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51.
Sommer T Rose M Büchel C 《Journal of experimental psychology. Learning, memory, and cognition》2007,33(1):90-106
The formation of associations between objects and locations is a vital aspect of episodic memory. More specifically, remembering the location where one experienced an object and, vice versa, the object one encountered at a specific location are both important elements for the memory of an event. Whether episodic associations are holistic representations of individual components or whether there are unidirectional, separately modifiable connections between them has been investigated nearly exclusively using verbal stimuli. A preliminary conclusion concerning this controversy is that verbal associations are, at least, highly correlated (M. J. Kahana, 2002). This theoretical debate, which in the past has undergone a major empirical effort, is still of relevance for the concurrent global matching models of associative memory (S. E. Clark & S. D. Gronlund, 1996). The authors used variations of a novel object-location learning paradigm to complement the accumulated evidence regarding the nature of episodic associations. 相似文献
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Sommer R 《Journal of the history of the behavioral sciences》2007,43(3):305-313
Both of Thorstein Veblen's wives and another woman he loved had nervous breakdowns, while a fourth woman to whom he was emotionally very close committed suicide. Yet when Veblen published an article entitled "Dementia praecox," he did not mention his personal contact with serious mental disorder. This detachment is consistent with Veblen's approach to writing. Veblen considered himself to be a detached observer who wrote objectively about society rather than subjectively about himself. 相似文献
54.
Jaap Schuitema Wiel Veugelers Gert Rijlaarsdam Geert ten Dam 《The British journal of educational psychology》2009,79(3):439-461
Background Despite the renewed interest in citizenship education, relatively little is known about effective ways to realize citizenship education in the classroom. In the literature on citizenship education, dialogue is considered to be a crucial element. However, there is very little, if any, empirical research into the different ways to stimulate dialogue. Aim The main aim of this study is to arrive at an understanding of how citizenship education can be integrated in history classes. The focus is on the effect of a dialogic approach to citizenship education on students' ability to justify an opinion on moral issues. Sample Four hundred and eighty‐two students in the eighth grade of secondary education. Methods Two curriculum units for dialogic citizenship education were developed and implemented. The two curriculum units differed in the balance between group work and whole‐class teaching. Students' ability to justify an opinion was assessed by means of short essays written by students on a moral issue. The effectiveness of both curriculum units was compared with regular history classes. Results Students who participated in the lessons for dialogic citizenship education were able to justify their opinion better than students who participated in regular history lessons. The results further show a positive effect of the amount of group work involved. Conclusion The results of this study indicate that a dialogic approach to citizenship education as an integral part of history classes helps students to form a more profound opinion about moral issues in the subject matter. In addition, group work seems to be a more effective method to implement dialogue in the classroom than whole‐class teaching. 相似文献
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Recent research suggests that emotion effects in word processing resemble those in other stimulus domains such as pictures or faces. The present study aims to provide more direct evidence for this notion by comparing emotion effects in word and face processing in a within-subject design. Event-related brain potentials (ERPs) were recorded as participants made decisions on the lexicality of emotionally positive, negative, and neutral German verbs or pseudowords, and on the integrity of intact happy, angry, and neutral faces or slightly distorted faces. Relative to neutral and negative stimuli both positive verbs and happy faces elicited posterior ERP negativities that were indistinguishable in scalp distribution and resembled the early posterior negativities reported by others. Importantly, these ERP modulations appeared at very different latencies. Therefore, it appears that similar brain systems reflect the decoding of both biological and symbolic emotional signals of positive valence, differing mainly in the speed of meaning access, which is more direct and faster for facial expressions than for words. 相似文献
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The emotional content of stimuli influences cognitive performance. In two experiments, we investigated the time course and
mechanisms of emotional influences on visual word processing in various tasks by recording event-related brain potentials
(ERPs). The stimuli were verbs of positive, negative, and neutral valence. In Experiment 1, where lexical decisions had to
be performed on single verbs, both positive and negative verbs were processed more quickly than neutral verbs and elicited
a distinct ERP component, starting around 370 msec. In Experiment 2, the verbs were embedded in a semantic context provided
by single nouns. Likewise, structural, lexical, and semantic decisions for positive verbs were accelerated, and an ERP effect
with a scalp distribution comparable to that in Experiment 1 now started about 200 msec earlier. These effects may signal
an automatic allocation of attentional resources to emotionally arousing words, since they were not modulated by different
task demands. In contrast, a later ERP effect of emotion was restricted to lexical and semantic decisions and, thus, appears
to indicate more elaborated, task-dependent processing of emotional words. 相似文献
58.
Practice effects on dual-task processing are of interest in current research because they may reveal the scope and limits of parallel task processing. Here we used onsets of the lateralized readiness potential (LRP), a time marker for the termination of response selection, to assess processing changes after five consecutive dual-task sessions with three stimulus onset asynchronies (SOAs) and priority on Task 1. Practice reduced reaction times in both tasks and the interference between tasks. As indicated by the LRP, the reduction of dual-task costs can be explained most parsimoniously by a shortening of the temporal demands of central bottleneck stages, without assuming parallel processing. However, the LRP also revealed a hitherto unreported early activation over the parietal scalp after practice in the short SOA condition, possibly indicating the isolation of stimulus-response translation from other central processing stages. In addition, further evidence was obtained from the LRP for a late motoric bottleneck, which is robust against practice. 相似文献
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