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   3741篇
  免费   654篇
  国内免费   214篇
  4609篇
  2025年   21篇
  2024年   69篇
  2023年   121篇
  2022年   148篇
  2021年   155篇
  2020年   223篇
  2019年   302篇
  2018年   268篇
  2017年   243篇
  2016年   249篇
  2015年   138篇
  2014年   216篇
  2013年   612篇
  2012年   152篇
  2011年   152篇
  2010年   132篇
  2009年   120篇
  2008年   138篇
  2007年   144篇
  2006年   122篇
  2005年   142篇
  2004年   118篇
  2003年   101篇
  2002年   109篇
  2001年   70篇
  2000年   53篇
  1999年   32篇
  1998年   44篇
  1997年   31篇
  1996年   27篇
  1995年   28篇
  1994年   31篇
  1993年   19篇
  1992年   13篇
  1991年   8篇
  1990年   10篇
  1989年   5篇
  1988年   5篇
  1987年   4篇
  1986年   6篇
  1985年   5篇
  1984年   6篇
  1983年   1篇
  1982年   3篇
  1981年   4篇
  1980年   1篇
  1978年   5篇
  1977年   2篇
  1976年   1篇
排序方式: 共有4609条查询结果,搜索用时 0 毫秒
121.
122.
This paper describes systems dynamics related to deep structure and development processes in human systems, to the process of arresting entropy or premature death in these systems and to the relationship between the cognition of deep structure, its outward manifestation and human systems viability and vitality. The paper proposes that inherent forces are present in systems that act to bring about alignment between inner deep structure and a system's manifested outer structures and processes, thereby enhancing viability and vitality. Deep structure is seen as a force toward self‐organization and rebirth.  相似文献   
123.
Two experiments employed Potential Performance Theory (PPT) to correct for inconsistency in a speeded task. In Experiment 1, a search task was employed whereby participants searched for a target letter among distracters. In Experiment 2, the search task was more complex and naturalistic—participants searched for enemy weapons in aerial photographs. Not surprisingly, the results revealed that longer search times led to greater accuracy. However, this improvement was due only in part to improved search strategies. Much, if not most, of the improvement was due to increased consistency. The authors demonstrate and discuss some of the advantages to be gained by considering a speeded task within the context of a clear and mathematically precise theory (PPT).  相似文献   
124.
Two conditional reasoning tests were administered to 34 students (17 males and 17 females) at each of four grade levels (i.e., 5th, 6th, 7th, and 8th). Both tests contained conditional reasoning arguments which assessed students' comprehension of five basic principles of inference. However, they varied systematically according to the sex typing of the content (i.e., masculine or feminine). The results indicated that there were no significant sex differences according to grade level, type of content, or principle of inference. On the other hand, at each grade level, there were consistent differences among the mean scores for the five principles, and valid principles were significantly easier than invalid principles. The implications of these findings for future research were discussed.  相似文献   
125.
Although previous studies had shown that classical predifferentiation of green (CS-j and red (CS+) cues enabled them to facilitate tracking performance when used as supplementary indicators of correct and incorrect responses respectively, the studies were inconclusive concerning specific conditional properties versus nonspecific arousal consequences of the cues. A sample of 108 Ss was exposed to the same predifferentiation procedure, but then were subgrouped in terms of the kind of feedback signal received in tracking (no signal, red only, green only, both signals). A nonspecificity theory predicts subgroup equality of tracking performances while specificity theory predicts the dependence of performance level on the kind of signal received. Results corroborated previous findings and the view that tracking effects were reasonably attributable to the transfer of specific stimulus functions generated in the differentiation trials.  相似文献   
126.
Abstract

The preliminary results of an evaluation of a systematic assertiveness training programme (based on a cognitive-behavioural approach) in psychiatric care in Hungary are presented. The method adopted was specific to the Hungarian/Middle-European circumstances since people had difficulty in exercising their personal rights in the past. In groups of “neurotic” patients and comparison subjects three questionnaires (the Rathus-scale (R), the Assertiveness Inventory (AI) and the Uncertainty Questionnaire (UQ)) were administered at the beginning and at the end of the treatment. The training programme consisted of eight sessions with an emphasis on education about assertiveness and on the practice of skills such as saying “no” or standing up for oneself. A statistical analysis indicated significant improvement in the social skills of the participants, while an item analysis showed high internal consistency in all three questionnaires, and a concurrent validity analysis revealed a strong correlation between the Rathus-scale and the Assertiveness Inventory. The results indicate that assertiveness training can be used effectively in mental health care in Hungary.  相似文献   
127.
Despite the popularity of the Wason selection task in the psychology of reasoning, doubt remains as to whether card choices actually reflect a process of reasoning. One view is that while participants reason about the cards and their hidden sides—as indicated by protocol analysis—this reasoning merely confabulates explanations for cards that were preconsciously cued. This hypothesis has apparently been supported by studies that show that participants predominantly inspect cards which they end up selecting. In this paper, we reanalyse the data of one such study, which used eye-movement tracking to record card inspection times (Ball, Lucas, Miles, & Gale, 2003). We show that while cards favoured by matching bias are inspected for roughly equal lengths of times, their selection rates are strongly affected by their logical status. These findings strongly support a two-stage account in which attention is necessary but not sufficient for card selections. Hence, reasoning does indeed affect participants' choices on this task.  相似文献   
128.
Until now, error and conflict adaptation have been studied extensively using simple laboratory tasks. A common finding is that responses slow down after errors. According to the conflict monitoring theory, performance should also improve after an error. However, this is usually not observed. In this study, we investigated whether the characteristics of the experimental paradigms normally used could explain this absence. More precisely, these paradigms have in common that behavioural adaptation has little room to be expressed. We therefore studied error and conflict adaptation effects in a task that encounters the richness of everyday life's behavioural adaptation—namely, mental arithmetic, where multiple solution strategies are available. In accordance with our hypothesis, we observed that posterror accuracy increases after errors in mental arithmetic. No support for conflict adaptation in mental arithmetic was found. Implications for current theories of conflict and error monitoring are discussed.  相似文献   
129.
It is widely believed that numbers are spatially represented from left to right on the mental number line. Whether this spatial format of representation is specific to numbers or is shared by non-numerical ordered sequences remains controversial. When healthy participants are asked to randomly generate digits they show a systematic small-number bias that has been interpreted in terms of “pseudoneglect in number space”. Here we used a random generation task to compare numerical and non-numerical order. Participants performed the task at three different pacing rates and with three types of stimuli (numbers, letters, and months). In addition to a small-number bias for numbers, we observed a bias towards “early” items for letters and no bias for months. The spatial biases for numbers and letters were rate independent and similar in size, but they did not correlate across participants. Moreover, letter generation was qualified by a systematic forward direction along the sequence, suggesting that the ordinal dimension was more salient for letters than for numbers in a task that did not require its explicit processing. The dissociation between numerical and non-numerical orders is consistent with electrophysiological and neuroimaging studies and suggests that they rely on at least partially different mechanisms.  相似文献   
130.
Explicitly cued task switching slows performance relative to performing the same task on consecutive trials. This effect appears to be due partly to more efficient encoding of the task cue when the same cue is used on consecutive trials and partly to an additional task-switching process. These components were examined by comparing explicitly cued and voluntary task switching groups, with external cues presented to both groups. Cue-switch effects varied in predictable ways to dissociate explicitly cued and voluntary task switching, whereas task-switch effects had similar characteristics for both instructional groups. The data were well fitted by a mathematical model of task switching that included a cue-encoding mechanism (whereby cue repetition improves performance) and an additional process that was invoked on task-switch trials. Analyses of response-time distributions suggest that this additional process involves task-set reconfiguration that may or may not be engaged before the target stimulus is presented.  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