全文获取类型
收费全文 | 4808篇 |
免费 | 27篇 |
国内免费 | 1篇 |
出版年
2021年 | 9篇 |
2020年 | 11篇 |
2019年 | 16篇 |
2018年 | 128篇 |
2017年 | 104篇 |
2016年 | 197篇 |
2015年 | 103篇 |
2014年 | 50篇 |
2013年 | 85篇 |
2012年 | 265篇 |
2011年 | 269篇 |
2010年 | 25篇 |
2009年 | 31篇 |
2008年 | 43篇 |
2007年 | 38篇 |
2006年 | 57篇 |
2005年 | 1330篇 |
2004年 | 662篇 |
2003年 | 455篇 |
2002年 | 141篇 |
2001年 | 30篇 |
2000年 | 16篇 |
1999年 | 24篇 |
1998年 | 9篇 |
1994年 | 12篇 |
1992年 | 25篇 |
1991年 | 42篇 |
1990年 | 58篇 |
1989年 | 47篇 |
1988年 | 26篇 |
1987年 | 41篇 |
1986年 | 37篇 |
1985年 | 30篇 |
1984年 | 27篇 |
1983年 | 19篇 |
1979年 | 36篇 |
1978年 | 13篇 |
1977年 | 13篇 |
1976年 | 15篇 |
1975年 | 31篇 |
1974年 | 36篇 |
1973年 | 32篇 |
1972年 | 25篇 |
1971年 | 25篇 |
1970年 | 19篇 |
1969年 | 20篇 |
1968年 | 17篇 |
1967年 | 17篇 |
1966年 | 16篇 |
1965年 | 7篇 |
排序方式: 共有4836条查询结果,搜索用时 15 毫秒
41.
R F?tzsch R Podemski A Brzecki R Bogdańska 《Psychiatrie, Neurologie, und medizinische Psychologie》1986,38(9):518-525
Twenty six clinically healthy smokers were studied with transient pattern visual-evoked potentials. In comparison with a sample of "normal" subjects we found a difference of some parameters (P less than 0.05): the P2-latency and the interocular difference of latency on average were 6-7 ms respectively 2 ms larger. Thirteen subjects have had a prolonged P2-latency (P less than 0.05) and/or a difference in interocular latencies larger than 5 ms. These findings may suggest on subclinical disturbances of visual system and indicators of an special sensitivity of that person. The findings are possibly related to tobacco-alcohol amblyopia. 相似文献
42.
Aged rats with extensive prior training on the radial maze retain the capacity for accurate spatial working memory (WM) for at least 3 months without practice. To investigate the temporal limits of this influence of prior experience we compared the reacquisition of spatial WM by a group of experienced 21.5-month-old rats to the original acquisition by naive 3-month-old rats. The aged rats had received 225 radial maze tests between 3 and 11 months of age. Despite 10 months without practice the old rats rapidly reacquired critical performance. Their reacquisition was markedly superior to original learning by the young rats, even when delays as long as 5 h were imposed between the rats' fourth and fifth choices during the daily tests in the eight-arm maze. Additional tests showed that neither young nor old rats employed a response strategy to maintain accurate spatial WM performance. Experience clearly confers long-lived protection against the otherwise deleterious effects of aging on spatial WM, but the mechanism by which this influence arises is unknown. 相似文献
43.
Cue depreciation: when word fragment completion is undermined by prior exposure to lesser fragments 总被引:3,自引:0,他引:3
Z F Peynircio?lu M J Watkins 《Journal of experimental psychology. Learning, memory, and cognition》1986,12(3):426-431
The ability to think of a previously studied item has often been shown to be impaired when, in one way or another, the extraitem context is changed from study to test. In a series of five experiments, such impairment is induced in a somewhat different way. A fragment (e.g. r-i--rop) of a just-studied word (raindrop) is shown to be less readily completed if it is presented bit by bit (r------p, r----r-p, r-i--r-p, r-i--rop) rather than all at once (Experiments 1, 3, 4, and 5). No such effect is found if the word has not been studied beforehand (Experiments 2, 3, 4, and 5). This pattern of results occurs even when fragments of studied and nonstudied words occur in the same test and under conditions in which subjects cannot tell whether a given fragment is of a studied or nonstudied word (Experiments 4 and 5). In addition, for words that have been studied beforehand, the impairment is shown to increase systematically with the number of steps involved in the presentation of the word fragment (Experiment 3) and also to persist when the time allowed for completion of the final version of the fragment is increased from 4 s to a full minute (Experiment 5). 相似文献
44.
Does the interpretability and aptness of a metaphor depend on prior existing associative relations between the metaphor topic and vehicle? Lexical decision latencies for pairs of words drawn from apt, comprehensible metaphors were no faster than latencies for randomly paired words. In contrast, lexical decision latencies for associatively related word pairs were faster than latencies for randomly paired words. These data suggest that good metaphors do not use preexisting associations to achieve their effects. Instead, we argue tht people use metaphors to create new relations between concepts. Implications for a theory of metaphor comprehension are discussed. 相似文献
45.
E Müller A Schapowahl A Seel?nder 《Psychiatrie, Neurologie, und medizinische Psychologie》1984,36(8):480-488
The somatic and psychosocial development of 80 subjects with manifest affective-phasic psychoses is studied retrospectively and compared with that of an identically sized control group consisting of neuropsychiatrically healthy subjects. Statistically significant differences were found particularly in the answers to questions dealing with social situation and social adaptability. Achievement at school and vocational qualifications were lower among the parents of the patients than among those of the healthy subjects. Characteristic features of the patients' childhood and adolescence were transient depression, often for no apparent cause, and maladaption, and vocational wishes were fulfilled less often than among the controls. The patients experienced greater difficulty in settling in to a new group due to their contact difficulties. 相似文献
46.
T Krause W P Pankau A Wagner J L?ssner 《Psychiatrie, Neurologie, und medizinische Psychologie》1984,36(9):545-550
By 48 patients with Wilson's disease the brainstem acoustic evoked potentials were stated. There were 35 pathological findings (73%), 13 were normal (27%). The waves, determined by the middle and upper brainstem (Pons and Mesencephalon) showed most of all pathological changes. Those patients with forms of Wilson's disease called Pseudoskelerose and Pseudoparkinson showed the most pathological findings. But one could watch these findings by about 30% of patients in preclinical stage. This method can possibly be used for early detection of disorders of brainstem functions and in the same way it can be used for control of treatment by patients in preclinical stage. 相似文献
47.
Anna Kende Hadi Sam Nariman Boglárka Nyúl Constantina Badea Barbara Lášticová Yara Mahfud Andreea Gruev-Vintila Anca Minescu Ashley O'Connor Mihaela Boza Xenia Daniela Poslon Miroslav Popper Márton Hadarics 《Political psychology》2023,44(5):1077-1095
The way politicians talk about minorities institutes the normative context of intergroup relations. We investigated how endorsement of different political discourses predicts donation and collective action intentions by majority members toward the Roma in five European countries. The survey was conducted online using samples demographically similar to the populations of Hungary, Slovakia, Romania, France, and Ireland (N = 5,054). First, results showed that accepting paternalistic discourse versus discourse promoting allyship were not distinguishable; both promoted higher moral inclusion which in turn predicted higher prosocial intentions. Second, donations (i.e., immediate relief) and collective action (i.e., social change action) were driven by identical factors. Third, acceptance of openly hostile political discourse neither predicted moral exclusion, nor lower prosocial intentions. In summary, our research provides important evidence that when it comes to Roma—non-Roma relations, the previously established distinction between solidarity intentions that aim to solidify status relations versus bring about social change is completely blurred, presumably because of the social context in which any positive message communicates moral inclusion challenging the hostile status quo. 相似文献
48.
49.
50.