全文获取类型
收费全文 | 4764篇 |
免费 | 11篇 |
国内免费 | 1篇 |
专业分类
4776篇 |
出版年
2019年 | 5篇 |
2018年 | 126篇 |
2017年 | 106篇 |
2016年 | 196篇 |
2015年 | 102篇 |
2014年 | 46篇 |
2013年 | 92篇 |
2012年 | 268篇 |
2011年 | 265篇 |
2010年 | 28篇 |
2009年 | 31篇 |
2008年 | 38篇 |
2007年 | 40篇 |
2006年 | 43篇 |
2005年 | 1321篇 |
2004年 | 664篇 |
2003年 | 453篇 |
2002年 | 140篇 |
2001年 | 30篇 |
2000年 | 13篇 |
1999年 | 26篇 |
1996年 | 5篇 |
1995年 | 6篇 |
1994年 | 12篇 |
1992年 | 28篇 |
1991年 | 45篇 |
1990年 | 63篇 |
1989年 | 47篇 |
1988年 | 28篇 |
1987年 | 49篇 |
1986年 | 40篇 |
1985年 | 34篇 |
1984年 | 26篇 |
1983年 | 22篇 |
1982年 | 7篇 |
1979年 | 33篇 |
1978年 | 12篇 |
1977年 | 9篇 |
1976年 | 11篇 |
1975年 | 29篇 |
1974年 | 32篇 |
1973年 | 32篇 |
1972年 | 26篇 |
1971年 | 25篇 |
1970年 | 18篇 |
1969年 | 20篇 |
1968年 | 16篇 |
1967年 | 17篇 |
1966年 | 17篇 |
1965年 | 8篇 |
排序方式: 共有4776条查询结果,搜索用时 6 毫秒
21.
Age differences in the acculturation process 总被引:1,自引:0,他引:1
Age differences were assessed in a conceptual model that seeks to explain how acculturation affects psychological well-being among Mexican Americans. The data were from a national probability sample of 859 persons of Mexican decent. It was hypothesized that low acculturation creates financial stress. Moreover, low acculturation and financial stress were in turn predicted to erode feelings of personal control and self-esteem. Finally, diminished feelings of control and low self-esteem were hypothesized to exert a negative impact on psychological well-being. When data from respondents of all ages was assessed, empirical support was found for all of the hypotheses except the linkage between acculturation and financial stress. However, few age differences emerged in the model. The authors conclude that older Mexican Americans may not be more vulnerable to the stressors associated with acculturation. 相似文献
22.
Merrill Hiscock Marcel Kinsbourne Marilyn Samuels A.E. Krause 《Journal of experimental child psychology》1985,40(3):486-500
Tapping rate and variability were measured as 73 normal, right-handed children in Grades 1–4 engaged in speeded unimanual finger tapping with and without concurrent recitation. Speaking reduced the rate of tapping and increased its variability to a greater extent in younger children than in older children. Developmental changes in variability but not rate were attributable to a greater number of lengthy (>500 ms) pauses in the tapping of younger children. Speaking slowed the right hand more than the left, and the degree of this asymmetry was constant across grade levels. The right-hand effect for tapping rate was not attributable to lengthy pauses. In contrast, asymmetric increases in tapping variability occurred only among children in Grade 1 and only when lengthy pauses were included in the data. The results implicate three mechanisms of intertask interference: one involving capacity limitations, a second involving cross-talk between motor control mechanisms for speech and finger movement, respectively, and a third factor involving occasional diversion of attention from tapping to speaking. These mechanisms are discussed in relation to developmental changes in mental capacity. 相似文献
23.
Aggressive behavior inhibition by serotonin and quipazine injected into the amygdala in the rat 总被引:1,自引:0,他引:1
The effects on aggressive behavior, open-field activity, and pain threshold of bilateral microinjections of serotonin (20 micrograms) and quipazine (20 micrograms), the direct serotonergic receptor agonist, into the cortico-medial amygdala were investigated in Wistar rats. Both drugs significantly prolonged the attack latency in isolated killer rats (predatory aggression model), and suppressed the incidence of aggressive postures/attacks in shock-induced fighting test (affective aggression). The only difference in the open-field behavior was the lower number of central square entries in drug-treated compared to saline-injected rats. None of the substances produced any significant change in jump threshold. It is concluded that stimulation of serotonin receptors within the amygdala produces inhibition of affective and muricidal behavior in isolated rats. The effect does not seem to be dependent on changes in general activity and pain sensitivity. 相似文献
24.
25.
26.
The authors present a short review of the pertinent literature and report on their own neuropsychiatric findings following internal craniocerebral injuries, at the same time drawing attention to the necessity of psychological examination. Statistical comparisons with the international literature are complicated owing to the different classifications used for craniocerebral injuries. 相似文献
27.
Attributional retraining: a review 总被引:18,自引:0,他引:18
F F?rsterling 《Psychological bulletin》1985,98(3):495-512
28.
29.
30.
A report on the clinical testing of the lithium-retard medicament Contemnol (Spofa). It details the way lithium-retard treatment is objectively and subjectively superior to the earlier and still current general lithium treatment. 相似文献