全文获取类型
收费全文 | 1413篇 |
免费 | 37篇 |
国内免费 | 39篇 |
出版年
2023年 | 16篇 |
2022年 | 45篇 |
2021年 | 42篇 |
2020年 | 58篇 |
2019年 | 58篇 |
2018年 | 119篇 |
2017年 | 92篇 |
2016年 | 101篇 |
2015年 | 49篇 |
2014年 | 47篇 |
2013年 | 156篇 |
2012年 | 62篇 |
2011年 | 51篇 |
2010年 | 45篇 |
2009年 | 62篇 |
2008年 | 70篇 |
2007年 | 54篇 |
2006年 | 52篇 |
2005年 | 43篇 |
2004年 | 18篇 |
2003年 | 14篇 |
2002年 | 13篇 |
2001年 | 10篇 |
2000年 | 17篇 |
1999年 | 9篇 |
1998年 | 10篇 |
1997年 | 12篇 |
1996年 | 4篇 |
1995年 | 12篇 |
1994年 | 5篇 |
1993年 | 12篇 |
1992年 | 7篇 |
1991年 | 4篇 |
1990年 | 7篇 |
1989年 | 6篇 |
1988年 | 7篇 |
1987年 | 8篇 |
1986年 | 7篇 |
1985年 | 7篇 |
1983年 | 5篇 |
1982年 | 13篇 |
1981年 | 9篇 |
1980年 | 9篇 |
1979年 | 7篇 |
1977年 | 5篇 |
1974年 | 4篇 |
1973年 | 4篇 |
1972年 | 3篇 |
1971年 | 3篇 |
1970年 | 4篇 |
排序方式: 共有1489条查询结果,搜索用时 31 毫秒
971.
Taste intensity functions were constructed for the salt taste, using variations of the method of direct magnitude estimation, to study the effects of adaptation to residuals from prior tastings. The prediction that mouthrinsing would reduce residuals, lower the level of adaptation, and thus yield lower exponents was confirmed. The effect of the residuals tended to be reduced, tiowever, when the power functions were adjusted for such threshold changes. Power function deviations from linearity were also discussed. The literature on intensity scaling for the salt taste was examined and seen to support these findings. It was concluded that the interstimulus procedure, by altering residual stimulus levels, played a major role in determining salt taste intensity functions. 相似文献
972.
NaCl detection and recognition thresholds were measured with and without a prior artificial raising of the level of adaptation by a molar salt mouthrinse. In both cases, it was found that an interstimulus procedure involving water mouthrinses yielded lower thresholds than a procedure with no rinses. These results were seen to be predicted from adaptation level changes. The literature was seen to confirm these results, while difficulties in threshold measurement were discussed. 相似文献
973.
J. G. O’Gorman 《Integrative psychological & behavioral science》1970,5(1):27-35
Sokolov’s 1963 report of return of the orienting reaction (OR) to repeated stimulus presentations following habituation was examined in 18 S’s using the galvanic skin response (GSR) component of the OR and an auditory stimulus of 60 db intensity and 1000 cps. Both group and individual S data analysis indicated a return of the OR which habituated quickly. The number of stimulus presentations to the OR return point showed an inverse relationship to rate of initial OR habituation for individual S’s. 相似文献
974.
通过综合分析风险决策任务内部表征的性质、特点、类型、形成规则及其重要的相关研究,认为风险决策的关键是正确合理的内部表征;决策者关于风险决策任务的内部表征、自我表征、情境表征与对手表征共同构成的决策表征系统及其有关的知识结构是决策空间的核心部分,应当成为风险决策研究的重要课题。 相似文献
975.
Dušan I. Bjelic 《Human Studies》1996,19(4):409-432
The aim of this paper is to give a self-reflective account of the building of Galileo's pendulum in order to discover what were the practical contingencies of building and using the pendulum for demonstrating the law of isochronism. In doing this, the unique Lebenswelt structures of Galilean physics are explicated through the ethnomethodological concepts developed by Harold Garfinkel. The presupposition is that the practical logic of Galilean physics is embedded in the instruments themselves. In building the pendulum and recovering its original use, Galilean physics becomes for ethnomethodologists a first-hand practical discovery. This is not a reconstruction of the mind of the historical Galileo but, rather, an explication of Galileo's practical perspective on the instrument as an intersubjective and interchangeable standpoint available for ethnomethodological analysis. This enables us to study historical facts from the standpoint of the practical logic of the original practice with a pedagogical eye for the instructive reproducibility of science.I would like to thank Mike Lynch, Eric Livingston, Jim MacLachlan, and Shelley Schweizer-Bjelic for their comments 相似文献
976.
977.
Generating an inducing figure by photoflash led to underestimation of the size of a luminous outline test circle in a nonluminous surround. As the afterimage of the inducing circle decayed, judged size of the test circle attained true size. The more intense inducing flash produced a longer lasting perceptible afterimage but no alteration in amount of test-circle underestimation as a function of time. The type of inducing configuration (outer concentric circle, nonconcentric circles, arcs) proved to have no differential effect. In the absence of an inducing figure, subjects make veridical judgments. 相似文献
978.
A low-cost microprocessor-controlled light-emitting diode (LED) dark adaptometer is described. The apparent intensities of red and green stimuli are controlled by changing the duty cycles of LED display elements which are operated at constant pulse repetition rates. The psychophysical method of limits is used to obtain threshold data. Stimulus parameters and test procedures are under software control. The design utilizes programmable integrated circuitry that may be used with a variety of microprocessors. 相似文献
979.
Lawrence E. Marks John P. Girvin Michael D. O’Keefe Peter Ning Donald O. Quest John L. Antunes Wm. H. Dobelle 《Attention, perception & psychophysics》1982,32(6):537-541
Temporal order thresholds were measured for brief electrical stimuli presented to the forehead and to the abdomen. Temporal acuity is better (thresholds smaller) on the forehead, sensitivity increasing somewhat (thresholds decreasing) as the physical separation between the electrodes increases. Even in that subject, of four, who had the lowest thresholds, however, the value rarely fell below 100 msec. Temporal order thresholds also depend on the orientation, being far smaller when the electrodes are separated horizontally than when separated vertically on both body sites. 相似文献
980.
Eriksen, O’Hara, and Eriksen (1982) have proposed that the latency advantage ofsame overdifferent judgments when the match is based upon physical identity is due to differential amounts of response competition between the responses by which the judgment ofsame ordifferent is signified. Responses of “different” are slowed by a high level of priming in the competing response signifyingsame. In the present experiment, the response competition model is extended to nominal matches and in particular to what Proctor 1198D has termed the “name-physieal disparity”—a pair of letters are more rapidly judged to have the same name if they are the same ease (e.g., a a) than if they are in different eases (e.g., A a). While response competition effects were found to occur in nominal matches of this kind, the name-physieal disparity was greater than could be attributed solely to response competition. Evidence was obtained that part of the name-physieal disparity could be attributed to the subject’s having two chances to make a-nominal raatch when the letter pair was identical both physically and in name. The match could be made either on the basis of the physical or the name code. It was assumed that name and physical codes were processed at least partially independently. 相似文献