全文获取类型
收费全文 | 4085篇 |
免费 | 224篇 |
国内免费 | 3篇 |
出版年
2024年 | 9篇 |
2023年 | 60篇 |
2022年 | 63篇 |
2021年 | 99篇 |
2020年 | 133篇 |
2019年 | 146篇 |
2018年 | 211篇 |
2017年 | 219篇 |
2016年 | 178篇 |
2015年 | 116篇 |
2014年 | 135篇 |
2013年 | 514篇 |
2012年 | 315篇 |
2011年 | 319篇 |
2010年 | 201篇 |
2009年 | 100篇 |
2008年 | 273篇 |
2007年 | 205篇 |
2006年 | 215篇 |
2005年 | 126篇 |
2004年 | 107篇 |
2003年 | 79篇 |
2002年 | 73篇 |
2001年 | 34篇 |
2000年 | 55篇 |
1999年 | 34篇 |
1998年 | 20篇 |
1997年 | 20篇 |
1996年 | 14篇 |
1995年 | 12篇 |
1994年 | 11篇 |
1993年 | 12篇 |
1992年 | 15篇 |
1991年 | 16篇 |
1990年 | 25篇 |
1989年 | 16篇 |
1988年 | 11篇 |
1987年 | 13篇 |
1986年 | 9篇 |
1985年 | 11篇 |
1982年 | 5篇 |
1981年 | 11篇 |
1980年 | 5篇 |
1979年 | 5篇 |
1975年 | 4篇 |
1974年 | 5篇 |
1972年 | 5篇 |
1971年 | 6篇 |
1969年 | 4篇 |
1966年 | 4篇 |
排序方式: 共有4312条查询结果,搜索用时 15 毫秒
111.
Sheehan's shortened form of Betts' Questionnaire Upon Mental Imagery is one of the most widely used inventories for measuring imaging. Participants were 562 undergraduate students (414 women and 148 men), with a mean age of 20.2 yr. In a principal components analysis followed by varimax orthogonal rotation for the Spanish version, eight factors were identified, six of which coincide with those of the original English version. Internal consistency was .92 (Cronbach alpha). Scores on the Betts Questionnaire Upon Mental Imagery correlated -.34 with those on the Gordon Test of Visual Imagery Control, .58 with those on the Vividness of Visual Imagery Questionnaire, and .02 with the Verbalizer-Visualizer Questionnaire. 相似文献
112.
113.
114.
A classical definition of automaticity establishes that automatic processing occurs without attention or consciousness, and cannot be controlled. Previous studies have demonstrated that semantic priming can be reduced if attention is directed to a low-level of analysis. This finding suggests that semantic processing is not automatic since it can be controlled. In this paper, we present two experiments that demonstrate that semantic processing may occur in the absence of attention and consciousness. A negative semantic priming effect was found when a low-level prime-task was required and when a masked lexical decision prime-task was performed (Experiment 1). This paper also discusses the limitations of the inhibitory mechanism involved in negative semantic priming effect. 相似文献
115.
116.
This study has 2 objectives: (a) to explore typical paths of cognitive development associated with aging, terminal decline, and dementia and (b) to promote and illustrate an individual-oriented approach to the study of cognitive aging based on longitudinal panel data from a population-based sample (N = 500; age range-sub(T1)= 60-80, where T refers to time) tested at 3 occasions 5 years apart. Results document interindividual differences in multivariate patterns of change. Although cognitive changes generally covary, the present study indicates that subgroups of individuals develop along different paths characterized by selective changes in subsets of cognitive functions. Typical progression of dementia followed a developmental cascade from low declarative memory, via low functioning across all observed cognitive measures, to dementia diagnosis, and finally, death. 相似文献
117.
Eunjeong?KangEmail author Ana María?Brannan Craig Anne?Heflinger 《Journal of child and family studies》2005,14(1):43-56
The aim of this study was to examine differences in responses to the Caregiver Strain Questionnaire (CGSQ) between African American and White caregivers of children with emotional and behavioral challenges. Significant item- and scale-level differences were detected across groups with African Americans consistently reporting less strain. We examined whether these differences were more likely due to nonequivalent measurement than to real differences in the experience of caregiver strain. Confirmatory factor analysis showed that the model fit the data well for both racial groups, but there were some differences in structural components. Internal consistency was equivalent across the groups. In an examination of criterion validity, regression analyses showed that African American caregivers experienced a slower rate of increase in objective caregiver strain at a given increase in child internalizing problems. No other race differences were found in the regression analyses. In general, we conclude that the CGSQ can be useful for detecting caregiver strain and identifying family support needs for both White and African American caregivers. Differences across groups in reports of caregiver strain, however, call for more research on racial differences in the impact on the family of caring for a child with emotional and behavioral disorders. 相似文献
118.
Research that uses simple response time tasks and neuroimaging has emphasized that attentional preparation based on temporal
expectancy modulates processing at motor levels. A novel approach was taken to study whether the temporal orienting of attention
can also modulate perceptual processing. A temporal-cuing paradigm was used together with a rapid serial visual presentation
procedure, in order to maximize the processing demands of perceptual analysis. Signal detection theory was applied in order
to examine whether temporal orienting affects processes related to perceptual sensitivity or to response criterion (indexed
byďand beta measures, respectively). If temporal orienting implies perceptual preparation, we would expect to observe an increase
in perceptual sensitivity (ď) when a target appeared at expected, rather than unexpected, time intervals. Indeed, our behavioral results opened the possibility
that focusing attention on time intervals not only enhances motor processing, as has been shown by previous research, but
also might improve perceptual processing. 相似文献
119.
Much previous research has demonstrated that visual search is typically disrupted by the presence of a unique “singleton”
distractor in the search display. Here we show that attentional capture by an irrelevant color singleton during shape search
critically depends on availability of working memory to the search task: When working memory is loaded in a concurrent yet
unrelated verbal short-term memory task, capture increases. These findings converge with previous demonstrations that increasing
working memory load results in greater distractor interference in Stroop-like tasks (de Fockert, Rees, Frith, & Lavie, 2001;
Lavie, Hirst, de Fockert, & Viding, 2004), which support the hypothesis that working memory provides goal-directed control
of visual selective attention allowing to minimize interference by goal-irrelevant distractors. 相似文献
120.
Cammarota M Bevilaqua LR Rossato JI Ramirez M Medina JH Izquierdo I 《Neurobiology of learning and memory》2005,84(1):25-32
Both the acquisition and the extinction of memories leave short- and long-term mnemonic traces. Here, we show that in male Wistar rats, the short-term memory for a step-down inhibitory avoidance task (IA) is resistant to extinction, and that its expression does not influence retrieval or extinction of long-term memory. It has been known for some time that short- and long-term inhibitory avoidance memory involve separate and parallel processes. Here we show that, instead, short-term extinction of IA long-term memory is the first step towards its long-term extinction, and that this link requires functional NMDA receptors and protein synthesis in the CA1 region of the dorsal hippocampus at the time of the first CS-no US presentation. 相似文献