全文获取类型
收费全文 | 1633篇 |
免费 | 58篇 |
国内免费 | 20篇 |
专业分类
1711篇 |
出版年
2023年 | 15篇 |
2022年 | 10篇 |
2021年 | 16篇 |
2020年 | 32篇 |
2019年 | 37篇 |
2018年 | 51篇 |
2017年 | 33篇 |
2016年 | 42篇 |
2015年 | 30篇 |
2014年 | 55篇 |
2013年 | 155篇 |
2012年 | 82篇 |
2011年 | 63篇 |
2010年 | 55篇 |
2009年 | 42篇 |
2008年 | 51篇 |
2007年 | 49篇 |
2006年 | 57篇 |
2005年 | 48篇 |
2004年 | 43篇 |
2003年 | 33篇 |
2002年 | 41篇 |
2001年 | 46篇 |
2000年 | 49篇 |
1999年 | 27篇 |
1998年 | 19篇 |
1997年 | 19篇 |
1992年 | 22篇 |
1991年 | 17篇 |
1990年 | 40篇 |
1989年 | 24篇 |
1988年 | 12篇 |
1987年 | 27篇 |
1986年 | 34篇 |
1985年 | 24篇 |
1984年 | 23篇 |
1983年 | 18篇 |
1982年 | 9篇 |
1981年 | 13篇 |
1980年 | 9篇 |
1979年 | 13篇 |
1978年 | 12篇 |
1975年 | 17篇 |
1974年 | 16篇 |
1973年 | 21篇 |
1972年 | 16篇 |
1971年 | 18篇 |
1970年 | 15篇 |
1968年 | 9篇 |
1967年 | 10篇 |
排序方式: 共有1711条查询结果,搜索用时 0 毫秒
41.
S. B. DUNNETT F. H. GAGE A. BJÖRKLUND U. STENEVI W. C. LOW S. D. IVERSEN 《Scandinavian journal of psychology》1982,23(S1):104-111
A brief review is provided of the capacity of neural tissue transplants to reinnervate the deafferented hippocampus and repair functional deficits induced by the lesion. The techniques for transplantation of solid pieces of embryonic septum, locus coeruleus or raphe nuclei, or tissue suspensions of embryonic septum, to the adult rat hippocampus are described. Such grafts manifest good long-term survival, provide a good reinnervation of the hippocampus that is histochemically and biochemically appropriate and specific, can establish ultrastructural synaptic contacts with the host, and are electrophysiologically active. Rats with septal grafts manifest recovery of the capacity to learn certain aspects of radial 8-arm maze, T-maze alternation and Morris water-maze tasks. Rats with locus coeruleus grafts manifest an amelioration of lesion-induced hyperactivity. It is concluded that neural tissue transplantation provides a powerful new tool in the study of the functional organization of the hippocampus and its various neurotransmitter-specific afferent systems. 相似文献
42.
F. H. GAGE S. B. DUNNETT A. BJÖRKLUND U. STENEVI 《Scandinavian journal of psychology》1982,23(S1):112-120
Mammals are well known to manifest recovery over time of many functional impairments induced by brain lesions. A brief reveiw is provided of the different conceptual frameworks within which functional recovery has been examined in the literature, and of different neurobiological mechanisms that have been proposed to account for the phenomenon. We observe that these two levels of analysis have frequently been only loosely related. Finally, a newly identified biological mechanism—compensatory collateral sprouting—is described which appears to be closely related to functional recovery in animals with hippocampal lesions, and this is proposed as a powerful new model within which to investigate further the relationship between the phenomenon of functional recovery and its underlying mechanisms. 相似文献
43.
This study examined social competencies in 4-year-old, lower income, nonwhite preschool children in a replication of work by Shure, Spivack, and Jaeger. Age differential interpersonal cognitive problem-solving skills were investigated, i.e., ability to generate alternative solutions to interpersonal problems, consequential thinking, and school achievement as they relate to behavioral adjustment ratings by teachers and independent observers. A teacher's rating of a child as aberrant or adjusted predicted an independent observer's rating of that child in a naturalistic setting. Children who were rated as adjusted by their teachers had significantly higher scores on an achievement inventory than those children who were rated aberrant, but the study did not find the predicted relationship between problem-solving thinking and adjustment.
A version of this paper was presented at the annual meeting of the American Psychological Association, New York, September 1979. The study was supported by grants from the McGregor Fund, the Eloise and Richard Webber Foundation, the David M. Whitney Fund and by the Detroit Public Schools Region 7, for which the authors express grateful appreciation. The authors also wish to thank Myrna B. Shure for her help in carrying out this replication. 相似文献
44.
J L?ssner H Bachmann D Biesold K Günther U Ruchholtz W Storch A Wagner 《Psychiatrie, Neurologie, und medizinische Psychologie》1979,31(9):513-524
The Leipzig Center for Wilson's Disease in the GDR is charged with the registration and diagnosis of all homozygous Wilson gene carriers, the clarification of all suspected cases, including the heterozygote test, and the co-ordination of long-term treatment. At present, there are 78 recorded Wilson gene carriers living. On the basis of our own comprehensive observations and investigations over prolonged periods of time, questions concerning pathogenesis, genetics, diagnosis and therapeutic measures, including their side-effects, are dealt with. 相似文献
45.
46.
W U Dressler 《Brain and language》1979,8(1):19-24
A motor aphasic patient had to repeat word lists that contained, among other things, words with the sequences r - r - l and l - l - r. These sequences were often repeated as l - r - l (anticipatory distant assimilation) and r - l - r (same type, but less frequently), respectively. These assimilations violate the cross-over constraint (or relevancy condition or adjacency principle) and thus represent another instance of a flagrant contradiction between pathological and normal (natural) phonological processes. 相似文献
47.
48.
In the first phase of an experiment reducing hostility through fantasy, 203 first and second-year high school students completed a daydreaming scale, Rotter ISB, and a sociometric scale designed to ascertain which of their peers behave aggressively. The students of the upper and lower quarters of the daydreaming scale were classified as high and low fantasy, and as aggressive or nonaggressive subjects. The second phase, two weeks later, consisted of 94 subjects forming three groups: a trait aggressive group, a nonaggressive control group, and a group of nonaggressive subjects experimentally manipulated for aggression. Half of the subjects composed stories to four high-cue aggressive TAT cards; the other half read neutral stories. All the subjects then again completed the Rotter ISB which was scored for aggression. Analysis of covariance of the scores indicated that a reduction in hostility occurred only for the group experimentally aroused to aggression in the TAT condition. The scores of the trait-aggressive subjects, tested in a before-after analysis, showed an increase in their hostility level. Fantasy capacity did not influence the scores. 相似文献
49.
U Kiehl 《Psychiatrie, Neurologie, und medizinische Psychologie》1977,29(9):543-548
The etiology, pathogenesis, and clinical treatment of stenoses of the isthmus aortae are outlined. Following this, the particular case of a 41-year-old patient with typical stenosis of the isthmus of the aorta is reported. The course of disease required the need for a surgical operation, which had not initially been taken into consideration, to be reexamined. The patient, after performance on him of vascular restoration, is now on a part-time job. Using age as the sole circumstance indicating the inadvisability of performing a surgical operation in the case of stenosis of the isthmus aortae cannot any longer be considered justifiable. 相似文献
50.