全文获取类型
收费全文 | 426篇 |
免费 | 13篇 |
出版年
2021年 | 6篇 |
2020年 | 3篇 |
2019年 | 7篇 |
2018年 | 12篇 |
2017年 | 15篇 |
2016年 | 13篇 |
2015年 | 13篇 |
2014年 | 6篇 |
2013年 | 56篇 |
2012年 | 12篇 |
2011年 | 21篇 |
2010年 | 7篇 |
2009年 | 11篇 |
2008年 | 19篇 |
2007年 | 16篇 |
2006年 | 13篇 |
2005年 | 14篇 |
2004年 | 7篇 |
2003年 | 10篇 |
2002年 | 15篇 |
2001年 | 13篇 |
2000年 | 19篇 |
1999年 | 9篇 |
1998年 | 6篇 |
1997年 | 7篇 |
1996年 | 6篇 |
1994年 | 2篇 |
1992年 | 8篇 |
1991年 | 8篇 |
1990年 | 4篇 |
1989年 | 12篇 |
1988年 | 6篇 |
1987年 | 4篇 |
1986年 | 5篇 |
1985年 | 6篇 |
1984年 | 4篇 |
1983年 | 4篇 |
1982年 | 2篇 |
1980年 | 3篇 |
1977年 | 2篇 |
1976年 | 2篇 |
1975年 | 3篇 |
1974年 | 2篇 |
1973年 | 2篇 |
1972年 | 3篇 |
1969年 | 3篇 |
1968年 | 2篇 |
1967年 | 2篇 |
1966年 | 2篇 |
1965年 | 2篇 |
排序方式: 共有439条查询结果,搜索用时 62 毫秒
191.
192.
The Influence of Traditional Male Initiation (Lebollo) on School Discipline: Educators’ Perspectives
This study explores the influence of traditional male initiation on school discipline. Eight educators teaching in township schools in Bloemfontein, South Africa, were purposefully selected to take part in a focus-group interview. The results from a content analysis indicate that initiates may exacerbate disciplinary problems at schools and that certain types of misbehavior may be attributed to initiation schools. The study found that initiation schools might perpetuate gender inequalities, patriarchy, gangsterism, and criminality. Recommendations on how to deal with disciplinary problems arising from initiates’ behavior are made. 相似文献
193.
194.
195.
196.
Vision in the prairie dog: spectral sensitivity and color vision 总被引:1,自引:0,他引:1
197.
We investigated changes in bias (preference for one response alternative) in signal detection when relative reinforcer frequency for correct responses varied across sessions. In Experiment 1, 4 rats responded in a two-stimulus, two-response identification procedure employing temporal stimuli (short vs. long houselight presentations). Relative reinforcer frequency varied according to a 31-step pseudorandom binary sequence and stimulus duration difference varied over two values across conditions. In Experiment 2, 3 rats responded in a five-stimulus, two-response classification procedure employing temporal stimuli. Relative reinforcer frequency was varied according to a 36-step pseudorandom ternary sequence. Results of both experiments were analyzed according to a behavioral model of detection. The model was extended to incorporate the effects of current and previous session reinforcer frequency ratios on current-session performance. Similar to findings with concurrent schedules, effects on bias of relative reinforcer frequency were highest for the current session. However, carryover from reinforcer ratios of previous sessions was evident. Generally, the results indicate that bias can come under control of frequent changes in relative reinforcer frequency in both identification and classification procedures. 相似文献
198.
MacLean EL Matthews LJ Hare BA Nunn CL Anderson RC Aureli F Brannon EM Call J Drea CM Emery NJ Haun DB Herrmann E Jacobs LF Platt ML Rosati AG Sandel AA Schroepfer KK Seed AM Tan J van Schaik CP Wobber V 《Animal cognition》2012,15(2):223-238
Now more than ever animal studies have the potential to test hypotheses regarding how cognition evolves. Comparative psychologists have developed new techniques to probe the cognitive mechanisms underlying animal behavior, and they have become increasingly skillful at adapting methodologies to test multiple species. Meanwhile, evolutionary biologists have generated quantitative approaches to investigate the phylogenetic distribution and function of phenotypic traits, including cognition. In particular, phylogenetic methods can quantitatively (1) test whether specific cognitive abilities are correlated with life history (e.g., lifespan), morphology (e.g., brain size), or socio-ecological variables (e.g., social system), (2) measure how strongly phylogenetic relatedness predicts the distribution of cognitive skills across species, and (3) estimate the ancestral state of a given cognitive trait using measures of cognitive performance from extant species. Phylogenetic methods can also be used to guide the selection of species comparisons that offer the strongest tests of a priori predictions of cognitive evolutionary hypotheses (i.e., phylogenetic targeting). Here, we explain how an integration of comparative psychology and evolutionary biology will answer a host of questions regarding the phylogenetic distribution and history of cognitive traits, as well as the evolutionary processes that drove their evolution. 相似文献
199.
The development of theories and computational models of reading requires an understanding of processing constraints, in particular
of timelines related to word recognition and oculomotor control. Timelines of word recognition are usually determined with
event-related potentials (ERPs) recorded under conditions of serial visual presentation (SVP) of words; timelines of oculomotor
control are derived from parameters of eye movements (EMs) during natural reading. We describe two strategies to integrate
these approaches. One is to collect ERPs and EMs in separate SVP and natural reading experiments for the same experimental
material (but different subjects). The other strategy is to co-register EMs and ERPs during natural reading from the same
subjects. Both strategies yield data that allow us to determine how lexical properties influence ERPs (e.g., the N400 component)
and EMs (e.g., fixation durations) across neighboring words. We review our recent research on the effects of frequency and
predictability of words on both EM and ERP measures with reference to current models of eye-movement control during reading.
Results are in support of the proposition that lexical access is distributed across several fixations and across brain-electric
potentials measured on neighboring words. 相似文献
200.