篇 |
免费 | 1185篇 |
国内免费 | 16篇 |
出版年
2020年 | 327篇 |
2019年 | 469篇 |
2018年 | 603篇 |
2017年 | 567篇 |
2016年 | 622篇 |
2015年 | 430篇 |
2014年 | 595篇 |
2013年 | 2754篇 |
2012年 | 1020篇 |
2011年 | 1101篇 |
2010年 | 659篇 |
2009年 | 707篇 |
2008年 | 959篇 |
2007年 | 971篇 |
2006年 | 968篇 |
2005年 | 833篇 |
2004年 | 817篇 |
2003年 | 815篇 |
2002年 | 794篇 |
2001年 | 686篇 |
2000年 | 725篇 |
1999年 | 547篇 |
1998年 | 392篇 |
1997年 | 361篇 |
1996年 | 355篇 |
1995年 | 325篇 |
1994年 | 295篇 |
1993年 | 288篇 |
1992年 | 411篇 |
1991年 | 428篇 |
1990年 | 425篇 |
1989年 | 388篇 |
1988年 | 353篇 |
1987年 | 349篇 |
1986年 | 365篇 |
1985年 | 413篇 |
1984年 | 345篇 |
1983年 | 340篇 |
1982年 | 280篇 |
1981年 | 287篇 |
1980年 | 273篇 |
1979年 | 352篇 |
1978年 | 328篇 |
1977年 | 257篇 |
1975年 | 309篇 |
1974年 | 344篇 |
1973年 | 348篇 |
1972年 | 278篇 |
1968年 | 276篇 |
1967年 | 265篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
981.
D F Fisher R A Monty 《Journal of experimental psychology. Human learning and memory》1978,4(2):158-164
Recognition memory for matrices of 0s and 1s was examined as a function of the number of elements (complexity) and density of those elements within the matrix. It was found that with greater density and lesser complexity, recognition performance improved. This result contradicts an earlier finding of Green and Purohit, who concluded that the more complicated matrices led to better performance. The present study suggests that their conclusion was erroneous and stemmed from failure to control the physical parameters of density and number of elements in the matrix. Implications for the general problem of recognition memory and eye movements are discussed. 相似文献
982.
983.
The Rescorla-Wagner model: losses in associative strength in compound conditioned stimuli 总被引:1,自引:0,他引:1
This series of experiments demonstrated that compound conditioned stimuli (CSs) highly conditioned in isolation lose conditioned response strength when compound-CS-unconditioned stimulus (US) pairings are given. This loss in conditioned responding was a positive function of the number of compound-CS-US pairings and was greater for the more salient stimulus. Finally, if a previously neutral stimulus was compounded with two previously conditioned cues, the neutral stimulus could acquire conditioned inhibitory properties with only compound-CS-US pairings. These results provide support for some aspects of the Rescorla-Wagner model. 相似文献
984.
Private self-consciousness consists of attending to one's thoughts, feelings, and motives. Public self-consciousness consists of attending to oneself as a social object. The effect of dispositional self-consciousness on the accuracy of self-reports was studied in research on aggression. High- and low-private self-conscious subjects rated their own aggressiveness. Several weeks later their aggressive behavior was objectively measured. The correlation between self-report of aggressiveness and aggressive behavior was significantly higher for high-than for low-private self-conscious subjects. The correlation between self-report and behavior was unaffected by public self-consciousness. The implications of these findings for self-consciousness theory and personality dispositions are discussed. 相似文献
985.
David Aderman Fred B Bryant David E Domelsmith 《Journal of research in personality》1978,12(2):172-178
Female subjects were exposed individually to the attitude item responses of a similar or dissimilar stranger. They were asked either to copy down the stranger's attitudes or to predict (with accurate feedback) how the stranger answered each item. Predict subjects were found to be more tolerant of the dissimilar stranger than were Copy subjects, while both groups were equally attracted to the similar stranger. It was suggested that training people to anticipate disagreements may be a useful way of fostering tolerance. 相似文献
986.
987.
A simple input and output circuit is described that allows users to sense contact closures and to drive relays from a Digital Equipment Corporation LSI-11 DRV 11 parallel interface board or a signal-compatible equivalent. 相似文献
988.
David T. Krausman 《Behavior research methods》1978,10(4):519-521
A method is described for interfacing relatively inexpensive component- and chip-level devices to a standard Intel microcomputer board for providing an on-line physological monitoring system. The system demonstrates basic interfacing techniques and a highly simplified approach for integrating various state-of-the-art peripheral circuit components to a standard microcomputer configuration. 相似文献
989.
990.
David Gaffan 《Quarterly journal of experimental psychology (2006)》1978,30(2):263-281
Four experiments using a yes-no recognition task with snapshots examined (1) the effect of presenting not one but two items simultaneously, either both targets or both distractors, for a single judgment at a retention test trial; (2) the rate of forgetting; (3) the interaction between retention interval and the exposure duration at acquisition; (4) acquisition as a function of the number of times a picture was presented. In each case performance was assessed by calculating the discriminability index d'. The results supported the hypotheses that trace strength is lognormally distributed, that forgetting is exponential, and that in acquisition trace strength is a linear function of the number of presentations. 相似文献