全文获取类型
收费全文 | 5272篇 |
免费 | 49篇 |
国内免费 | 2篇 |
出版年
2022年 | 10篇 |
2021年 | 18篇 |
2020年 | 24篇 |
2019年 | 13篇 |
2018年 | 146篇 |
2017年 | 138篇 |
2016年 | 218篇 |
2015年 | 119篇 |
2014年 | 49篇 |
2013年 | 173篇 |
2012年 | 313篇 |
2011年 | 310篇 |
2010年 | 50篇 |
2009年 | 48篇 |
2008年 | 70篇 |
2007年 | 59篇 |
2006年 | 65篇 |
2005年 | 1341篇 |
2004年 | 678篇 |
2003年 | 473篇 |
2002年 | 148篇 |
2001年 | 38篇 |
2000年 | 21篇 |
1999年 | 28篇 |
1997年 | 13篇 |
1994年 | 15篇 |
1992年 | 30篇 |
1991年 | 44篇 |
1990年 | 61篇 |
1989年 | 46篇 |
1988年 | 29篇 |
1987年 | 44篇 |
1986年 | 37篇 |
1985年 | 34篇 |
1984年 | 30篇 |
1983年 | 23篇 |
1979年 | 36篇 |
1978年 | 12篇 |
1977年 | 10篇 |
1976年 | 11篇 |
1975年 | 28篇 |
1974年 | 33篇 |
1973年 | 34篇 |
1972年 | 27篇 |
1971年 | 28篇 |
1970年 | 20篇 |
1969年 | 19篇 |
1968年 | 18篇 |
1967年 | 17篇 |
1966年 | 17篇 |
排序方式: 共有5323条查询结果,搜索用时 15 毫秒
831.
S Sikstr?m 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》2000,53(3):693-728
A large number of experiments in successive tests of episodic memory have focused on an experimental paradigm called recognition failure of recallable words. In this paradigm, a cued recall test follows a recognition test. Large amounts of data have revealed a lawful moderate dependence between recognition and cued recall. TECO (Sikstr?m, 1996b), a general connectionist theory of memory, has been applied for the phenomenon of recognition failure. This paper makes a strong claim that all possible pairwise combinations of successive tests between recognition, cued recognition, cued recall, and free recall follow a lawful relationship. The quantitative degree of the dependency predicted between these tests can be summarized in one function. Four experiments were conducted to test this claim. In line with the predictions, the results show that all pairwise combinations of these tests fit reasonably well with the proposed function. The TECO theory suggests theoretical insights into how recognition and recall may be divided into a recollection component, a familiarity component, and a cue-target integration component. 相似文献
832.
833.
834.
835.
836.
837.
838.
839.
B J Everitt K Fuxe F T H?kfelt G Jonsson 《Journal of comparative psychology (Washington, D.C. : 1983)》1975,89(6):556-572
The involvement of indole- and catecholamines in the hormonal regulation of sexual receptivity has been investigated in ovariectomized female rats. Drugs that reduce 5-hydroxytryptamine, dopamine, and adrenaline or increase noradrenaline neurotransmission tended to facilitate the occurrence of estrous behavior in estrogen-treated females, and drugs having opposite effects tended to inhibit receptivity induced by estrogen and progesterone. Estrogen decreased noradrenaline turnover in cortex and brain stem; progesterone enhanced this effect in brain stem but prevented it in cortex. Both hormones tended to block noradrenaline uptake in hypothalamus in vitro. In a schedule used to induce receptivity, estrogen accelerated serotonin turnover, an effect prevented by progesterone. Thus a number of monoamines may be involved in the control by hormones of estrous behavior. Furthermore, hormones affect both amine turnover and uptake mechanisms. 相似文献
840.
G Sack J L?ssner H Bachmann 《Psychiatrie, Neurologie, und medizinische Psychologie》1975,27(8):455-462
The results of electroencephalographic and familial studies of 31 Wilson's disease patients coming from 26 kindreds are presented. Prior to treatment, 8 patients showed pathological conditions, while 9 and 11 patients showed borderline and normal conditions, respectively, it having not been possible to determine electroencephalographic conditions characteristic of Wilson's disease and find any relationships between the intensity of E.E.G. changes and the clinical picture and stage of development of the disease, respectively. Under penicillamine treatment, there was observed a tendency toward normalization of pathological conditions rather than deterioration of normal E.E.G. findings. So far as familial studies are concerned, the authors report the results obtained for 9 fathers, 19 mothers, and 24 siblings from a total of 21 kindreds; what is remarkable in this connection is the comparatively small percentage of normal E.E.G. findings for healthy siblings. It was only in one single kindred that it was possible to observe similarities between E.E.G. variations of individual family members. 相似文献