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   634篇
  免费   73篇
  国内免费   58篇
  2023年   12篇
  2022年   21篇
  2021年   22篇
  2020年   31篇
  2019年   54篇
  2018年   40篇
  2017年   45篇
  2016年   32篇
  2015年   33篇
  2014年   22篇
  2013年   112篇
  2012年   18篇
  2011年   29篇
  2010年   20篇
  2009年   23篇
  2008年   32篇
  2007年   28篇
  2006年   40篇
  2005年   27篇
  2004年   21篇
  2003年   18篇
  2002年   22篇
  2001年   11篇
  2000年   10篇
  1999年   4篇
  1998年   6篇
  1997年   1篇
  1996年   5篇
  1995年   5篇
  1994年   2篇
  1992年   4篇
  1990年   4篇
  1989年   2篇
  1987年   1篇
  1986年   1篇
  1984年   1篇
  1982年   2篇
  1981年   1篇
  1979年   2篇
  1975年   1篇
排序方式: 共有765条查询结果,搜索用时 0 毫秒
621.
Five waves of longitudinal data collected from 349 African American youth living in extreme poverty were used to examine the interrelationship between exposure to violence and parenting during adolescence. Semi-parametric group based modeling was used to identify trajectories of parental monitoring and exposure to violence from T1 to T5. Results from these analyses revealed: (1) a trajectory of declining parental monitoring for 48% of youth; and (2) four distinct trajectories of exposure to violence. Multivariate findings were largely consistent with the ecological-transactional model of community violence. Youth with stable and/or increasing trajectories of exposure to violence were more likely than youth with stable-low exposure to violence to have declining parental monitoring, but additional analyses revealed a similar pattern of findings for younger adolescents (age 9–11 T1), but no evidence of linkages between trajectories of exposure to violence and parental monitoring for older adolescents (age 12–16 T1). The theoretical and policy implications of these findings as well as areas for future research are also discussed.  相似文献   
622.
Theories of human action control deal with the question of how cognitive control is dynamically adjusted to task demands. The conflict monitoring theory of anterior cingulate (ACC) function suggests that the ACC monitors for response conflicts in the ongoing processing stream thereby triggering the mobilization of cognitive control. Alternatively, the outcome evaluation account of ACC function suggests that the ACC monitors for negative performance outcomes, an information that serves as an aversive learning signal for future action selection. Botvinick (2007) recently suggested that both theories might converge on the detection of aversive signals in general. Here, the authors provide first evidence that conflicts are registered as aversive signals. Congruent and incongruent Stroop color-words served as primes, and positive and negative stimuli as targets in an affective priming paradigm. Negative targets were evaluated faster after incongruent than after congruent Stroop primes, and positive targets were evaluated slower after incongruent than after congruent primes. The finding that conflicts are actually registered as aversive signals bridges the gap between competing theories of ACC function and has broad theoretical and behavioral implications as it makes the conflict monitoring theory applicable to a much wider range of situations and tasks.  相似文献   
623.
Previous research on the lateralization of memory errors suggests that the right hemisphere's tendency to produce more memory errors than the left hemisphere reflects hemispheric differences in semantic activation. However, all prior research that has examined the lateralization of memory errors has used self-paced recognition judgments. Because activation occurs early in memory retrieval, with more time to make a decision, other memory processes, like strategic monitoring processes, may affect memory errors. By manipulating the time subjects were given to make memory decisions, this study separated the influence of automatic memory processes (activation) from strategic memory processes (monitoring) on the production of false memories. The results indicated that when retrieval was fast, the right hemisphere produced more memory errors than the left hemisphere. However, when retrieval was slow, the left hemisphere's error-proneness increased compared to the fast retrieval condition, while the right hemisphere's error-proneness remained the same. These results suggest that the right hemisphere's errors are largely due to activation, while the left hemisphere's errors are influenced by both activation and monitoring.  相似文献   
624.
The purpose of this study was to examine the progress monitoring and screening accuracy for a set of curriculum-based measures (CBM) of early mathematics skills. Measures included counting objects, selecting numbers, naming numbers, counting, and visual discrimination. Measures were designed to be administered with preschoolers in a short period of time using a developmentally appropriate format, and to constitute minimal disruption to the classroom routine. Previous research indicated that each of these measures produced scores with acceptable consistency across alternate forms on consecutive days. Scores yielded on the experimental probes correlated moderately, in most cases, with two commonly used standardized measures (i.e., the Brigance Screens and TEMA-2). Performance on the probes also correlated with teacher rankings and ratings of child performance. In the present study, data were collected in two phases. In the first phase, a cohort of children were administered the early math measures in spring of preschool and were followed into winter of kindergarten where they were administered kindergarten CBM probes to examine the degree to which performance in preschool (as measured by the early math probes) could predict performance on similar tasks in kindergarten. Second, risk criteria were examined and compared to identification by the Brigance Screens. These analyses provided data about the potential accuracy of the probes for screening. In the second phase, sensitivity of the probes to performance differences was examined by comparing mean performance on the probes of preschoolers and kindergartners. The lowest-performing children were provided with seven intervention sessions to examine the degree to which probes could detect growth resulting from intervention. Directions for future research and implications for practice are discussed.  相似文献   
625.
626.
The author attempts to distinguish between the world of fantasy and the imagination (which fuels our capacity to ‘dream’) from a withdrawal into fantasy. In this withdrawal, the foundations of which are laid in childhood, a dissociation from psychic reality starts and from it the delusional world arises and constitutes the adult illness. During therapies of adult patients who have experienced a psychotic state, it is often possible to reconstruct the state of infantile withdrawal and understand how their dissociation from reality was ignored or unknowingly encouraged by their parents. Children destined to develop psychosis enter into the dissociated world not just as a defence against anguish or loneliness, but also for the pleasure of experiencing a delusional self‐suffi ciency and a gratifying omnipotence in which anything is possible. Mental workings that take place in the withdrawal do not follow the rules governing normal psychic functioning. Those fantasies cannot be either repressed or ‘dreamed’ in order to be transformed into thoughts. These psychopathological structures, which develop early and autonomously, have to be understood during analytical therapy in their origins and ‘deconstructed’ in order to help the patient to escape from their dominion. By means of clinical examples, the author tries to shed light on the possible ways of reaching patients in their psychotic shelters, thereby helping them to re‐emerge into a psychic reality.  相似文献   
627.
Abstract: The aim of this article is to expand the diet of examples considered in philosophical discussions of imagination and pretense, and to offer some preliminary observations about what we might learn about the nature of imagination as a result. The article presents a number of cases involving imaginative contagion: cases where merely imagining or pretending that P has effects that we would expect only perceiving or believing that P to have. Examples are offered that involve visual imagery, motor imagery, fictional emotions, and social priming. It is suggested that imaginative contagion is a more prevalent phenomenon than has typically been recognized.  相似文献   
628.
Lothar Schfer 《Zygon》2006,41(3):573-582
Abstract. I respond to Ervin Laszlo's suggestions and criticism regarding my essay in this issue of Zygon. Virtual atomic orbitals are used as a model to illustrate the existence of a general realm of potentiality in physical reality from which the actual world emanates. Laszlo's suggestions for “paradigm repair” are supported and accepted as essentially being in agreement with my intentions and as offering highly useful clarifications. I compare virtual states to historic ideas of forms as metaphysical principles of being that inspire thoughts regarding the actions of a Cosmic Consciousness in the processes of the universe. Metaphysical and theological interpretations of the results of scientific research are defended, provided that they are not used to interfere a priori with the technical program of scientific research.  相似文献   
629.
An evaluation was made of reality orientation therapy utilizing 14 male patients with dementias of various types. The therapy is designed to improve memory and reduce confusion in elderly and demented individuals. Utilizing a group comparison with crossover design, it was found that the patients improved significantly over sessions on orientation items actually taught during those sessions. However, no significant improvement was found on a series of generalization items consisting of orientation-related questions that were not asked during sessions. Furthermore, there was no generalization to ward activities. It was noted that individual responses to the treatment were quite varied, and so three cases reflecting highly different responses are presented.Indebtedness is expressed to the Veterans Administration for support of this research.  相似文献   
630.
The purpose of the study was to compare the accuracies obtained from whole interval, partial interval, and momentary time-sample recording procedures. Two types of accuracies were defined. Between-methods accuracy is the degree to which an observer using a particular recording method agrees with a standard using a continuous recording method. Within-methods accuracy is the degree to which an observer and a standard agree when both use the same recording method. Fifty-four undergraduate students viewed a videotape of a woman twisting her hair and recorded the occurrence or nonoccurrence of the behavior using one of the three recording methods. Tapes were divided into segments with low, intermediate, and high rates of behavior. Partial and whole interval recording obtained poorer between-methods accuracies than momentary time sampling. Results showed that whole interval and momentary time-sampling procedures yielded higher within-method accuracies than partial interval recording. Thus, momentary time-sampling recording provided the advantages of both greater representativeness and as few or fewer observer errors than whole or partial interval recording procedures. Use of the interval recording methods by researchers must be justifiable within this framework.  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