全文获取类型
收费全文 | 4602篇 |
免费 | 283篇 |
国内免费 | 5篇 |
出版年
2023年 | 53篇 |
2022年 | 66篇 |
2021年 | 91篇 |
2020年 | 124篇 |
2019年 | 164篇 |
2018年 | 189篇 |
2017年 | 225篇 |
2016年 | 243篇 |
2015年 | 151篇 |
2014年 | 169篇 |
2013年 | 554篇 |
2012年 | 260篇 |
2011年 | 242篇 |
2010年 | 188篇 |
2009年 | 144篇 |
2008年 | 222篇 |
2007年 | 210篇 |
2006年 | 208篇 |
2005年 | 160篇 |
2004年 | 143篇 |
2003年 | 142篇 |
2002年 | 110篇 |
2001年 | 72篇 |
2000年 | 52篇 |
1999年 | 56篇 |
1998年 | 32篇 |
1997年 | 29篇 |
1996年 | 45篇 |
1995年 | 34篇 |
1994年 | 29篇 |
1993年 | 28篇 |
1992年 | 40篇 |
1991年 | 26篇 |
1990年 | 28篇 |
1989年 | 17篇 |
1988年 | 28篇 |
1987年 | 23篇 |
1986年 | 27篇 |
1985年 | 17篇 |
1984年 | 28篇 |
1983年 | 11篇 |
1982年 | 11篇 |
1981年 | 17篇 |
1980年 | 15篇 |
1979年 | 10篇 |
1978年 | 12篇 |
1975年 | 10篇 |
1972年 | 14篇 |
1969年 | 10篇 |
1968年 | 10篇 |
排序方式: 共有4890条查询结果,搜索用时 187 毫秒
171.
The processing of Prepositional compounds (typical Neo-latin noun--noun modifications where a head noun is modified by a prepositional phrase, e.g., mulino a vento, windmill) was preliminarily studied with a group of six agrammatic aphasic patients, and, in more detail, with a further agrammatic patient (MB). Omission was the most frequent error type in naming, whereas in the other tasks (repetition, reading, writing, and completion) errors were mostly substitutions of the target preposition. This happened even with fully lexicalized compound forms, i.e., those forms where the linking preposition is syntactically and semantically opaque. These findings are interpreted in terms of a dual-route theory of lexical access to morphologically complex words. 相似文献
172.
173.
Renier L Laloyaux C Collignon O Tranduy D Vanlierde A Bruyer R De Volder AG 《Perception》2005,34(7):857-867
We tested the effects of using a prosthesis for substitution of vision with audition (PSVA) on sensitivity to the Ponzo illusion. The effects of visual experience on the susceptibility to this illusion were also assessed. In one experiment, both early-blind and blindfolded sighted volunteers used the PSVA to explore several variants of the Ponzo illusion as well as control stimuli. No effects of the illusion were observed. The results indicate that subjects focused their attention on the two central horizontal bars of the stimuli, without processing the contextual cues that convey perspective in the Ponzo figure. In a second experiment, we required subjects to use the PSVA to consider the two converging oblique lines of the stimuli before comparing the length of the two horizontal bars. Here we were able to observe susceptibility to the Ponzo illusion in the sighted group, but to a lesser extent than in a sighted non-PSVA control group. No clear effect of the ilusion was obtained in early-blind subjects. These results suggest that, at least in sighted subjects, perception obtained with the PSVA shares perceptual processes with vision. Visual experience appears mandatory for a Ponzo illusion to occur with the PSVA. 相似文献
174.
175.
Truchan-Tataryn M 《The Journal of medical humanities》2005,26(2-3):159-172
William Faulkner's The Sound and the Fury has become a classic in literary history. Since its publication in 1929, it has sustained critical interest worldwide. Over time, analyses of this work have reflected shifting cultural perspectives of the inscribed human dynamics such as gender, race and sexuality. This paper contends that a similar critical development cannot be detected around the reception of the character of the "idiot," Benjy. Faulknerian scholarship, regardless of its place in time or trend, persists in conflating the dehumanized images of Benjy with the lived experience of disability, thus perpetuating oppressive disability prejudice and limiting the richness of the character's metaphoric potential. Acknowledging this critical lacuna, historicizing and theorizing Benjy's character from a disability perspective could lead to a deeper understanding of human experience. 相似文献
176.
Previous studies on human causal learning (De Houwer & Beckers, 2003; De Houwer, Beckers, & Glautier, 2002) showed that secondary task difficulty (performing an easy vs. a difficult secondary task during the main causal learning task) and ceiling information (outcome occurs with a maximal vs. submaximal intensity) had an influence on forward blocking (i.e., lower causal ratings for cue T when AT+ trials are preceded by A+ trials than when no A+ trials are presented). We extended these studies by also examining self-reports of participants about the reasons behind their causal ratings. Blocking was found only for participants who reported an appropriate blocking inference. Furthermore, secondary task difficulty and ceiling information influenced the number of participants who reported an appropriate blocking inference. These findings point to a major impact of inferential reasoning in human causal learning. 相似文献
177.
De Lillo C Spinozzi G Truppa V Naylor DM 《Journal of comparative psychology (Washington, D.C. : 1983)》2005,119(2):155-165
Results obtained with preschool children (Homo sapiens) were compared with results previously obtained from capuchin monkeys (Cebus apella) in matching-to-sample tasks featuring hierarchical visual stimuli. In Experiment 1, monkeys, in contrast with children, showed an advantage in matching the stimuli on the basis of their local features. These results were replicated in a 2nd experiment in which control trials enabled the authors to rule out that children used spurious cues to solve the matching task. In a 3rd experiment featuring conditions in which the density of the stimuli was manipulated, monkeys' accuracy in the processing of the global shape of the stimuli was negatively affected by the separation of the local elements, whereas children's performance was robust across testing conditions. Children's response latencies revealed a global precedence in the 2nd and 3rd experiments. These results show differences in the processing of hierarchical stimuli by humans and monkeys that emerge early during childhood. 相似文献
178.
This review identified 1275 studies examining cognitive deficits in people with schizophrenia, published between 1990 and
2003. Data from 113 studies (4365 patients and 3429 controls) were combined in a meta-analysis carried out on the five cognitive
domains of IQ, memory, language, executive function, and attention. Studies were excluded where they lacked a suitable control
group or failed to present complete information. In all five cognitive domains, analysis indicated a consistent trend for
patients to perform more poorly than healthy controls, with significant heterogeneity across studies. Sources of heterogeneity
were analyzed and a need to ensure more appropriate composition of patient and control groups and to adopt a more refined
and methodologically correct, hypothesis-driven approach was identified. 相似文献
179.
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
180.
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