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   1685篇
  免费   220篇
  国内免费   141篇
  2024年   13篇
  2023年   36篇
  2022年   27篇
  2021年   57篇
  2020年   77篇
  2019年   116篇
  2018年   85篇
  2017年   103篇
  2016年   91篇
  2015年   65篇
  2014年   54篇
  2013年   278篇
  2012年   65篇
  2011年   54篇
  2010年   41篇
  2009年   72篇
  2008年   70篇
  2007年   75篇
  2006年   72篇
  2005年   78篇
  2004年   67篇
  2003年   56篇
  2002年   61篇
  2001年   56篇
  2000年   40篇
  1999年   31篇
  1998年   39篇
  1997年   33篇
  1996年   20篇
  1995年   26篇
  1994年   18篇
  1993年   8篇
  1992年   11篇
  1991年   8篇
  1990年   4篇
  1989年   7篇
  1988年   5篇
  1987年   4篇
  1985年   5篇
  1984年   1篇
  1982年   4篇
  1981年   3篇
  1980年   2篇
  1979年   2篇
  1978年   2篇
  1977年   2篇
  1976年   2篇
排序方式: 共有2046条查询结果,搜索用时 15 毫秒
141.
142.
Every day we read about or watch events in the world and can easily understand or remember how long they last. What aspects of an event are retained in memory? And how do we extract temporal information from our memory representations? These issues are central to human cognition, as they underlie a fundamental aspect of our mental life, namely our representation of time. This paper reviews previous language studies and reports a visual learning study indicating that properties of the events encoded in memory shape the representation of their duration. The evidence indicates that for a given event, the extent to which its associated properties or sub-components differ from one another modulates our representation of its duration. These properties include the similarity between sub-events and the similarity between the situational contexts in which an event occurs. We suggest that the diversity of representations that we associate with events in memory plays an important role in remembering and estimating the duration of experienced or described events.  相似文献   
143.
The article argues that the concepts of relational scenario, structuralized affect and actualized affect are proposed candidates for observation of changes in relational ways of being as it is expressed in transference. A psychoanalytic follow‐up interview of a former analytic patient is presented in order to illustrate how change in relational ways of being may be registered and studied. By triangulating the patient's verbal report of change with nonverbal information and transference–countertransference dynamics, one may grasp qualitative changes in relational ways of being. The case presented illustrates a former patient's on‐going process of working towards representing aggression in a more direct manner and how this process is made observable with the aid of the proposed concepts in the interview situation. The proposed concepts of relational scenario, structuralized and actualized affect discussed are compared to the concept of transference used in studies of core conflictual relationship theme (CCRT).  相似文献   
144.
145.
The acquisition of learned behavior involves multiple memory systems, and hippocampal system damage impairs cognitive learning while leaving stimulus-response habit learning intact. In view of evidence that extinction also involves new learning, the present experiments examined whether multiple memory systems theory may be applicable to the neural bases of extinction. Adult Long-Evans rats were trained to run in a straight-alley maze for food reward. Twenty-four hours later, rats matched for runway latencies during acquisition received extinction training. In a response extinction condition conducive to habit learning, rats performed a runway approach response to an empty food cup. In a latent extinction condition conducive to cognitive learning, rats were placed at an empty food cup without performing a runway approach response. Prior to daily extinction training, neural activity of the dorsal hippocampus was reversibly inactivated via infusion of bupivacaine (0.75%, 0.5 microl/side). Control rats receiving saline infusions displayed extinction behavior in both the response and latent training conditions. In contrast, rats receiving bupivacaine extinguished normally in the response condition, but did not display latent extinction. The findings (1) confirm that learning underlying extinction of the same overt behavior can occur with or without explicit performance of the previously acquired response, (2) indicate that extinction learning produced by response and latent training procedures can be neuroanatomically dissociated, and (3) suggest that similarly to initial task acquisition, the hippocampus may critically mediate extinction in situations requiring the use of cognitive learning, such as when performance of a previously acquired response habit is prevented.  相似文献   
146.
Children who are diagnosed with attention deficit hyperactivity disorder (or who engage in behavior consistent with such a diagnosis) are often prescribed stimulant medications for hyperactive or inattentive behaviors. However, the mechanisms by which stimulant medications affect individuals' behavior are rarely evaluated. The purpose of the current study was to evaluate the effects of stimulant medication on response allocation when antecedents and consequences were held constant and equated. Results indicated that the presence of an amphetamine medication (Adderall) influenced response allocation across two concurrently available responses while all other stimulus conditions were held constant.  相似文献   
147.
Cognitive research on metaphoric concepts of time has focused on differences between moving Ego and moving time models, but even more basic is the contrast between Ego‐ and temporal‐reference‐point models. Dynamic models appear to be quasi‐universal cross‐culturally, as does the generalization that in Ego‐reference‐point models, FUTURE IS IN FRONT OF EGO and PAST IS IN BACK OF EGO. The Aymara language instead has a major static model of time wherein FUTURE IS BEHIND EGO and PAST IS IN FRONT OF EGO; linguistic and gestural data give strong confirmation of this unusual culture‐specific cognitive pattern. Gestural data provide crucial information unavailable to purely linguistic analysis, suggesting that when investigating conceptual systems both forms of expression should be analyzed complementarily. Important issues in embodied cognition are raised: how fully shared are bodily grounded motivations for universal cognitive patterns, what makes a rare pattern emerge, and what are the cultural entailments of such patterns?  相似文献   
148.
Although great strides have recently been made in our understanding of relational aggression and its consequences, one significant limitation has been the lack of prospective studies. The present research addressed this issue by identifying and assessing groups of relationally aggressive, physically aggressive, relationally plus physically aggressive (co-morbid), and nonaggressive children during their third grade year in elementary school and then reassessing them a year later, during fourth-grade (N = 224, 113 girls). Two aspects of social–psychological adjustment were assessed during both assessment periods including internalizing difficulties (i.e., withdrawal, depression/anxiety, and somatic complaints) and externalizing problems (i.e., aggressive behavior, delinquency). It was revealed that the strongest predictor of future social–psychological adjustment problems and increases in these problems from third to fourth was the combination of relational and physical aggression. Relational aggression also contributed unique information, relative to physical aggression, in the prediction of future maladjustment. Implications of these findings for future research and prevention efforts, particularly for aggressive girls, are discussed.
Nicki R. CrickEmail:
  相似文献   
149.
Abstract :  Gender assignment, as a key aspect of identity and cultural position, has existed throughout recorded time and across all cultures. An individual's biological sex and particular cultural milieu has a profound effect on their sense of themselves as a gendered being. Sexuality is a more recent marker in identity formation. In the last few decades there has emerged a great deal of interest in the psychology of gender formation, in the interplay of biological sex, culture, brain development, and attachment experiences in the formation of gender identities. Queer theory in its post-modern deconstructionist thinking has suggested that gender is a socially 'constructed' concept having no biological or psychological precursors or realities. Contemporary developmental psychoanalysis is bridging the gap between concepts of gender as purely biological and gender as non-existent. In this paper I explore the emergence of same-sex desire at mid-life, presenting two case histories with extensive dream material. The impact of sexual desire on gender identities is examined through the lenses of culture, dynamic systems theory, neuroscience, and depth psychology. The use of dream analysis as a window into the body/mind movement of gender emergence reflects my sense of gender as a fluidly shifting reality of mind, neither hardwired nor fictional.  相似文献   
150.
This study examined the relations between cultural values (i.e., individualism and collectivism) and aggression among 460 (234 girls) Chinese adolescents. Conflict level and social status insecurity were examined as potential explaining mechanisms for these relations. The results showed that adolescents' endorsement of collectivism was negatively related to their use of overt and relational aggression as reported by teachers and peers, whereas positive associations were found between the endorsement of individualism and adolescent aggression. Adolescents' conflict level and social status insecurity accounted for a significant part of these associations. Findings of this study demonstrate the importance of examining intracultural variations of cultural values in relation to adolescent aggression as well as the process variables in explaining the relations. Aggr. Behav. 36:187–194, 2010. © 2010 Wiley‐Liss, Inc.  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