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201.
202.
We examined social comparisons made by women with breast cancer who participated in peer‐support interventions. This setting. in which participants were exposed to similar others, allowed for a longitudinal investigation of the frequency, antecedents. and consequences of social comparison. Consistent with the literature, the majority of comparisons were made to worse‐off others (downward), and the majority of comparisons were associated with positive affect (positive comparisons). Low self‐esteem. low internal locus of control, and high illness uncertainty were associated with making more negative comparisons. In addition, negative comparisons were associated with a decrease in perceived control and an increase in uncertainty over time. whereas positive doanbard comparisons were associated with an increase in self‐esteem. Implications for support groups are discussed.  相似文献   
203.
Observational and self-report data were obtained in the homes of 33 mother-child dyads. These volunteer, normal subjects were monitored with respect to their affectionate and aversive interactions, and the mothers were asked to provide three categories of self-report data. Mothers made observational judgments of their children, their own feelings of depression, and the valences of their interactions with adults. Multiple regression analyses were then employed to predict the mothers' child care behaviors, which were composed of observed mother responses and mother observational judgments. In addition, conditional probability analyses were conducted to examine the directionality of correlations between observed mother-child interchanges. Results showed child behavior to be the best single predictor of how the mothers responded to their children, followed by maternal depression and mother coercive interactions with adults. Child behavior was shown to be a significant antecedent cue for the maternal responses. However, the findings also showed that mother observational judgments about their children had little to do with how the children behaved. Rather, the maternal judgments were best predicted by mother depression, mother coercive interchanges with adults, and the mothers' observed aversive responses to their children. Results were interpreted within a systems framework in which maternal care is viewed as a response that is triangulated by adult-and child-produced stimuli.  相似文献   
204.
Mental rotation of faces   总被引:2,自引:0,他引:2  
The effect of orientation upon face recognition was explored in two experiments, which used a procedure adapted from the mental rotation literature. In the first experiment, a linear increase in the RT of same-different judgments was found as the second of a pair of sequentially presented faces was rotated away from the vertical. Also, it was found that the effect of changing facial expression did not interact with orientation. In the second experiment, a linear relationship between RT and orientation was found in a task involving the recognition of famous faces. This recognition task was found to be more affected by inversion than was an expression classification task. These results are interpreted as evidence against the view that inverted faces are processed in a qualitatively different manner from upright faces, and are also inconsistent with the hypothesis that inversion makes faces difficult to recognize because facial expression cannot be extracted from an inverted face.  相似文献   
205.
Previous research (Davies, Ellis and Shepherd, 1978; Rhodes, Brennan and Carey, 1987) has shown that accurate line drawings of familiar faces are identified rather poorly. However, artists can produce lifelike portraits with pen and ink, and Pearson and Robinson (1985) described an automatic method for producing computer-drawn sketches (‘cartoons’) of faces which appear very similar to those produced by a human artist. In this paper we show that subjects can identify famous faces depicted in such computer-drawn ‘cartoons’ almost as well as full grey-scale images. The cartoon algorithm comprises two components. One component draws lines at the locations of intensity changes corresponding to luminance valleys and edges (the ‘valledge’ detector). The other component applies a ‘threshold’ to the original intensity distribution, and replaces any area darker than threshold with black. Thus the full cartoon contains both ‘line’ and ‘mass’. Neither the valledges nor the threshold components alone were as well identified as full cartoons containing both components. The results suggest that the addition of the threshold component adds significantly to the identifiability of line drawings of faces.  相似文献   
206.
The importance that in-house software plays today in many organizations is without question. Perspectives of efficiencies, effectiveness, competitive advantage, and so on are but three areas where such applications exist. Many organizations have adopted measures to protect such software as a specific type of intellectual property. In the 1990s quite often the form of protection taken is software patents. The understanding and enthusiasm about software patents that is exhibited by organizations is not often shared by information systems researchers, however. For the most part, IS researchers dismiss software patents as an appropriate protective measure. This paper presents some background on patents and their applicability to software. Some US and international perspectives are also discussed to provide the reader with a somewhat broader perspective. We then discuss several IS research endeavors that either dismiss patents, or treat them incorrectly. We conclude with a research agenda for IS researchers. the Department of Computer Information Systems & Quantitative Analysis, University of Arkansas. She has conducted extensive research in the area of the law and information technology. Her published research has appeared in MIS Quarterly, Journal of Management Information Systems, and Knowledge and Policy. His research interests include examination of the strategic aspects of information systems and the relationship between the law and information technology. His research has been published in Information Systems Research, MIS Quarterly, and the Journal of Management Information Systems. Her current research is focused on interogranizational systems and the human relationships that exist in parallel to these systems.  相似文献   
207.
Repetition priming is defined as a gain in item recognition after previous exposure. Repetition priming of face recognition has been shown to last for several months, despite contamination by everyday exposure to both experimental and control faces in the interval. Here we show that gains in face recognition in the laboratory are found from faces initially seen in a rather different context— on subject recruitment posters, even when the advertisements make no specific mention of experiments involving face recognition. The priming was greatest when identical pictures were shown in the posters and in the test phase, although different views of faces did give significant priming in one study. Follow-up studies revealed poor explicit memory for the faces shown on the posters. The results of these experiments are used to develop a model in which repetition priming reflects the process of updating representations of familiar faces.  相似文献   
208.
This report describes an experiment that emphasizes: (a) the influence of organizing factors in remembering and comprehending and (b) the development of those skills that are related to the ability to organize. The analysis of the data was based on a theory of comprehension that emphasized a pair of interrelated processes, one providing for the construction of a schema or plan and the other for the semantic integration of items into the evolving plan. As predicted, adults perform more accurately with the paragraphs vs. the scrambled paragraphs and with the word lists as compared to the scrambled word lists. Accuracy with unrelated words is generally greater than with related words, a finding that is consistent with a reconstructive theory of remembering. The pattern of results for the 5th grade Ss is quite different: they perform more accurately with the scrambled paragraphs than with the paragraphs and somewhat more accurately with scrambled word lists rather than with word lists. These results were interpreted as evidence for a problem of control for the 5th grade Ss. We have assumed that the ability to process certain forms of information depends upon the ability to select and maintain an appropriate focus of attention. The results for these younger Ss suggest that their ability to file information into a schema as a filing system is compromised by the need to change or modify the filing system.  相似文献   
209.
Typically, a generalized discrimination for two linguistic forms (e.g., “behind the (noun)” and “in front of the (noun)”) has been developed in a sequence of three treatment conditions, with generative usage developed for each form consecutively in the first two conditions and a generalized discrimination developed for those forms in the third condition. Moreover, generalized discriminations have typically been measured by a set of unreinforced probes, rather than by first-trial performances across a series of new tasks, as in some studies that have taught generative usage of a single form of language. In this study, successive sets of instructions were presented to two children. Each set contained four tasks, the four possible combinations of two new nouns with the linguistic forms “Put the (noun) behind the (noun)” and “Put the (noun) in front of the (noun)”. For each set, receptive usage of nouns was taught, and then the four instructions were presented, once each, to test for generative usage of the prepositional forms. First-trial performances were never prompted. After a baseline of five sets of tasks, correct first-trial performances earned praise and tokens. Also, in each set with three or fewer such performances, the specific receptive discriminations were taught to a criterion before presentation of the next set. Successive sets were presented until all first-trial performances were correct in five consecutive sets, whereupon this generalized discrimination was reversed and subsequently reinstated. Similar procedures were then used to teach the same children a generalized productive-discrimination for the forms “behind the (noun)” and “in front of the (noun)”. This study demonstrated the development of generalized receptive and productive behind-front discriminations without the prior development of generative usage in each linguistic form and with measurement of the generalized discrimination across first-trial performances. The method may offer a less time-consuming procedure for the development and measurement of generalized discriminations in receptive and productive language.  相似文献   
210.
Memory for a standard tone in comparison to a subsequent test tone was examined in three experiments with three intervening tones between the standard and test tones. In each trial, the intervening tones were presented from one of seven frequency range and distance from the standard tone conditions. Experiment 1 tone patterns were played at four different presentation rates, and the subjects judged whether the test was higher or lower than the standard. Memory interference effects caused by the different intervening tone conditions could be accounted for by a directional shift in the standard tone memory toward the intervening tones and by a general decrease in the standard tone memory strength with more distant intervening tones. Interference effects were smaller for the rapid presentation rates because the intervening tones formed separate "perceptual streams." Two additional experiments presented the tone patterns in a task requiring the subjects to match a continuously variable tone to their memory of the standard (Experiment 2) and a task requiring them to judge whether the standard and test tones were the "same" or "different" (Experiment 3). These experiments showed large differences in interference effects as a function of the required judgment and the subjects' musical experience.  相似文献   
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