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871.
Recent analyses of serial correlations in cognitive tasks have provided preliminary evidence of the presence of a particular
form of long-range serial dependence known as 1/fnoise. It has been argued that long-range dependence has been largely ignored in mainstream cognitive psychology even though it
accounts for a substantial proportion of variability in behavior (see, e.g., Gilden, 1997, 2001). In this article, we discuss
the defining characteristics of long-range dependence and argue that claims about its presence need to be evaluated by testing
against the alternative hypothesis of short-range dependence. For the data from three experiments, we accomplish such tests
with autoregressive fractionally integrated moving-average time series modeling. We find that long-range serial dependence
in these experiments can be explained by any of several mechanisms, including mixtures of a small number of short-range processes. 相似文献
872.
Dual Identification and the (De‐)Politicization of Migrants: Longitudinal and Comparative Evidence 下载免费PDF全文
Bernd Simon Frank Reichert Christoph Daniel Schaefer Anne Bachmann Daniela Renger 《Journal of community & applied social psychology》2015,25(3):193-203
The article examines the role of dual identification with both the ethnocultural ingroup and the society of residence in the politicization of migrants. The researchers employed a longitudinal and comparative research design with members of the two largest, but sociologically very different, migrant groups in Germany as research participants (i.e. Turkish migrants and Russian migrants). In line with prior work that has shown that, among members of aggrieved groups, dual identity functions as a politicized collective identity, we found that dual identification fostered political engagement among Turkish migrants. In contrast, Russian migrants reported no substantial grievances, and dual identification negatively affected their subsequent political engagement. The contributions of these findings to an articulation of research on politicization with research on intergroup conflict and a more comprehensive understanding of political phenomena driven by dual identification are discussed. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
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Visual object perception is usually studied by presenting one object at a time at the fovea. However, the world around us is composed of multiple objects. The way our visual system deals with this complexity has remained controversial in the literature. Some models claim that the ventral pathway, a set of visual cortical areas responsible for object recognition, can process only one or very few objects at a time without ambiguity. Other models argue in favor of a massively parallel processing of objects in a scene. Recent experiments in monkeys have provided important data about this issue. The ventral pathway seems to be able to perform complex analyses on several objects simultaneously, but only during a short time period. Subsequently only one or very few objects are explicitly selected and consciously perceived. Here, we survey the implications of these new findings for our understanding of object processing. 相似文献
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By taking the MAX from their inputs, neurons in the ventral visual pathway might preserve their selectivity even when stimulated with natural scenes. This computational hypothesis has received recent direct physiological evidence from recordings of V4 neuronal responses, in a recent study by Gawne and Martin (2002). Object vision might rely more heavily on parallel processing than generally thought. 相似文献
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Building on an articulation of two influential social-psychological approaches, this chapter suggests a dual-pathway model of collective action. In line with traditional social movement research, one pathway concerns the calculation of the costs and benefits of participation; the other pathway concerns collective identification processes as suggested by the social identity approach. Whereas the model's calculation pathway can be interpreted in terms of group members' instrumental involvement motivated by specific extrinsic rewards, the identification pathway seems to represent intrinsic involvement based on the internalisation of group-specific behavioural standards. Both pathways seem to operate independently, such that group members are pulled towards collective action by the expected external rewards while simultaneously being pushed towards this activity by an inner obligation to enact their (politicised) collective identity. Further applications of this model to forms of collective action other than social movement participation (e.g., collective helping) are discussed. 相似文献