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   3212篇
  免费   186篇
  国内免费   10篇
  2023年   44篇
  2022年   35篇
  2021年   41篇
  2020年   90篇
  2019年   94篇
  2018年   121篇
  2017年   119篇
  2016年   135篇
  2015年   70篇
  2014年   99篇
  2013年   361篇
  2012年   152篇
  2011年   177篇
  2010年   109篇
  2009年   100篇
  2008年   126篇
  2007年   145篇
  2006年   120篇
  2005年   107篇
  2004年   94篇
  2003年   90篇
  2002年   100篇
  2001年   69篇
  2000年   41篇
  1999年   40篇
  1998年   29篇
  1997年   31篇
  1996年   26篇
  1995年   35篇
  1994年   39篇
  1993年   24篇
  1992年   38篇
  1991年   27篇
  1990年   22篇
  1989年   25篇
  1988年   31篇
  1987年   21篇
  1986年   28篇
  1985年   28篇
  1984年   18篇
  1983年   19篇
  1982年   21篇
  1979年   19篇
  1978年   30篇
  1977年   20篇
  1975年   17篇
  1974年   23篇
  1973年   17篇
  1972年   18篇
  1971年   14篇
排序方式: 共有3408条查询结果,搜索用时 15 毫秒
991.
Journal of Happiness Studies - Optimism has been linked to better physical health across various outcomes, including greater longevity. However, most evidence is from Western populations, leaving...  相似文献   
992.
The visual percept fluctuates over time when dissimilar patterns are shown to the two eyes (binocular rivalry). Where in the brain are the corresponding fluctuations of neuronal activity? Conflicting results from studies using various techniques have rendered this question unresolved at present. A recent paper by Wilson, however, promises to reconcile previous disagreements, as it demonstrates that rivalry can be located at different stages of the neuronal hierarchy, depending on the nature of stimulation.  相似文献   
993.
Given the increasing complexity of the tasks and skills needed in modern society, developing effective training strategies is of tremendous practical importance. Furthermore, training that improves performance of both trained and untrained tasks would be highly efficient. In the present study, we examined how directed training contributes to skill acquisition, and more importantly, to engendering transfer of training to untrained tasks. Participants learned a complex video game for 30 h (Space Fortress, Donchin, Fabiani, & Sanders, 1989) using one of two training regimens: Hybrid Variable-Priority Training (HVT), with a focus on improving specific skills and managing task priority, or Full Emphasis Training (FET) in which participants simply practiced the game to obtain the highest overall score. We compared game performance, retention of training gains, and transfer of training to untrained tasks as a function of the training regimen. Compared to FET, HVT learners reached higher levels of mastery on the game and HVT was particularly beneficial for initially poor performing participants. This benefit persisted seven months after training. However, contrary to expectation, both HVT and FET were unsuccessful in producing transfer to untrained tasks compared to a group that received limited game experience, suggesting that directed training and practice can produce task-specific improvements, but improvements do not necessarily transfer from trained to untrained tasks.  相似文献   
994.
Background: Exposure to mathematical pattern tasks is often deemed important for developing children's algebraic thinking skills. Yet, there is a dearth of evidence on the cognitive underpinnings of pattern tasks and how early competencies on these tasks are related to later development. Aims: We examined the domain‐specific and domain‐general determinants of performances on pattern tasks by using (a) a standardized test of numerical and arithmetic proficiency and (b) measures of executive functioning, respectively. Sample: Participants were 163 6‐year‐olds enrolled in primary schools that typically serve families from low to middle socioeconomic backgrounds. Method: Children were administered a battery of executive functioning (inhibitory, switching, updating), numerical and arithmetic proficiency (the Numerical Operations task from the Wechsler Individual Achievement Test‐II), and three types of pattern tasks. Results: Contrary to findings from the adult literature, we found all the executive functioning measures coalesced into two factors: updating and an inhibition/switch factor. Only the updating factor predicted performances on the pattern tasks. Although performance on the pattern tasks were correlated with numerical and arithmetic proficiency, findings from structural equation modelling showed that there were no direct or independent relationships between them. Conclusions: The findings suggest that the bivariate relationships between pattern, numeracy, and arithmetic tasks are likely due to their shared demands on updating resources. Unlike older children, these findings suggest that for 6‐year‐olds, better numerical and arithmetic proficiency, without accompanying advantages in updating capacities, will no more likely lead to better performance on the pattern tasks.  相似文献   
995.
Two experiments, using computer avatars, examined the role of coaction contexts (competition versus cooperation) in distinctiveness-based stereotype threat. In Experiment 1, African-American participants performed an anagram-solving task with two ostensible coactors either in a high-distinctiveness (participant being a numerical minority with two Caucasian coactors) or in a low-distinctiveness (racial-cues absent with silhouette-image avatars) environment; coaction contexts were structured either in terms of competition or in terms of cooperation. Participants situated in the high-distinctiveness environment performed better when they engaged in cooperation than in competition whereas those in the low-distinctive environment did not show a significant difference. In Experiment 2, which was conducted to replicate and extend Experiment 1 with a different social category/domain, females took a mathematics test with two ostensible coactors. Whereas the competition versus cooperation difference was not significant among participants placed in a low-distinctiveness (female-majority or all-female) environment, participants situated in a high-distinctiveness (female-minority) environment showed significantly lower levels of stereotype-associated concerns and better performance on the math test in cooperation than in competition. Our findings suggest that distinctiveness-based stereotype threat is less likely to occur when the context of group performance is framed as cooperation as opposed to competition.  相似文献   
996.
Prior research has documented that Japanese children's performance on the Dimensional Change Card Sorting (DCCS) task can be influenced by their observation of another person completing the task, which is referred to as social transmission of disinhibition. The current study explored whether Canadian children would also show a social transmission of disinhibition and whether their performance would be comparable to that of Japanese children. In this study, 3- and 4-year-olds in Canada and Japan were given both the standard version and social version of the DCCS. Results indicated that Canadian children displayed the social transmission of disinhibition, but their effects were significantly weaker than those with Japanese children. On the other hand, performance on the standard DCCS was comparable between children in the two countries. We discuss the results in terms of cultural differences in the relationship between self and other.  相似文献   
997.
Perceptual narrowing in the visual, auditory, and multisensory domains has its developmental origins during infancy. The current study shows that experimentally induced experience can reverse the effects of perceptual narrowing on infants' visual recognition memory of other-race faces. Caucasian 8- to 10-month-olds who could not discriminate between novel and familiarized Asian faces at the beginning of testing were given brief daily experience with Asian female faces in the experimental condition and Caucasian female faces in the control condition. At the end of 3 weeks, only infants who received daily experience with Asian females showed above-chance recognition of novel Asian female and male faces. Furthermore, infants in the experimental condition showed greater efficiency in learning novel Asian females compared with infants in the control condition. Thus, visual experience with a novel stimulus category can reverse the effects of perceptual narrowing during infancy via improved stimulus recognition and encoding.  相似文献   
998.
Animal personalities have been demonstrated for almost 200 species, with stable dimensions of responses (aggressive to fearful; shy to bold) across contexts and with a heritable basis to these traits. As a long-lived and highly social species, elephants (Loxodonta africana) were expected to demonstrate complex dimensions to individual characteristics or personalities, which would be obvious to human observers and validated by behavioral observations. We used principal-components analysis of ratings on 26 behavioral adjectives applied to one social unit, coded as the EB family, which has been observed for 38 years. Eleven adult females were rated by four observers and found to have individually variable traits on four dimensions described by principal-components analysis. The first component was associated with effective and confident family leadership. Component 2 was age-related, and defined by playfulness, exploration and high levels of activity, suggesting both an experience and an age-related element to its structure. Component 3 represented gentleness and at its other extreme, aggression, and Component 4 was related to constancy (predictability and popularity), with both of these latter components reflecting social integration. Leadership among elephant females represents the successful negotiation among individual interests, and our components were related to a capacity to affect the behavior of others in the absence of aggressive dominance. The family matriarch, Echo, was high on elements associated with leadership. The importance of the matriarch in this family's success suggests that elements of personality may underlie interfamilial variation in long-term survival and reproduction. (PsycINFO Database Record (c) 2012 APA, all rights reserved).  相似文献   
999.
In this study, the authors examined geographically close (GCRs) and long-distance (LDRs) romantic relationship satisfaction as explained by insecure attachment, self-disclosure, gossip, and idealization. After college student participants (N = 536) completed a Web survey, structural equation modeling (SEM) multigroup analysis revealed that the GCR and LDR models were nonequivalent, as expected. Self-disclosure mediated the insecure attachment-idealization path differently in GCRs and in LDRs. Self-disclosure was positively associated with idealization in GCRs and negatively associated with idealization in LDRs, with the insecure attachment-idealization and the insecure attachment-satisfaction paths negative for both GCRs and LDRs. Furthermore, the insecure attachment-idealization path was stronger than the mediated path, especially for LDRs; the insecure attachment-satisfaction path was stronger than the mediation model for GCRs and LDRs. In other words, the GCR and LDR models differed despite some similarities. For both, with higher insecure (i.e., anxious and avoidant) attachment, the person discloses less to the partner, idealizes the partner less, and is less satisfied with the relationship. Also, people who idealize are more satisfied. In contrast, in LDRs only, with higher insecure attachment, the people tend to gossip more. With higher insecure attachment and with higher self-disclosure, people idealize more in GCRs but idealize less in LDRs. Overall, attachment insecurity explained more idealization and satisfaction in LDRs than in GCRs. Implications are discussed.  相似文献   
1000.
We conducted an exploratory content analysis of disability research in 5 major counseling psychology journals between 1990 and 2010. The goal was to review the counseling psychology literature to better understand the prevalence of disability research, identify research methods most often conducted, and elucidate the types of concerns most studied. We searched 5 journals (Journal of Counseling & Development, Journal of Counseling Psychology, The Counseling Psychologist, Journal of Multicultural Counseling and Development, and Cultural Diversity and Ethnic Minority Psychology) using keywords derived from disability terms defined by the Individuals With Disabilities Education Improvement Act of 2004 (IDEA). Articles were categorized by methodology and disability category examined. We found that disability research continues to comprise an extremely small amount (from less than 1% to 2.7%) of the counseling psychology literature, with the frequency of articles plateauing in recent years. The research design of articles published has changed, with an increased number of empirical articles and a decrease in literature reviews. We conclude by calling for increased empirical investigation of disability among journals specific to counseling psychology to recognize disability as an important aspect of diversity within the field.  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