全文获取类型
收费全文 | 2691篇 |
免费 | 94篇 |
国内免费 | 1篇 |
专业分类
2786篇 |
出版年
2020年 | 22篇 |
2019年 | 36篇 |
2018年 | 42篇 |
2017年 | 54篇 |
2016年 | 41篇 |
2015年 | 37篇 |
2014年 | 68篇 |
2013年 | 244篇 |
2012年 | 80篇 |
2011年 | 108篇 |
2010年 | 57篇 |
2009年 | 70篇 |
2008年 | 81篇 |
2007年 | 86篇 |
2006年 | 87篇 |
2005年 | 84篇 |
2004年 | 82篇 |
2003年 | 69篇 |
2002年 | 78篇 |
2001年 | 36篇 |
2000年 | 40篇 |
1999年 | 44篇 |
1998年 | 44篇 |
1997年 | 42篇 |
1996年 | 30篇 |
1995年 | 36篇 |
1994年 | 31篇 |
1993年 | 37篇 |
1992年 | 40篇 |
1991年 | 29篇 |
1990年 | 29篇 |
1989年 | 26篇 |
1988年 | 34篇 |
1987年 | 27篇 |
1986年 | 27篇 |
1985年 | 42篇 |
1984年 | 46篇 |
1983年 | 26篇 |
1982年 | 35篇 |
1981年 | 48篇 |
1980年 | 46篇 |
1979年 | 34篇 |
1978年 | 56篇 |
1977年 | 49篇 |
1976年 | 33篇 |
1975年 | 51篇 |
1974年 | 46篇 |
1973年 | 36篇 |
1969年 | 22篇 |
1966年 | 22篇 |
排序方式: 共有2786条查询结果,搜索用时 6 毫秒
91.
92.
Edward H. Cornell 《Memory & cognition》1980,8(6):539-542
Infants of 5–6 months of age were tested for recognition of briefly presented photographs of faces. The interaction typically obtained with adults, a beneficial effect on retention due to the temporal spacing of study, was obtained with these infants. The results suggest that the distribution effect reflects a fundamental and automatic process of human memory. 相似文献
93.
94.
95.
96.
97.
The effects of instructional set (become aroused or suppress arousal), stimulus modality (videotape, audiotape, slides, free fantasy) and stimulus content (paraphilic or non-paraphilic) on sexual arousal, as measured by penile plethysmograph, of six different groups of paraphilics, pedophiles, rapists, exhibitionists, homosexuals, sado-masochists and fetishists, were determined. The results showed significant main effects of instructional set and of stimulus modality (videotape was clearly more arousing) as well as several complex interactions of diagnostic group with the other independent variables. 相似文献
98.
Edward M. Burns 《Attention, perception & psychophysics》1981,30(5):467-472
The Shepard illusion, in which the presentation of a cyclically repetitive sequence of complex tones composed of partials separated by octave intervals (Shepard, 1964) gives the illusion of an endlessly increasing sequence of pitch steps, is often cited as evidence for octave equivalence. In this paper, evidence is presented which demonstrates that this illusion can be produced using (inharmonic) complex tones whose partials are separated by equal ratios other than octaves. Therefore, the illusion is not evidence for octave equivalence. 相似文献
99.
100.
Herman H. Spitz 《Intelligence》1981,5(1):77-83
Restraints are imposed on the fullest emergence of g when subjects of equal chronological age are drawn from a restricted range of intelligence, or when groups representing different levels of IQ are factor-analyzed separately. Realistically, persons representing the extremes of intelligence cannot be included in the same study unless they are approximately equated on mental age (MA), in which case the relative performances of the extreme groups can provide useful information about the nature of intelligence. Comparisons of less extreme groups (e.g., average vs intellectually retarded or gifted) are also informative, particularly when attention is given to the types of tasks on which the retarded show the largest MA lag and the gifted show the largest MA acceleration. 相似文献