首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   76603篇
  免费   2988篇
  国内免费   25篇
  79616篇
  2020年   722篇
  2019年   905篇
  2018年   1243篇
  2017年   1311篇
  2016年   1362篇
  2015年   968篇
  2014年   1166篇
  2013年   5654篇
  2012年   2202篇
  2011年   2421篇
  2010年   1492篇
  2009年   1469篇
  2008年   2103篇
  2007年   2129篇
  2006年   1929篇
  2005年   1720篇
  2004年   1606篇
  2003年   1510篇
  2002年   1657篇
  2001年   2464篇
  2000年   2443篇
  1999年   1845篇
  1998年   886篇
  1997年   780篇
  1996年   762篇
  1992年   1559篇
  1991年   1438篇
  1990年   1454篇
  1989年   1343篇
  1988年   1318篇
  1987年   1256篇
  1986年   1342篇
  1985年   1364篇
  1984年   1135篇
  1983年   1039篇
  1982年   748篇
  1981年   734篇
  1979年   1214篇
  1978年   876篇
  1977年   731篇
  1975年   1054篇
  1974年   1108篇
  1973年   1169篇
  1972年   1008篇
  1971年   933篇
  1970年   848篇
  1969年   924篇
  1968年   1116篇
  1967年   1011篇
  1966年   909篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
901.
902.
903.
904.
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   
905.
Three psychotherapy groups consisting of altogether 37 patients took part in communication training after L. Sch?bisch and M. Sieme in preparation for group-centred dynamic psychotherapy. The results of pretherapy and post-therapy surveys with the MMPI were tested for quantitative changes using Posthoff and H. F. B?ttcher's gnoseologically based test. The findings suggest that this combination of methods has a high standard of efficiency, which is finally discussed.  相似文献   
906.
The author diagnoses 350 carefully selected schizophrenic subjects, their parents and their siblings during parallel studies using three different clinical classification systems and analyzes the results by multiple threshold analysis and the multifactorial inheritance model. The results suggest that, of the three classifications the author studied, Leonhard's and Sneshnewski's system yield relatively homogeneous subgroups; this indicates the future significance of these nosological systems for the planning of biopsychiatric research.  相似文献   
907.
The role of visual memory in learning to spell words was investigated through a matching task on which one nonsense word was presented, then a second word identical in spelling or differing in one letter was presented. Ten pairs of 9th and 10th-grade students, matched for intelligence and sex but of different spelling ability, were asked to indicate whether word pairs were spelled the same or differently. The two words of a pair were either the same or different in print size or letter case. Significant effects were obtained for spelling ability, print size (same or different), and letter case (same or different), and the interaction of size X case, providing evidence for the use of visual memory by both good and poor spellers in learning to spell words. Good spellers were equally able to identify matched and mismatched pairs, while poor spellers showed greater difficulty in identifying mismatches than matches, supporting Frith's (1980) "partial cues" explanation of poor spelling performance.  相似文献   
908.
A follow-up study with a younger group of mildly handicapped Japanese students was conducted to determine if the correlations between the Developmental Test of Visual-motor Integration and reading and mathematics achievement would substantiate the previous findings. For 30 mildly handicapped 11- and 12-yr.-old Japanese students, visual-motor integration scores were significantly correlated with both mathematics and reading scores. These results, added to the 1984 Webb and Abe data, further support the test's cross-cultural validity.  相似文献   
909.
Hyperlexia and a variant of hypergraphia   总被引:1,自引:0,他引:1  
A patient with hyperlexia and hypergraphia is described. The unusual co-occurrence of these two abilities is discussed. Hyperlexia may provide a useful marker to guide educational programming.  相似文献   
910.
The purposes of this study were (1) to replicate a right visual-field advantage for a version of the Embedded Figures Test modified for tachistoscopic presentation and (2) to test for a relationship between field independence and performance on modified Embedded Figures Test items presented to the right visual-field. 34 right-handed subjects were presented Embedded Figures Test items to the left, center, and right visual-fields for 150 msec. The Group Embedded Figures Test was also given. Results showed a right visual-field advantage on the modified embedded-figures test and (2) a negative relationship between Group Embedded Figures Test performance and right visual-field scores. These findings were discussed in terms of the differences between the two versions of the embedded-figures test, memory for simple figures, specificity of judgment, and sustained versus tachistoscopic perception. A tentative conclusion suggests that a better internal representation of the briefly presented complex figures places field-independent subjects at a disadvantage on the modified version of the test.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号