全文获取类型
收费全文 | 741篇 |
免费 | 124篇 |
国内免费 | 163篇 |
出版年
2023年 | 18篇 |
2022年 | 23篇 |
2021年 | 22篇 |
2020年 | 41篇 |
2019年 | 19篇 |
2018年 | 12篇 |
2017年 | 31篇 |
2016年 | 38篇 |
2015年 | 35篇 |
2014年 | 49篇 |
2013年 | 88篇 |
2012年 | 49篇 |
2011年 | 53篇 |
2010年 | 51篇 |
2009年 | 52篇 |
2008年 | 40篇 |
2007年 | 40篇 |
2006年 | 58篇 |
2005年 | 30篇 |
2004年 | 15篇 |
2003年 | 14篇 |
2002年 | 11篇 |
2001年 | 10篇 |
2000年 | 16篇 |
1999年 | 7篇 |
1998年 | 11篇 |
1997年 | 4篇 |
1996年 | 10篇 |
1995年 | 12篇 |
1994年 | 9篇 |
1993年 | 7篇 |
1992年 | 7篇 |
1991年 | 9篇 |
1990年 | 6篇 |
1989年 | 8篇 |
1988年 | 5篇 |
1987年 | 6篇 |
1986年 | 8篇 |
1985年 | 13篇 |
1984年 | 13篇 |
1982年 | 4篇 |
1979年 | 5篇 |
1978年 | 5篇 |
1977年 | 9篇 |
1975年 | 4篇 |
1972年 | 6篇 |
1971年 | 5篇 |
1968年 | 4篇 |
1965年 | 3篇 |
1962年 | 4篇 |
排序方式: 共有1028条查询结果,搜索用时 15 毫秒
91.
92.
Claude H. Miller Bobi Ivanov Jeanetta Sims Josh Compton Kylie J. Harrison Kimberly A. Parker James L. Parker Joshua M. Averbeck 《人类交流研究》2013,39(1):127-155
The efficacy of inoculation theory has been confirmed by decades of empirical research, yet optimizing its effectiveness remains a vibrant line of investigation. The present research turns to psychological reactance theory for a means of enhancing the core mechanisms of inoculation—threat and refutational preemption. Findings from a multisite study indicate reactance enhances key resistance outcomes, including: threat, anger at attack message source, negative cognitions, negative affect, anticipated threat to freedom, anticipated attack message source derogation, perceived threat to freedom, perceived attack message source derogation, and counterarguing. Most importantly, reactance‐enhanced inoculations result in lesser attitude change—the ultimate measure of resistance. 相似文献
93.
Robert J. Storella Harrison W. Wood Kenneth M. Mills Jørgen K. Kanters Michael V. Højgaard Niels-Henrik Holstein-Rathlou 《Integrative psychological & behavioral science》1998,33(4):315-320
The contribution of nonlinear dynamics to heart rate variability in healthy humans was examined using surrogate data analysis.
Several measures of heart rate variability were used and compared. Heart rates were recorded for three hours and original
data sets of 8192 R-R intervals created. For each original data set (n=34), three surrogate data sets were made by shuffling
the order of the R-R intervals while retaining their linear correlations. The difference in heart rate variability between
the original and surrogate data sets reflects the amount of nonlinear structure in the original data set. Heart rate variability
was analyzed by two different nonlinear methods, point correlation dimension and approximate entropy. Nonlinearity, though
under 10 percent, could be detected with both types of heart rate variability measures. More importantly, not only were the
correlations between these measures and the standard deviation of the R-R intervals weak, the correlation among the nonlinear
measures themselves was also weak (generally less than 0.6). This suggests that in addition to standard linear measures of
heart rate variability, the use of multiple nonlinear measures of heart rate variability might be useful in monitoring heart
rate dynamics. 相似文献
94.
95.
96.
97.
Control of responding by location of auditory stimuli: rapid acquisition in monkey and rat 总被引:1,自引:0,他引:1
下载免费PDF全文
![点击此处可从《Journal of the experimental analysis of behavior》网站下载免费的PDF全文](/ch/ext_images/free.gif)
J. M. Harrison P. Downey M. Segal M. Howe 《Journal of the experimental analysis of behavior》1971,15(3):379-386
Monkeys require a considerably larger number of trials to bring responding under the control of the location of an auditory stimulus than cats, rats, and bats with the same experimental procedures. The present experiment sought to determine the conditions necessary for rapid acquisition of control of responding by location of noise and tone bursts in the monkey. Monkeys were run in an enclosure that contained four loudspeakers and four manipulanda. Two conditions were used in training. In the adjacent condition, a stimulus (noise or tone burst) was presented through one or other of two speakers and a response on the manipulandum adjacent to the speaker was reinforced with food. In the nonadjacent condition, a stimulus was presented through one of two speakers and a response on a manipulandum remote from the speaker was reinforced with food. Acquisition of control was measured by change in the percentage of reinforced responses during training. In the adjacent condition, responding came under control of location within zero to three sessions. In nonadjacent conditions, the animals required 14 to 20 sessions to come under control of location. These latter numbers are comparable to those reported in the literature for localization discrimination in monkeys. 相似文献
98.
99.
Object-substitution masking (OSM) is a unique paradigm for the examination of object updating processes. However, existing models of OSM are underspecified with respect to the impact of object updating on the quality of target representations. Using two paradigms of OSM combined with a mixture model analysis we examine the impact of post-perceptual processes on a target’s representational quality within conscious awareness. We conclude that object updating processes responsible for OSM cause degradation in the precision of object representations. These findings contribute to a growing body of research advocating for the application of mixture model analysis to the study of how cognitive processes impact the quality (i.e., precision) of object representations. 相似文献
100.
Comparison of the Effects of Telephone Suicide Prevention Help by Volunteers and Professional Paid Staff: Results from Studies in the USA and Quebec,Canada
下载免费PDF全文
![点击此处可从《Suicide & life-threatening behavior》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Brian L. Mishara PhD Marc Daigle PhD Cécile Bardon PhD François Chagnon PhD Bogdan Balan MD PhD Sylvaine Raymond MA Julie Campbell MA 《Suicide & life-threatening behavior》2016,46(5):577-587
Research since the 1960s has consistently found that lay volunteers are better at helping suicidal callers than professionals. Yet, professional degrees are increasingly becoming requirements for helpline workers. In our first study, we conducted post hoc comparisons of U.S. helplines with all professional paid staff, all lay volunteers, and a mix of both, using silent monitoring and standardized assessments of 1,431 calls. The volunteer centers more often conducted risk assessments, had more empathy, were more respectful of callers, and had significantly better call outcome ratings. A second study of five Quebec suicide prevention centers used silent monitoring to compare telephone help in 1,206 calls answered by 90 volunteers and 39 paid staff. Results indicate no significant differences between the volunteers and paid employees on outcome variables. However, volunteers and paid staff with over 140 hours of call experience had significantly better outcomes. Unlike the United States, Quebec paid employees were not required to have advanced professional degrees. We conclude from these results and previous research that there is no justification for requiring that suicide prevention helpline workers be mental health professionals. In fact, the evidence to date indicates that professionals may be less effective in providing telephone help to suicidal individuals when compared to trained lay volunteers. 相似文献