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   1884篇
  免费   123篇
  2023年   14篇
  2022年   16篇
  2021年   17篇
  2020年   48篇
  2019年   41篇
  2018年   80篇
  2017年   100篇
  2016年   88篇
  2015年   68篇
  2014年   83篇
  2013年   259篇
  2012年   117篇
  2011年   117篇
  2010年   60篇
  2009年   52篇
  2008年   97篇
  2007年   96篇
  2006年   89篇
  2005年   77篇
  2004年   79篇
  2003年   66篇
  2002年   72篇
  2001年   27篇
  2000年   30篇
  1999年   24篇
  1998年   22篇
  1997年   15篇
  1996年   17篇
  1995年   10篇
  1994年   12篇
  1993年   7篇
  1992年   10篇
  1991年   7篇
  1990年   7篇
  1989年   4篇
  1988年   5篇
  1987年   7篇
  1986年   6篇
  1985年   8篇
  1983年   8篇
  1981年   6篇
  1980年   3篇
  1979年   4篇
  1978年   3篇
  1977年   5篇
  1976年   2篇
  1975年   6篇
  1972年   2篇
  1968年   3篇
  1967年   2篇
排序方式: 共有2007条查询结果,搜索用时 15 毫秒
81.
People experience a regulatory fit when they employ means of goal pursuit that fit their regulatory orientation, and this fit increases motivation that can enhance performance. The present studies extend previous research on regulatory fit to the classic motivational variables of fun and importance. They also examine for the first time the effect on performance of the fit between individuals' implicit theories about a task's fun or importance and their strategic engagement of the task as fun or important as induced by task instructions. In all three studies, task performance was better when the external task instructions "fit" rather than did not fit participants' implicit theory for the task. The implications of these findings for understanding the motivational effects of fun and importance are discussed.  相似文献   
82.
Aging and maintaining intentions over delays: do it or lose it   总被引:3,自引:0,他引:3  
When execution of retrieved intentions must be briefly delayed, older adults display deficits in performing those intentions (G. O. Einstein, M. A. McDaniel, M. Manzi, B. Cochran, & M. Baker, 2000). This initial finding was extended by showing age-related deficits with 5-s unfilled delays, with instructions to rehearse during the delay, and with divided attention during initial retrieval of the intention. Performance increased with a break at the end of the delay period, such that when combined with full attention (during retrieval), older adults' performance approached that of younger adults. These results suggest that age compromises maintenance of information in awareness. Consequently, when forced to delay execution of retrieved intentions, older adults may rely more on plan reformulation and subsequent retrieval of the intention from long-term memory at the end of the delay.  相似文献   
83.
84.
The authors used a unilingual and bilingual primed lexical decision task to investigate priming effects produced by attended and ignored words. In the unilingual experiment, accelerated lexical decisions to probe target words resulted when the word matched the preceding target word, whereas slowed lexical decisions to probe target words resulted when the word matched the preceding ignored nontarget word. In the bilingual (English-Spanish) experiment, between-language, rather than within-language, priming manipulations were used. Although the ignored repetition negative priming effect replicated across languages, cross-language attended repetition positive priming did not. This dissociation of priming effects in the inter- versus intralanguage priming conditions contradicts episodic retrieval accounts of negative priming that deny the existence of selective inhibitory processes. On the other hand, these results support an extension of inhibition-based accounts of negative priming, because they indicate that inhibition can operate at two levels of abstraction--local word and global language--simultaneously.  相似文献   
85.
86.
The ability to code location in continuous space is fundamental to spatial behavior. Existing evidence indicates a robust ability for such coding by 12 months, but systematic evidence on earlier origins is lacking. A series of studies investigated 5-month-olds’ ability to code the location of an object hidden in a sandbox, using a looking-time paradigm. In Experiment 1, after familiarization with a hiding-and-finding sequence at one location, infants looked longer at an object being disclosed from a location 12 inches (30 cm) away than at an object emerging from the hiding location, showing they were able to code location in continuous space. In Experiment 2, infants reacted with greater looking when objects emerged from locations 8 inches (20 cm) away from the hiding location, showing that location coding was more finely grained than could be inferred based on the first study. In Experiment 3, infants were familiarized with an object shown in hiding-and-finding sequences at two different locations. Infants looked longer at objects emerging 12 inches (30 cm) away from the most recent hiding location than to emergence from the other location, showing that infants could code location even when events had previously occurred at each location. In Experiment 4, after familiarization with two objects with different shapes, colors, and sounding characteristics, shown in hiding-and-finding sequences in two locations, infants reacted to location violations as they had in Experiment 3. However, they did not react to object violations, that is, events in which the wrong object emerged from a hiding location. Experiment 5 also found no effect of object violation, even when the infants initially saw the two objects side by side. Spatiotemporal characteristics may play a more central role in early object individuation than they do later, although further study is required.  相似文献   
87.
88.
89.
Play with building toys such as LEGO® sets promotes spatial learning in children. The present study examined the effects of the color of the bricks (either pink or blue) and the femininity/masculinity of the object built on boys’ and girls’ play with LEGO® sets. Children (n = 116, M age  = 7.27 range = 5–10) were given the opportunity to build with LEGO® brick sets, both instructed and free play tasks. For the instructed task, the type of object (feminine: cat; masculine: dinosaur) and color of the bricks (pink, blue) were counterbalanced across participants. Their play was coded for accuracy of following the instructions and time to complete the task. In the free play task, brick color (pink, blue) was counterbalanced across participants, and structures were coded for femininity/masculinity and the number of bricks used. Overall, children took longer to build a feminine object with blue bricks than with pink bricks. In the free-play task, boys built more masculine objects than girls did, regardless of the color of bricks they were given. Results showed that boys completed the LEGO® tasks faster than did girls, controlling for interest in and experience with LEGO® play. These findings suggest that toy color and type can impact how children interact and play with toys.  相似文献   
90.
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