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   29658篇
  免费   183篇
  国内免费   2篇
  29843篇
  2021年   86篇
  2020年   158篇
  2019年   196篇
  2018年   3637篇
  2017年   2992篇
  2016年   2437篇
  2015年   373篇
  2014年   301篇
  2013年   954篇
  2012年   931篇
  2011年   2735篇
  2010年   2715篇
  2009年   1678篇
  2008年   1963篇
  2007年   2448篇
  2006年   297篇
  2005年   430篇
  2004年   384篇
  2003年   337篇
  2002年   308篇
  2001年   291篇
  2000年   294篇
  1999年   215篇
  1998年   125篇
  1997年   103篇
  1996年   102篇
  1995年   74篇
  1993年   81篇
  1992年   145篇
  1991年   136篇
  1990年   145篇
  1989年   117篇
  1988年   120篇
  1987年   108篇
  1986年   119篇
  1985年   119篇
  1984年   103篇
  1983年   85篇
  1979年   119篇
  1978年   75篇
  1976年   75篇
  1975年   80篇
  1974年   108篇
  1973年   98篇
  1972年   83篇
  1971年   80篇
  1970年   79篇
  1969年   91篇
  1968年   80篇
  1967年   89篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
241.
Past studies of socially desirable self-reports on the items of personality measures have found inconsistent effects of the response bias on the measures' predictive validities, with some studies reporting small effects and other studies reporting large effects. Using Monte Carlo methods, we evaluated various models of socially desirable responding by systematically adding predetermined amounts of the bias to the simulated personality trait scores of hypothetical test respondents before computing test-criterion validity correlations. Our study generally supported previous findings that have reported relatively minor decrements in criterion prediction, even with personality scores that were massively infused with desirability bias. Furthermore, the response bias failed to reveal itself as a statistical moderator of test validity or as a suppressor of validity. Large differences between some respondents' obtained test scores and their true trait scores, however, meant that the personality measure's construct validity would be severely compromised and, more specifically, that estimates of those individuals' criterion performance would be grossly in error. Our discussion focuses on reasons for the discrepant results reported in the literature pertaining to the effect of socially desirable responding on criterion validity. More important, we explain why the lack of effects of desirability bias on the usual indicators of validity, moderation, and suppression should not be surprising.  相似文献   
242.
Based on the evolution of human intelligence and the tremendous cognitive capacities arising from it, we have an innate tendency for the extreme thought content, thought form, and sensory perceptions of psychosis. During the conscious and awake state, cognitive regulatory control processes block these more extreme variants to facilitate reality congruency necessary for adaptive functioning. While asleep there is no need for reality congruency and the cognitive regulatory control processes are deactivated allowing psychotic equivalents to be expressed in dreams. This paper helps synthesize the two dominant perspectives regarding the etiology of psychosis: the neuroscience defect perspective and the psychoanalytic motivational perspective. Regarding the former, defective cognitive regulation arising from certain conditions, such as the deficit state of schizophrenia, allows extreme cognitive distortions, thought form variants, and sensory perceptual experiences to intrude into the conscious and awake state, thereby producing psychosis. Consistent with the psychoanalytic motivational perspective, defensive processes can motivate extreme cognitive distortions, thought form variants and sensory perceptual experiences, and also facilitate their expression by deactivating the relevant cognitive regulatory control processes.  相似文献   
243.
244.
245.
Most research on persuasion examines messages that directly address the attitude of interest. However, especially when message recipients are inclined to resist change, indirect methods might be more effective. Because values are rarely attacked and defended, value change could serve as a useful indirect route for attitude change. Attitudes toward affirmative action changed more when the value of equality was attacked (indirect change) than when affirmative action was directly attacked using the same message (Experiments 1-2). Changes in confidence in the value were responsible for the indirect change when the value was attacked (controlling for changes in favorability toward the value), whereas direct counterarguments to the message were responsible for the relative lack of change when the attitude was attacked directly (Experiment 2). Attacking the value of equality influenced attitudes toward policies related to the value but left policy attitudes unrelated to the value unchanged (Experiment 3). Finally, a manipulation of value confidence that left attitudes toward the value intact demonstrated similar confidence-based influences on policies related to the value of freedom (Experiment 4). Undermined value confidence also resulted in less confidence in the resulting policy attitudes controlling for the changes in the policy attitudes themselves (Experiments 3 and 4). Therefore, indirect change through value attacks presented a double threat-to both the policy attitudes and the confidence with which those policy attitudes were held (potentially leaving them open to additional influence). (PsycINFO Database Record (c) 2012 APA, all rights reserved).  相似文献   
246.
In this paper, the author presents a summary of a brief treatment with a young woman, suffering from severe epileptic illness, which describes the mutuality of cross-transferences of deep and intense feelings and the unorthodox way to receive, to take in persons affected with critical phenomena. This treatment was deeply influenced by the traumatic triad, borrowed from Ferenczi: "amnesia, anaesthesia, aboulia," the ways of forgetting (or erasing) the past/the present/the future. The investigation led us to clarify, on the one hand, the incestophilic-or perhaps incestuous-source in the family, and on the other, the burdensome and tragic genealogy and history of each parent. At the end of this short treatment, which took place at a frequency of one session a week (with the patient sitting, standing, lying on the floor; with sometimes severe fits, deliria, threats; bringing of letters, texts, drawings; and a few phone calls), there was an alleviation of the critical phenomena and revival.  相似文献   
247.
248.
The brain often integrates multisensory sources of information in a way that is close to the optimal according to Bayesian principles. Since sensory modalities are grounded in different, body-relative frames of reference, multisensory integration requires accurate transformations of information. We have shown experimentally, for example, that a rotating tactile stimulus on the palm of the right hand can influence the judgment of ambiguously rotating visual displays. Most significantly, this influence depended on the palm orientation: when facing upwards, a clockwise rotation on the palm yielded a clockwise visual judgment bias; when facing downwards, the same clockwise rotation yielded a counterclockwise bias. Thus, tactile rotation cues biased visual rotation judgment in a head-centered reference frame. Recently, we have generated a modular, multimodal arm model that is able to mimic aspects of such experiments. The model co-represents the state of an arm in several modalities, including a proprioceptive, joint angle modality as well as head-centered orientation and location modalities. Each modality represents each limb or joint separately. Sensory information from the different modalities is exchanged via local forward and inverse kinematic mappings. Also, re-afferent sensory feedback is anticipated and integrated via Kalman filtering. Information across modalities is integrated probabilistically via Bayesian-based plausibility estimates, continuously maintaining a consistent global arm state estimation. This architecture is thus able to model the described effect of posture-dependent motion cue integration: tactile and proprioceptive sensory information may yield top-down biases on visual processing. Equally, such information may influence top-down visual attention, expecting particular arm-dependent motion patterns. Current research implements such effects on visual processing and attention.  相似文献   
249.
In the attentional boost effect, memory for images presented at the same time as unrelated targets (e.g., an orange square) is enhanced relative to images presented at the same time as distractors (e.g., a blue square). One difficulty in understanding the nature of this enhancement is that, in most experiments demonstrating the attentional boost effect, targets have been less common than distractors. As a result, the memory enhancement associated with target detection may have been driven by differences in the relative frequencies of targets and distractors. In four experiments, participants encoded images into memory at the same time that they monitored a second, unrelated stimulus stream for targets. In some conditions, targets were as common as distractors (1:1 ratio); in others, targets were rare (1:6 ratio). The attentional boost effect was present when the target and distractor frequencies were equated, ruling out oddball and distinctiveness effects as explanations. These effects were observed when targets required a buttonpress and when they were covertly counted. Memory enhancements were not observed for images presented at the same time as rare distractor stimuli. We concluded that selectively attending to events that require an overt or covert response enhances the processing of concurrent information.  相似文献   
250.
The current paper describes a rare case of a patient who suffered from unilateral apraxia of eye closure as a result of a bilateral stroke. Interestingly, the patient's ability to voluntarily close both eyelids (i.e. blinking) was not affected, indicating that different neural mechanisms control each type of eye closure. The stroke caused damage to a large part of the right frontal cortex, including the motor cortex, pre-motor cortex and the frontal eye field (FEF). The lesion in the left hemisphere was restricted to the FEF. In order to further study the neural mechanisms of eye closure, we conducted an fMRI study in a group of neurological healthy subjects. We found that all areas of the oculomotor cortex were activated by both left and right winking, including the FEF, supplementary eye field (SEF), and posterior parietal cortex (PPC). Blinking activated FEF and SEF, but not PPC. Both FEF and PPC were significantly more active during winking than blinking. Together, these results provide evidence for a critical role of the FEF in voluntary unilateral eye closure.  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