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161.
Brédart S Delchambre M Laureys S 《Quarterly journal of experimental psychology (2006)》2006,59(1):46-52
One's own face possesses two properties that make it prone to grab attention: It is a face, and, in addition, it is a self-referential stimulus. The question of whether the self-face is actually an especially attention-grabbing stimulus was addressed by using a face-name interference paradigm. We investigated whether interference from a flanking self-face on the processing of a target classmate's name was stronger than interference from a classmate's flanking face on the processing of one's own name as the target. In a control condition a third familiar face served as the flanker for both decisions from the participant's own name and from the classmate's name. The presentation of the self-face as a flanker produced significantly more interference on the identification of a classmate's name than the presentation of that classmate's face did on the identification of one's own name. This result was due to the interfering power of the self-face and not to a particular resistance of one's name to interfering facial stimuli. We argue that the emotional value or the high familiarity of one's own face may explain its attention-grabbing property. 相似文献
162.
Classical automated theorem proving of today is based on ingenious search techniques to find a proof for a given theorem in very large search spaces—often in the range of several billion clauses. But in spite of many successful attempts to prove even open mathematical problems automatically, their use in everyday mathematical practice is still limited.The shift from search based methods to more abstract planning techniques however opened up a paradigm for mathematical reasoning on a computer and several systems of that kind now employ a mix of interactive, search based as well as proof planning techniques.The Ωmega system is at the core of several related and well-integrated research projects of the Ωmega research group, whose aim is to develop system support for a working mathematician as well as a software engineer when employing formal methods for quality assurance. In particular, Ωmega supports proof development at a human-oriented abstract level of proof granularity. It is a modular system with a central proof data structure and several supplementary subsystems including automated deduction and computer algebra systems. Ωmega has many characteristics in common with systems like NuPrL, CoQ, Hol, Pvs, and Isabelle. However, it differs from these systems with respect to its focus on proof planning and in that respect it is more similar to the proof planning systems Clam and λClam at Edinburgh. 相似文献
163.
The authors analyzed a neglected phenomenon: self-conversion. Rather than concentrating on the influence exerted by a confederate on a naive participant, the authors studied how the confederate is himself or herself influenced by the position that he or she defends at the request of the experimenter. This experiment is particularly revealing with respect to a fundamental aspect of the psychology of the proselytizing of minority groups: In the process of convincing others, one also convinces oneself. Exerting influence on others thus leads to self-conversion, which allows the group to reinforce its beliefs and to stand up to conformity pressures. 相似文献
164.
Daselaar SM Veltman DJ Rombouts SA Raaijmakers JG Jonker C 《Neurobiology of learning and memory》2005,83(3):251-262
In this event-related fMRI study, brain activity patterns were compared in extensive groups of young (N=25) and older (N=38) adults, while they were performing a word stem completion priming task. Based on behavioral findings, we tested the hypothesis that aging affects only the lexical/semantic, but not the perceptual component of word stem priming. To this end, we distinguished between priming-related activity reductions in posterior regions involved in visual processing, and regions associated with lexical/semantic retrieval processes, i.e., left lateral temporal and left prefrontal regions. Both groups revealed significant priming-related response time reductions. However, in accordance with earlier findings, a larger priming effect was found in the group of young participants. In line with previous imaging studies, the groups showed common priming-related activity reductions in the anterior cingulate, and the left inferior prefrontal cortex extending into the anterior portion of the left superior temporal gyrus, and at lower thresholds also in the right occipital lobe. However, when directly comparing the groups, greater priming-related reductions were found for the young group in the left anterior superior temporal gyrus and the right posterior occipital lobe. These findings suggest that, converse to current psychological views, aging affects both perceptual and lexical/semantic components of repetition priming. 相似文献
165.
Robin Wollast Adrian Lüders Armelle Nugier Kamilla Khamzina Roxane de la Sablonnière Serge Guimond 《European journal of social psychology》2023,53(1):167-182
Decades of research have shown that social dominance orientation (SDO) is one of the most important predictors of anti-immigrant attitudes. However, the mechanisms through which SDO can explain prejudice have been studied insufficiently. Using rich and diverse samples from France and from the province of Québec in Canada, the present research provides a cross-national (N = 1,852) and prospective (N = 534) analysis of a theoretical model in which the dimensions of SDO are indirectly predicting anti-immigrant prejudice via the intergroup ideologies of assimilation, multiculturalism, colour blindness and interculturalism. Results showed that interculturalism, a hierarchy-attenuating ideology was found to be a robust mechanism to explain the subtle effects of SDO-E on anti-immigrant prejudice whereas assimilation, a hierarchy-enhancing ideology was playing a more important role to explain direct and blatant effects of SDO-D on prejudice. The two most studied diversity approaches, multiculturalism and colour blindness, were largely redundant once interculturalism was considered. This pattern occurred in both France and Québec hence, favouring the context-independent pathway. 相似文献
166.
Increase in Syntaxin 1B mRNA in Hippocampal and Cortical Circuits During Spatial Learning Reflects a Mechanism of Trans-synaptic Plasticity Involved in Establishing a Memory Trace 总被引:2,自引:0,他引:2 下载免费PDF全文
Sabrina Davis Jennifer Rodger Aline Stphan Andrew Hicks Jacques Mallet Serge Laroche 《Learning & memory (Cold Spring Harbor, N.Y.)》1998,5(4):375-390
It has long been proposed that the cellular and molecular mechanisms responsible for LTP may well involve the mechanisms that lead to the type of synaptic modification that occurs during learning. However, it is also known that a single memory trace is encoded in spatially distributed networks; implying that alterations of synaptic strength occur at multiple sites along circuits of connected cells. Recent evidence suggests that regulation of the gene encoding syntaxin 1B, a presynaptic protein involved in exocytosis, plays an important role in the mediation of trans-synaptic LTP, a candidate mechanism for the propagation of plasticity in neural circuits during learning. Using in situ hybridization to measure the mRNA levels at different time points after learning a spatial working or reference memory task, we show that expression of the gene encoding this protein in the hippocampal and corticoprefrontal circuits increases linearly with performance at a critical window of learning when rats are reaching between 75% and 100% of their maximal performance. No changes were observed during the early phases of learning or when rats where overtrained. The correlational analysis indicates that coordinated increases in syntaxin 1B expression occurs in hippocampal circuits during working memory and in more widespread hippocampocortical circuits during reference memory. These results suggest that a form of trans-synaptic plasticity mediated in part by regulation of the expression of syntaxin 1B may play an active role in configuring specific spatially distributed circuits during the laying down of memories. 相似文献
167.
The assertion by Baer and Lambert (1990) that social science training does not promote radicalism, is tested in two studies.
The first, using a sample of politically active students from Montréal (N=68) and measures of radical ideology and political
convictions, shows social science students are over-represented among politically active students, and more likely to espouse
radical ideology and label themselves members of groups aiming to restructure society, than students from other fields. The
second study compares first and third-year social science students from Toronto (N=99) on measures of radical ideology, attitudes
toward groups favouring change or the status quo, and causal attributions regarding poverty and unemployment. Results suggest
social science training fosters positive evaluations of groups seeking change, espousal of radical ideology, tendency to fault
the system for social problems, decrease in tendency to fault individuals, and development of a coherent ideological framework.
Implications for academic socialization theories and methodological issues are discussed.
Université Blaise Pascal
This research was supported in part by grants from the Social Science and Humanities Research Council and from the Academic
Research Program of the Department of National Defence of Canada awarded to the first author. The opinions expressed herein
are those of the authors and do not necessarily reflect the views of the institutions with which they are affiliated. The
authors would like to thank Dr. Stuart Lawson, at the Psychology Department at Queen's University, Kingston, for the use of
his program comparing correlation matrices. We would also like to acknowledge the helpful comments of Editor Bruce J. Biddle. 相似文献
168.
Serge Nicolas 《Psychological research》1995,58(3):218-224
In two experiments we examined the picture-superiority effect in the framework of the transfer-appropriate processing approach recently advocated by Roediger, Weldon, and Challis (1989). For the first time conceptual implicit-memory task is used, i.e., category association. In Experiment 1, subjects study a mixed list of pictures and words and then receive either a category-association test or a category-cued recall test, followed by a recognition test. The results show that performance on category-cued recall, recognition, and category-association tests are better when the material is studied in picture format. In Experiment 2, we show that producing a sentence with the material studied (picture or word) eliminates the picture-superiority effect in the implicit test, but does not eliminate picture superiority in the category-cued recall test. These results suggest that conceptually driven processing plays a critical role in category association and explicit tests of memory. The results are discussed in the framework of the transfer-appropriate processing approach to memory. 相似文献
169.
H J Brand 《Perceptual and motor skills》1989,69(1):273-274
The Marianne Frostig Developmental Test of Visual Perception was administered to 31 preschool children (19 boys and 12 girls) whose mean age was 68 mo. An item analysis showed that 52% of the test items satisfied the requirements with regard to degree of difficulty and discrimination. KR-20 reliability coefficients varied between 0.31 and 0.58 for the different subtests, with r=0.72 for the full scale. 相似文献
170.