全文获取类型
收费全文 | 2665篇 |
免费 | 181篇 |
国内免费 | 1篇 |
出版年
2023年 | 12篇 |
2022年 | 19篇 |
2021年 | 33篇 |
2020年 | 59篇 |
2019年 | 75篇 |
2018年 | 109篇 |
2017年 | 114篇 |
2016年 | 103篇 |
2015年 | 77篇 |
2014年 | 114篇 |
2013年 | 373篇 |
2012年 | 138篇 |
2011年 | 157篇 |
2010年 | 97篇 |
2009年 | 87篇 |
2008年 | 116篇 |
2007年 | 115篇 |
2006年 | 91篇 |
2005年 | 88篇 |
2004年 | 107篇 |
2003年 | 85篇 |
2002年 | 74篇 |
2001年 | 36篇 |
2000年 | 40篇 |
1999年 | 35篇 |
1998年 | 23篇 |
1997年 | 28篇 |
1996年 | 35篇 |
1995年 | 26篇 |
1994年 | 26篇 |
1993年 | 16篇 |
1992年 | 22篇 |
1991年 | 15篇 |
1990年 | 12篇 |
1989年 | 17篇 |
1988年 | 12篇 |
1987年 | 13篇 |
1986年 | 13篇 |
1985年 | 17篇 |
1984年 | 22篇 |
1982年 | 13篇 |
1981年 | 11篇 |
1980年 | 16篇 |
1979年 | 15篇 |
1978年 | 17篇 |
1977年 | 11篇 |
1975年 | 11篇 |
1973年 | 15篇 |
1972年 | 12篇 |
1966年 | 10篇 |
排序方式: 共有2847条查询结果,搜索用时 15 毫秒
51.
Clinical and autopsy studies were made on a right-handed man who had central deafness and subcortical motor aphasia, and the literature on central deafness and on subcortical motor aphasia was analyzed. Central deafness is due to bilateral destruction of the primary auditory cortex. It is sometimes difficult to distinguish from word deafness and from auditory agnosia, which are due to pathology in other parts of the temporal lobes. There is almost always some preserved hearing in central deafness, possibly from some auditory pathway other than the classical pathway. In this patient the subcortical motor aphasia was due to bilateral destruction of the motor cortex for the mouth and throat. In some other cases subcortical motor aphasia was due to the same pathology that usually causes Broca's aphasia; in these cases the unexpected preservation of writing was perhaps related to some difference in how language functions were organized in the brain. 相似文献
52.
Sheila E. Blumstein William E. Cooper Harold Goodglass Sheila Statlender Jonathan Gottlieb 《Brain and language》1980,9(2):153-170
An experimental study was conducted to examine phonetic and phonemic deficits in the speech production of aphasics. Subjects included four Broca's aphasics, four Conduction aphasics, five Wernicke's aphasics, one nonaphasic dysarthric patient, and four normal controls. The subjects read a list of words containing word-initial stop consonants which were subsequently measured acoustically for voice-onset time. The results showed that Broca's aphasics exhibit a more severe production disorder than Conduction aphasics who in turn exhibit a more severe disorder than Wernicke's aphasics, in accord with clinical observations. In addition, although Broca's aphasics produced both phonetic and phonemic errors, the results showed that they have a pervasive phonetic disorder which affects their correct target productions as well as the total number of phonetic errors produced. This deficit however seems to be a speech deficit rather than a low-level motor control problem. In contrast, the Wernicke's aphasics show a deficit characterized by isolated phonemic mistargeting errors. Finally, the pattern of productions for the Conduction aphasics indicates that some patients show a predominantly phonetic disorder similar to the Broca's aphasics and others show predominantly a phonemic disorder similar to the Wernicke's aphasics. 相似文献
53.
Howard L. Kaplan 《Behavior research methods》1981,13(2):283-289
To obtain different sequences of values from a random number generating algorithm, we must start with different seed values or discard a variable number of initial samples. For maximum independence among sequences, differences must include the lowest order seed bits, and some generators require one to wait many samples for differences to propagate to the significant bits. While it is straightforward to generate two statistically independent sequences, it is surprisingly difficult to generate three or more such sequences. 相似文献
54.
Howard L. Kaplan 《Behavior research methods》1983,15(2):228-241
The Fourier transform partitions the energy in a waveform into the sum of the energies of simpler components. This process is the same as the partitioning of variance into linear contrasts and is a way of measuring the correlation between the waveform and each member of a family of prototype model waveforms. Such a partitioning will often, but not always, result in a meaningful decomposition of the original waveform. 相似文献
55.
Is our understanding of how individuals adjust to stressful life events increased when we analyze their adjustment in ways that recognize that these individuals are also married couples? The data used to answer this question came from a unique “natural experiment” occasioned by the forced evacuation of the Israeli settlement of Ophira under the terms of the Camp David Accords. We found that the adjustment of individuals within couples became more similar across the relocation, that is, couples adapted as a “family system.” This occurred because the coping skills of one member of the couple “drove” the adjustment of both partners. 相似文献
56.
Gender differences in health-related quality of life 总被引:1,自引:0,他引:1
In 1986 the life expectancy at birth was 71.3 years for males and 78.3 years for females--providing a 7-year advantage for women. Although women live longer, it has been reported that they paradoxically experience more physical and psychological illnesses. In this article, we estimate the expected well-years or quality-adjusted life years for men and women in the general population. The data were obtained in a random sample of 1,034 residents of San Diego. The well-life expectancy uses standard life expectancies with adjustments for quality of life. The well-life expectancy for men was 59.8 years; for women, it was 62.7 years. Thus, the quality adjustment had significantly more impact on women (15.6 years) than on men (11.5 years). Age-specific estimates of health-related quality of life suggested a male advantage before age 45 and a female advantage after age 45. The benefits of well-years of life as a public health statistic are discussed. 相似文献
57.
OPTIMAL MOVEMENT SELECTION 总被引:3,自引:0,他引:3
58.
Stephen E. Newstead Kenneth I. Manktelow Jonathan St B. T. Evans 《Current psychology (New Brunswick, N.J.)》1982,2(1-3):21-32
Two experiments were carried out to investigate whether visual imagery was used in representing transitive linear ordering relationships. Subjects were presented with passages describing either a linear ordering or a set inclusion relationship, while being subjected to either visual or verbal interference. Performance was tested by asking subjects to judge the truth or falsity of statements concerning both the information presented in the passages and inferences that could be drawn from this information. In neither experiment was there any evidence for the linear ordering material being selectively disrupted by the visual interference task, as would have been predicted by the imagery theory. Thus it is concluded that linear orderings are probably not represented as visual images. 相似文献
59.
60.