全文获取类型
收费全文 | 1833篇 |
免费 | 90篇 |
国内免费 | 1篇 |
出版年
2023年 | 16篇 |
2021年 | 14篇 |
2020年 | 45篇 |
2019年 | 37篇 |
2018年 | 45篇 |
2017年 | 58篇 |
2016年 | 51篇 |
2015年 | 35篇 |
2014年 | 37篇 |
2013年 | 209篇 |
2012年 | 69篇 |
2011年 | 81篇 |
2010年 | 41篇 |
2009年 | 48篇 |
2008年 | 57篇 |
2007年 | 71篇 |
2006年 | 49篇 |
2005年 | 49篇 |
2004年 | 46篇 |
2003年 | 45篇 |
2002年 | 41篇 |
2001年 | 39篇 |
2000年 | 27篇 |
1999年 | 21篇 |
1998年 | 32篇 |
1997年 | 18篇 |
1996年 | 26篇 |
1993年 | 18篇 |
1992年 | 26篇 |
1991年 | 29篇 |
1990年 | 15篇 |
1989年 | 15篇 |
1988年 | 20篇 |
1987年 | 20篇 |
1986年 | 19篇 |
1985年 | 30篇 |
1984年 | 15篇 |
1983年 | 13篇 |
1982年 | 15篇 |
1981年 | 23篇 |
1980年 | 18篇 |
1979年 | 20篇 |
1978年 | 23篇 |
1977年 | 20篇 |
1976年 | 23篇 |
1975年 | 17篇 |
1974年 | 20篇 |
1973年 | 23篇 |
1971年 | 23篇 |
1966年 | 20篇 |
排序方式: 共有1924条查询结果,搜索用时 15 毫秒
1.
John M. Pearce Helen Kaye Louis Collins 《The Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology》1985,37(4):379-396
Three experiments, each using a single group of pigeons, are reported. In Experiment 1 subjects were initially trained with two stimuli, one of which was always followed by food, the other being reinforced according to a 50% partial reinforcement schedule. Subsequently a serial procedure was adopted in which an additional stimulus, C, was consistently followed by the partially reinforced CS. A second additional stimulus, A, was followed on half of its occurrences by the continuously reinforced CS, its remaining presentations being followed by nothing. The rate of autoshaped keypecking was substantially greater during A than during C. In the remaining experiments subjects received first-order conditioning with a single stimulus that was either partially (Experiment 2) or continuously (Experiment 3) reinforced. The stimuli A and C were then again introduced for serial autoshaping. Stimulus A was occasionally paired with the CS and occasionally followed by nothing, whereas stimulus C was always followed by the CS. As in Experiment 1, the rate of responding during A was greater than during C. It is proposed that one influence on the rate of autoshaped keypecking during a CS is the accuracy with which the immediate consequences of that CS are predicted. 相似文献
2.
3.
4.
5.
6.
D L Fisher S A Duffy C Young A Pollatsek 《Journal of experimental psychology. Human perception and performance》1988,14(2):253-266
Effects of load (i.e., the number of stimuli in the display) have been observed in multiple-frame studies using a consistent mapping of stimuli to responses (e.g., Fisher, 1982, 1984). In a series of four experiments, it is shown that these effects are not the consequence of differences across the high- and low-load conditions in either decision noise or peripheral masking. Additionally, it is shown that of two modes of limited capacity (a limited-channel and divided-capacity model) considered as possible explanations of load effects in tasks where subjects are required to locate a target, only one--the limited-channel model--is consistent with the results from all three location tasks. Finally, it is argued that the limited-channel model predicts not only the behavior observed in the four consistent-mapping experiments reported in this article but also the behavior observed in several related consistent-mapping tasks (Kleiss & Lane, 1986; Shiffrin & Gardner, 1972). 相似文献
7.
8.
There appears to be a strong relationship between mass media portrayals of violence and real-life violence itself. This article
reviews the available literature on the effects of media treatment of sports violence; analyzes the theoretical explanations
for this treatment; and makes proposals on how the problems of both sports violence and its media coverage may be remedied,
with a particular focus on amateur hockey in Canada. 相似文献
9.
10.
Seventh-grade students and teachers from twenty-three middle and junior high schools were surveyed to determine the association between teacher attitudes, behavioral intentions, and smoking behavior and the prevalence of student smoking. Teacher attitudes toward smoking policies were found to be strongly related to the current smoking behavior of the teacher but not consistently related to student smoking. In addition, teacher likelihood of intervening showed a modest association with teacher smoking status, with current smokers generally indicating being the least likely to intervene for student possession or use of cigarettes. Teacher intentions to intervene were strongly associated with the prevalence of smoking among boys but not girls. 相似文献