全文获取类型
收费全文 | 1723篇 |
免费 | 68篇 |
出版年
2023年 | 11篇 |
2021年 | 22篇 |
2020年 | 33篇 |
2019年 | 47篇 |
2018年 | 58篇 |
2017年 | 41篇 |
2016年 | 60篇 |
2015年 | 41篇 |
2014年 | 32篇 |
2013年 | 190篇 |
2012年 | 65篇 |
2011年 | 71篇 |
2010年 | 40篇 |
2009年 | 45篇 |
2008年 | 48篇 |
2007年 | 55篇 |
2006年 | 44篇 |
2005年 | 54篇 |
2004年 | 52篇 |
2003年 | 59篇 |
2002年 | 48篇 |
2001年 | 24篇 |
2000年 | 39篇 |
1999年 | 33篇 |
1998年 | 18篇 |
1997年 | 25篇 |
1996年 | 25篇 |
1995年 | 19篇 |
1994年 | 17篇 |
1993年 | 14篇 |
1992年 | 28篇 |
1991年 | 12篇 |
1990年 | 22篇 |
1989年 | 17篇 |
1988年 | 24篇 |
1987年 | 28篇 |
1986年 | 15篇 |
1985年 | 18篇 |
1984年 | 20篇 |
1983年 | 18篇 |
1982年 | 15篇 |
1981年 | 18篇 |
1980年 | 17篇 |
1978年 | 26篇 |
1977年 | 20篇 |
1976年 | 15篇 |
1975年 | 24篇 |
1974年 | 18篇 |
1973年 | 14篇 |
1966年 | 15篇 |
排序方式: 共有1791条查询结果,搜索用时 15 毫秒
171.
Subjects typically experience the temporal interval immediately following a saccade as longer than a comparable control interval. One explanation of this effect is that the brain antedates the perceptual onset of a saccade target to around the time of saccade initiation. This could explain the apparent continuity of visual perception across eye movements. This antedating account was tested in three experiments in which subjects made saccades of differing extents and then judged either the duration or the temporal order of key events. Postsaccadic stimuli underwent subjective temporal lengthening and had early perceived onsets. A temporally advanced awareness of saccade completion was also found, independently of antedating effects. These results provide convergent evidence supporting antedating and differentiating it from other temporal biases. 相似文献
172.
Recent experimentation has shown that cognitive aptitude measures are predicted by tests of the scope of an individual's attention or capacity in simple working memory tasks and also by the ability to control attention. However, these experiments do not indicate how separate or related the scope and control of attention are. An experiment with 52 children (10 to 11 years old) and 52 college students included measures of the scope and control of attention, as well as verbal and nonverbal aptitude measures. The children showed little evidence of using sophisticated attentional control, but the scope of attention predicted intelligence in that group. In adults, both the scope and control of attention varied among individuals and accounted for considerable individual variance in intelligence. About one third that variance was shared between scope an d control, and the rest was unique to one or the other.Scope and control of attention appear to be related but distinct contributors to intelligence. 相似文献
173.
174.
175.
176.
177.
Nicole Nelson 《Science as culture》2013,22(2):205-232
Using oral histories with scientists, technology transfer managers and other collaborators who were involved with the development of the biolistic gene gun, I investigate how actors narrate their experiences of technology transfer. The individuals who worked on the gene gun draw on two different interpretive repertoires for describing the innovation process: a ‘localized’ repertoire that highlights defined moments and the conceptual contributions of a few individuals; and a ‘distributed’ repertoire that emphasizes longer time frames, the process of technical implementation and the importance of a network of collaborators. Each of these repertoires identifies a different assemblage of actors as deserving of credit and reward for the development of the gene gun. Examining how scientists employ these modes of describing the innovation process offers a way of thinking about how university inventors negotiate tensions around novel features of academic capitalism, such as personal profit arising from the commercialization of university technologies. 相似文献
178.
Dr Karen Salmon Fern Champion Margaret-Ellen Pipe Louise Mewton Skye McDonald 《Memory (Hove, England)》2013,21(5):485-499
We investigated the influence of preparation provided by parents on preschoolers’ recall. One day before children participated in a staged novel event, parents discussed the event with their child either with (verbal+photos) or without (verbal) photographs. Parents and children in a control condition read an unrelated story. Then 8–10 days later the children were interviewed about the event. Children in the verbal+photos condition recalled significantly more than those in the control condition. Parental preparation style (e.g., evaluations, hypothetical language) was associated with the child's contributions to the preparatory discussion, but no aspect of parent or child style or content was associated with children's verbal recall. Similarly, there were no significant associations between children's performance on a task of episodic future thinking, and their preparatory discussion or recall, although episodic future thinking was strongly associated with language ability. The potential underlying mechanisms and theoretical implications are discussed. 相似文献
179.
Abstract The present paper provides a conceptual basis for the examination of mood in sport. The nature of the mood construct is discussed with reference to related constructs. A conceptual model is presented which proposes that certain mood dimensions interact to influence behavior. Depression is proposed to be the most important mood dimension, influencing the intensity of mood responses, the interrelationships among other mood dimensions, and moderating mood and performance relationships for anger and tension. It is hoped that the conceptual model will help guide applied interventions and will act as a catalyst for future research. 相似文献
180.
Mengfei Cai Sam A. Hardy Joseph A. Olsen David A. Nelson Niwako Yamawaki 《International journal of psychology》2013,48(6):1185-1190
The purpose of this study was to examine links between parenting dimensions (authoritative parenting, psychological control, and parental authority) and adolescent wellbeing (self‐esteem, autonomy, and peer attachments) as mediated by parent–teen attachment, among Chinese families. The sample included 298 Chinese adolescents, ages 15–18 years (M age = 16.36, SD = .68; 60% female). The mediation model was examined using path analyses (one model with parental authority as overprotection, and one with it as perceived behavioral control). To improve model fit a direct path was added from authoritative parenting to autonomy. Authoritative parenting was positively predictive of attachment, while psychological control and overprotection (but not behavioral control) were negative predictors. In turn, adolescent–parent attachment was positively related to the three outcomes. Lastly, the model paths did not differ by adolescent gender. These findings suggest that parenting behaviors may play a crucial role in adolescent social behaviors and wellbeing via adolescent–parent attachment. 相似文献