全文获取类型
收费全文 | 61364篇 |
免费 | 1292篇 |
国内免费 | 3篇 |
专业分类
62659篇 |
出版年
2020年 | 570篇 |
2019年 | 767篇 |
2018年 | 1007篇 |
2017年 | 1043篇 |
2016年 | 1115篇 |
2015年 | 813篇 |
2014年 | 955篇 |
2013年 | 4408篇 |
2012年 | 1775篇 |
2011年 | 1926篇 |
2010年 | 1219篇 |
2009年 | 1190篇 |
2008年 | 1705篇 |
2007年 | 1734篇 |
2006年 | 1574篇 |
2005年 | 1387篇 |
2004年 | 1283篇 |
2003年 | 1211篇 |
2002年 | 1314篇 |
2001年 | 1984篇 |
2000年 | 1953篇 |
1999年 | 1481篇 |
1998年 | 698篇 |
1997年 | 621篇 |
1996年 | 617篇 |
1993年 | 556篇 |
1992年 | 1244篇 |
1991年 | 1148篇 |
1990年 | 1130篇 |
1989年 | 1031篇 |
1988年 | 1016篇 |
1987年 | 970篇 |
1986年 | 1044篇 |
1985年 | 1053篇 |
1984年 | 881篇 |
1983年 | 809篇 |
1982年 | 563篇 |
1981年 | 563篇 |
1979年 | 947篇 |
1978年 | 671篇 |
1975年 | 766篇 |
1974年 | 816篇 |
1973年 | 914篇 |
1972年 | 768篇 |
1971年 | 727篇 |
1970年 | 649篇 |
1969年 | 668篇 |
1968年 | 857篇 |
1967年 | 775篇 |
1966年 | 652篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
901.
REM motivation induced by brief REM deprivation: the influence of cognition, gender, and personality. 总被引:1,自引:0,他引:1
D B Cohen M J McGarth L W Bell M J Hanlon N Simon 《Journal of personality and social psychology》1978,36(7):741-751
Prominence of the brain's right-hemisphere information processing and intensity of dream experience are two theoretically related constructs that have been proposed as important psychological aspects of REM sleep. Either view is consistent with the prediction that the effect of REM deprivation will depend in part on the nature of cognitive activity that is initiated at the onset of each REM period and that "substitutes" for the interrupted REM process. In the present study, the effect of REM deprivation was more striking for female subjects given a digits task than for female subjects given a fantasy-reporting task during awakening used to induce REM deprivation for the first 6 hours of the night. High neuroticism appeared to exaggerate the effect. No corresponding pattern was observed for the male subjects. These preliminary finding may be exaggerated by cognitive activity that is functionally incongruent with those processes. The results also raise interesting questions about individual differences. 相似文献
902.
Based on the tenets of logical learning theory and the research in its support, it was predicted that subjects (87 seventh and eighth graders) would score higher on subtests of the Wechsler Intelligence Scale for Children which they had assessed positively than on those which they had negatively assessed. This superiority on liked over disliked subtests was also predicted to be greater for Black than for White subjects and for lower class, compared with middle class, subjects. Subjects performed significantly better on their liked than on their disliked subtests, p < .01, supporting the telic human image advanced by logical learning theory. No racial or social class differences in this effect were seen. 相似文献
903.
Golden CJ 《Journal of personality assessment》1978,42(2):167-170
Cross-cultural personality research has generated a great amount of data on individual difference patterns in diverse cultures. One of the major instruments used in this research has been Cattell's 16PF. A major question in this research is whether the underlying personality structure is equivalent for different cultures. The present study evaluated the second order factor structure of the 16PF in 101 subjects of European ancestry and 117 subjects of Japanese ancestry. The factor structure for the Japanese was significantly different from that of the caucasian group. The caucasian results did not differ from those reported by Cattell and his associates. The implications of these results for personality theory and for cross-cultural evaluation were briefly discussed. 相似文献
904.
905.
The paper reviews 24 case studies and experiments which assess behavior therapy for asthma or some collateral behavior management problem. The reports are examined in terms of treatment population, design, dependent variable, technique, outcome, and follow-up. Methodological and instrumentation suggestions are made for future research. 相似文献
906.
A sexual sadist was treated by an olfactory aversion procedure for eight weeks. Pre-treatment assessment of sexual arousal showed high levels of response to sadistic stimuli as well as high arousal to non-sadistic heterosexual stimuli. In treatment the inhalation of the gas of an odoriferous chemical agent, valeric acid, was paired with slide presentations of sadistic materials while penile erection was monitored. The aversive stimulus immediately and permanently suppressed the response for the duration of treatment. In separate measurement sessions, with valeric acid absent, deviant response remained suppressed and nondeviant response was unaffected. Post-treatment reassessment revealed very low levels of response to sadistic stimuli. Follow-up sessions showed that the deviant response was absent eight months following the conclusion of treatment. 相似文献
907.
908.
909.
Schnelle JF Kirchner RE Macrae JW McNees MP Eck RH Snodgrass S Casey JD Uselton PH 《Journal of applied behavior analysis》1978,11(1):11-21
The significance of a helicopter patrol procedure directed toward prevention of home burglaries was evaluated from experimental and cost-benefit perspectives. The helicopter patrolled one city zone from 9 a.m. to 5 p.m. for two 12-day periods. Each 12-day period was separated by a baseline period in which only normal patrol-car levels were maintained. Significantly reduced burglary levels during the intervention periods, compared to baseline periods, documented the experimental significance of the helicopter procedure. The cash costs of implementing the patrol procedure were compared to two estimates of the resulting cash benefits. This latter cost-benefit analysis was supplemented by a discussion of the intangible costs and benefits of the helicopter procedure. Taken together, these analyses documented that the marginal costs of the helicopter intervention were exceeded by all estimates of benefits. 相似文献
910.
L Hartley T Henry J Couper-Smartt 《British journal of psychology (London, England : 1953)》1978,69(2):271-276
The effect of 25 mg or 75 mg of chlorpromazine on the serial reaction performance of 12 male human subjects was studied. Speed or number of correct responses was reduced by the high dose of chlorpromazine and errors of commission and omission were increased. The adverse effect of the drug upon speed appeared only at the end of the half-hour test. By contrast the adverse effect upon gaps and errors was apparent throughout the test and there was no interaction with test duration. 相似文献