全文获取类型
收费全文 | 499篇 |
免费 | 26篇 |
出版年
2024年 | 3篇 |
2023年 | 4篇 |
2021年 | 4篇 |
2020年 | 7篇 |
2019年 | 18篇 |
2018年 | 24篇 |
2017年 | 17篇 |
2016年 | 27篇 |
2015年 | 22篇 |
2014年 | 16篇 |
2013年 | 50篇 |
2012年 | 20篇 |
2011年 | 17篇 |
2010年 | 16篇 |
2009年 | 18篇 |
2008年 | 18篇 |
2007年 | 16篇 |
2006年 | 20篇 |
2005年 | 16篇 |
2004年 | 16篇 |
2003年 | 7篇 |
2002年 | 14篇 |
2001年 | 6篇 |
2000年 | 7篇 |
1999年 | 14篇 |
1998年 | 8篇 |
1997年 | 7篇 |
1996年 | 6篇 |
1995年 | 10篇 |
1994年 | 5篇 |
1993年 | 6篇 |
1992年 | 10篇 |
1991年 | 3篇 |
1990年 | 5篇 |
1989年 | 3篇 |
1988年 | 3篇 |
1987年 | 3篇 |
1986年 | 4篇 |
1984年 | 3篇 |
1981年 | 3篇 |
1979年 | 3篇 |
1978年 | 5篇 |
1975年 | 2篇 |
1974年 | 6篇 |
1973年 | 5篇 |
1971年 | 3篇 |
1970年 | 5篇 |
1968年 | 4篇 |
1967年 | 4篇 |
1966年 | 4篇 |
排序方式: 共有525条查询结果,搜索用时 125 毫秒
271.
The visual system represents object shapes in terms of intermediate-level parts. The minima rule proposes that the visual system uses negative minima of curvature to define boundaries between parts. We used visual search to test whether part structures consistent with the minima rule are computed preattentively--or at least, rapidly and early in visual processing. The results of Experiments 1 and 2 showed that whereas the search for a non-minima-segmented shape is fast and efficient among minima-segmented shapes, the reverse search is slow and inefficient. This asymmetry is expected if parsing at negative minima occurs obligatorily. The results of Experiments 3 and 4 showed that although both minima- and non-minima-segmented shapes pop out among unsegmented shapes, the search for minima-segmented shapes is significantly slower. Together, these results demonstrate that the visual system segments shapes into parts, using negative minima of curvature, and that it does so rapidly in early stages of visual processing. 相似文献
272.
Color-from-motion displays consist of a sparse array of dots which never move but change color according to various algorithms. Yet such displays can trigger human vision to construct apparent motion of a subjective surface which is uniformly colored and bounded by a subjective contour. We show that the perceptual strength of this construction depends on the density and regularity of dot placement. We studied three objective measures of density and regularity: nearest-neighbor distance, mean of maximal disks, and variance of maximal disks. We found that nearest-neighbor mechanisms alone are inadequate to account for the perceptual strength of the subjective surfaces and contours. Mechanisms sensitive to areal gaps provide a more adequate account. 相似文献
273.
Interest in and barriers to participation in multiple family groups among head and neck cancer survivors and their primary family caregivers 总被引:1,自引:0,他引:1
This study examined interest in and barriers to participation in a multiple family group intervention (MFG) for adult cancer survivors and their family caregivers. The intervention was developed to assist families in coping with the persistent challenges of cancer diagnosis, treatment, and rehabilitation. Eighty eligible families having a member diagnosed and treated for cancers of the head and neck region completed a baseline quality of life survey consisting of standardized psychosocial measures, and then all patients and their families were invited to participate in a day-long multiple family group program. However, despite extensive recruitment efforts and accommodations to address anticipated barriers for nonparticipation, only 15 of the 80 (19%) eligible families agreed to attend the MFG workshop. Post-MFG, participating families reported high levels of program satisfaction and usefulness. These findings are discussed in the context of increasing the use of family-focused interventions in cancer care settings. 相似文献
274.
Lancioni GE O'Reilly MF Singh NN Stasolla F Manfredi F Oliva D 《Perceptual and motor skills》2004,99(2):724-728
We adapted a grid into a microswitch for the hand movements of a girl with profound multiple disabilities who lay on her back. The grid, suspended above the girl's face, was equipped with two mercury devices, i.e., small sealed ampoules containing a mercury drop and ending with conductive leads. A lateral or forward movement of the grid would make the mercury drop of at least one device slide to the conductive leads and activate the device. During the intervention, activations of the devices, i.e., microswitch activations, produced the occurrence of favorite stimuli. Analysis showed that the girl increased the frequency of hand movements and microswitch activations during the intervention phases compared to the baseline phases (when the favorite stimuli were not available). The increase was retained at a 1-mo. postintervention check. 相似文献
275.
Adrian von Mühlenen Lauren Bellaera Amrendra Singh Narayanan Srinivasan 《Attention, perception & psychophysics》2018,80(5):1072-1082
Gable and Harmon-Jones (Psychological Science, 21(2), 211-215, 2010) reported that sadness broadens attention in a global-local letter task. This finding provided the key test for their motivational intensity account, which states that the level of spatial processing is not determined by emotional valence, but by motivational intensity. However, their finding is at odds with several other studies, showing no effect, or even a narrowing effect of sadness on attention. This paper reports two attempts to replicate the broadening effect of sadness on attention. Both experiments used a global-local letter task, but differed in terms of emotion induction: Experiment 1 used the same pictures as Gable and Harmon-Jones, taken from the IAPS dataset; Experiment 2 used a sad video underlaid with sad music. Results showed a sadness-specific global advantage in the error rates, but not in the reaction times. The same null results were also found in a South-Asian sample in both experiments, showing that effects on global/local processing were not influenced by a culturally related processing bias. 相似文献
276.
277.
Using a mixed method approach we conducted three studies to construct a multidimensional measure of happiness at work. In Study 1, a qualitative content analysis using Atlas.ti 7 offered support for the proposed, a priori deductive model which also discriminated between the construct of happiness at work and happiness in personal life. Further, a principal axis factoring of the responses consisting of 539 working people (Study 2) yielded four factors reflecting the equal role of organizational and human aspects of the workplace happiness, i.e. supportive work experiences, unsupportive work experiences, flow and intrinsic motivation and work repulsive feelings. In Study 3, a Confirmatory Factor Analysis testing the reflective versus formative structure of the proposed scale supported a four-factor reflective model over a series of 13 competing models. Moreover, the scale showed statistically significant convergent and discriminant validity. Possible applications of the scale in predicting happiness styles and enhancing the experience of happiness at work has been presented at the end. 相似文献
278.
279.
Stanley O. Gaines Jr. Katharina Lefringhausen Divine Charura Jayanthiny Kangatharan Jeshika Singh Nancy Tamimi 《Identity: An International Journal of Theory and Research》2016,16(2):73-86
This article reports the construction of a new survey—specifically, the Brunel Ethnic Behavior Inventory (BEBI)—designed to measure ethnic speech and ethnic action as separate, yet related, aspects of individuals’ ethnic behavior. Using Tajfel’s social identity theory as a conceptual frame of reference, this study sought an answer to the research question of how many factors actually are measured by the BEBI, and tested the hypothesis that a two-factor model (i.e., Ethnic Speech and Ethnic Action as two correlated factors) would provide significantly better goodness of fit to the correlational data than would a one-factor model (i.e., Ethnic Behavior as one undifferentiated factor). Across one pilot sample (n = 101) and two main samples (n = 120 for Sample 1, n = 148 for Sample 2), the study found that not only did the BEBI measure two factors at most (i.e., Ethnic Speech and Ethnic Action) but, consistent with the hypothesis, the two-factor model yielded better goodness of fit than did the one-factor model. Implications for the conceptualization and measurement of Verkuyten’s “ways of ethnicity” are discussed. 相似文献
280.