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   679篇
  免费   90篇
  国内免费   100篇
  2023年   5篇
  2022年   15篇
  2021年   21篇
  2020年   30篇
  2019年   20篇
  2018年   27篇
  2017年   36篇
  2016年   24篇
  2015年   28篇
  2014年   30篇
  2013年   111篇
  2012年   38篇
  2011年   47篇
  2010年   42篇
  2009年   33篇
  2008年   34篇
  2007年   36篇
  2006年   38篇
  2005年   17篇
  2004年   19篇
  2003年   21篇
  2002年   15篇
  2001年   20篇
  2000年   11篇
  1999年   11篇
  1998年   5篇
  1997年   5篇
  1996年   5篇
  1995年   6篇
  1994年   6篇
  1993年   5篇
  1992年   6篇
  1991年   7篇
  1990年   5篇
  1989年   6篇
  1986年   7篇
  1985年   5篇
  1984年   5篇
  1983年   10篇
  1982年   3篇
  1981年   3篇
  1977年   4篇
  1974年   3篇
  1973年   4篇
  1972年   3篇
  1970年   3篇
  1968年   3篇
  1957年   3篇
  1951年   4篇
  1950年   3篇
排序方式: 共有869条查询结果,搜索用时 31 毫秒
1.
迷信,是人类对自然界及自身缺乏正确认识的结果。它是人类认识过程和社会发展过程中的一个阶段,本身不足为怪。但在阶级社会就复杂化了,  相似文献   
2.
Counselors are in ideal positions to help change attitudes toward viewing menopause as a time of positive change, rather than a time of psychological distress. Following definitions and a review of historical, sociological, psychological, and attitudinal factors that account for negative responses associated with menopause, recommendations for counselor interventions are proposed.  相似文献   
3.
4.
This work has received financial support from FONDECYT (Project 1111-88). The authors also acknowledge the helpful comments of Dr. Bruce Cassels.  相似文献   
5.
The work of the Center for the Study of the Family in Milan has had wide influence. We describe its influence on us--the positive connotation of many car journeys, our self-training, and changes in how we view, and function in, our personal and professional lives.  相似文献   
6.
The experiments examined the contributions of forebrain noradrenaline and environmental enrichment to recovery of place navigation ability in rats after hemidecortication in infancy or adulthood. Noradrenaline depletion did not affect recovery from neonatal hemidecortication, although the early hemidecortications did allow sparing of function relative to adult operates. Noradrenaline depletion also failed to attenuate the positive effects of enriched housing on otherwise normal rats. Noradrenaline depletion did retard recovery of adult hemidecorticate rats housed in standard laboratory cages, but it did not retard recovery of adult hemidecorticate rats housed in enriched environments. The results suggest that noradrenaline is importantly involved in enhancing recovery from brain damage when other sources of compensation (e.g., neonatal injury, enriched environment) are absent.  相似文献   
7.
Alternate monocular and binocular exposure to complementary stimulation can yield opposite but coexisting aftereffects that are contingent on whether the test display is viewed with one eye or two eyes. The motion aftereffect was studied by adapting each eye separately to a contracting spiral and both eyes together to an expanding spiral. The stationary test spiral subsequently appeared to be expanding when viewed monocularly, but to be contracting when it was seen with both eyes open. With respect to the McCollough effect, after monocular exposure to red-vertical and green-horizontal gratings and binocular exposure to red-horizontal and green-vertical gratings, the appearance of the color of the test gratings when viewed with one eye was different from that when viewed with both eyes. Opposite, coexisting aftereffects induced by complementary stimulation can be interpreted as evidence that there are unique binocular aspects to visual function.  相似文献   
8.
The effect of environmental enrichment on normal rats, rats that received hemidecortication at birth, and rats that received hemidecortication when adult was studied in the Morris water task, which is a spatial navigation task requiring the use of distal cues for successful performance. Enrichment was achieved by housing the rats for 90 days in a large outdoor compound that was designed to model a natural environment. Adult hemidecorticated lab-raised rats were severely impaired in the acquisition of the task but neonatally hemidecorticated rats, although also impaired, showed significant sparing. Postsurgical, but not presurgical, enrichment of adult hemidecorticated rats significantly enhanced their recovery. Enrichment had little effect on neonatally decorticated rats or on normal rats. Although there were no gross anatomical changes associated with enrichment, the paradigm provides both a robust phenomena and a cortically dependent task that is ideal for investigating the processes in the remaining intact hemisphere that must support recovery.  相似文献   
9.
本工作是在前一工作的基础上,进一步研究分别电损毁有关回路的乳头体、隔区,对以糖精水为条件刺激。氯化锂腹腔注射引起中毒作为非条件刺激的条件性糖精厌恶痕迹的形成和保存的影响。结果表明,无论是损毁乳头体,或者隔区,对条件性糖精厌恶痕迹的形成和保存均无影响。说明在本实验条件下,这种条件性味觉痕迹的形成与保存,不依赖边缘系统的乳头体、海马、隔区这些回路的参与,这就进一步说明味觉信号的记忆确有其不同于视、听觉信号的记忆的机制的。  相似文献   
10.
Previous research has consistently found that unsociability is linked to adjustment difficulties in Chinese children. However, far less attention has been paid to how parents and peers react when confronted with unsociable children. In this study, we explored the longitudinal linkages among Chinese preschoolers' unsociability, maladaptive parenting, and peer exclusion. Participants were mothers and teachers of N = 391 (Mage = 4.4 years, SD = 0.91 years; 54.5% boys) preschoolers attending eight kindergartens in Shanghai, People's Republic of China, followed over 8 months. Multi-source assessments were employed. Mothers rated children's unsociability and their maladaptive (physical hostility, verbal hostility, punishment) parenting practices, and teachers rated children's peer exclusion at each time point. Our results indicated that child unsociability contributed to later increases in both maladaptive parenting and peer exclusion. However, maladaptive parenting and peer exclusion could not predict later increases in unsociability. Results are discussed in terms of the implications of unsociability among Chinese children.  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