首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   27155篇
  免费   283篇
  国内免费   2篇
  2021年   56篇
  2020年   110篇
  2019年   125篇
  2018年   3596篇
  2017年   2956篇
  2016年   2385篇
  2015年   337篇
  2014年   245篇
  2013年   926篇
  2012年   832篇
  2011年   2633篇
  2010年   2653篇
  2009年   1651篇
  2008年   1947篇
  2007年   2408篇
  2006年   282篇
  2005年   471篇
  2004年   410篇
  2003年   338篇
  2002年   289篇
  2001年   136篇
  2000年   149篇
  1999年   127篇
  1998年   143篇
  1997年   99篇
  1996年   91篇
  1995年   95篇
  1994年   80篇
  1993年   70篇
  1992年   71篇
  1991年   71篇
  1990年   64篇
  1989年   65篇
  1988年   60篇
  1987年   52篇
  1986年   55篇
  1985年   75篇
  1984年   74篇
  1983年   68篇
  1982年   60篇
  1981年   62篇
  1980年   63篇
  1979年   43篇
  1978年   63篇
  1977年   57篇
  1976年   64篇
  1975年   58篇
  1974年   54篇
  1973年   43篇
  1972年   37篇
排序方式: 共有10000条查询结果,搜索用时 125 毫秒
271.
272.
Studied attitude change following counter-attitudinal advocacy where there was little incentive for subject compliance in an attempt to compare dissonance and self-perception theory predictions. The extent of attitude change was determined either by self-report or by having subjects predict their own true attitudes purportedly monitored by the experimenter using a ‘bogus pipeline’. Forty-eight male and female subjects, students from an introductory Psychology course, were invited to take part in a study of Current Campus Issues. They wrote a short statement that argued against an issue for which they had previously held a positive attitude. Results indicate that there was a significant attitude change in both conditions (p < .003). Attitude change under these circumstances is more successfully explained by the self-perception theory than dissonance theory.  相似文献   
273.
Previous investigations of the effects of bogus arousal feedback on approach toward an aversive stimulus have failed to separate two conceptual issues: (1) the influence of perceived anxiety on approach behavior, and (2) the degree to which perceptions of decreased anxiety are central to systematic desensitization. The present research deals with only the first of these issues. The procedure required each subject to attach a microphone to his or her chest and approach a snake. Bogus heartbeat feedback was presented concurrently with the subject's approach. In Experiments 1 and 2, self-reported snake phobics approached more with a constant than with an accelerating heartbeat. Nonphobics in Experiment 2 were not systematically influenced by the feedback. In Experiment 3, subjects with moderate fear, but who had stated that they could pick up a snake, behaved like the previously tested nonphobics; moderate fear subjects who had stated uncertainty about their ability to handle a snake behaved like previously tested phobics. In no case did postexperimental self-rated fear of snakes yield a difference between feedback conditions. The results are discussed in terms of the attributional analysis of emotional behavior.  相似文献   
274.
In deciding that two items come from the same category, subjects were delayed if the items were presented as a word and a picture, as compared with two words or two pictures. Subjects were not delayed if the items were not to be compared. Hence, the delay appears to occur during the retrieval and comparison of know ledge about the items, not during their perceptual analysis. The results suggest that there are two distinct codes involved in the categorization of words and pictures, rather than a single code.  相似文献   
275.
The experiment was designed to test differential predictions derived from dual-coding and depth-of-processing hypotheses. Subjects under incidental memory instructions free recalled a list of 36 test events, each presented twice. Within the list, an equal number of events were assigned to structural, phonemic, and semantic processing conditions. Separate groups of subjects were tested with a list of pictures, concrete words, or abstract words. Results indicated that retention of concrete words increased as a direct function of the processing-task variable (structural < phonemic 相似文献   
276.
In contrast to the findings of Bransford and Franks (1971) that no specific information is retained about acquisition sentences in their recognition memory paradigm, it was shown that subjects can consistently distinguish OLDs from NEWs when visual presentation is used, but not when auditory presentation is used. This is in agreement with the speculation of Katz and Gruenewald (1974) as to why such a split was observed in their study. This difference also has a bearing on the typical finding of no modality effects in long-term memory, as compared to the consistent superiority of auditory presentation in short-term memory. It was also found that blocking semantically related sentences during acquisition heightened the perceived "OLDness" of test sentences compared to nonblocked presentation.  相似文献   
277.
This study was a longitudinal one that examined the effects of certain conditions on alternation and perseveration in a binary-choice task. The conditions manipulated included: (1) lapse of time (stability of the pattern), (2) stimulus dissimilarity, (3) spatial location of the two alternatives, (4) time-out (time away from the task), (5) delay between responses, and (6) differential reinforcement of the two choices. Eight mentally retarded adults, identified as “pure” alternaters or perseveraters, served as subjects. Perseveration was “disrupted” only by differential reinforcement. Alternation was affected by all experimental manipulations with the exception of stimulus dissimilarity.  相似文献   
278.
One hundred and sixty undergraduates (80 males, 80 females) participated in a field experiment designed to examine the influence of invasions of personal space and sex of requester upon subsequent helping. On the basis of previous research, it was predicted that helping would be markedly inhibited by invasions of personal space, and that the magnitude of these effects would be mediated by the sex of the individuals who perpetrated such intrusions. Surprisingly, however, results indicated that subsequent helping was actually facilitated by such invasions. A follow-up investigation replicated these results and suggested that they stemmed from a tendency on the part of subjects to perceive close physical approach by the requester as indicative of a high need for assistance.  相似文献   
279.
It was hypothesized in a two-person situation that students would perform significantly better on intellectual tasks when paired with a liked other than when paired with a disliked other. In a laboratory experiment, 108 male undergraduates performed one of three types of intellectual tasks with an attitudinally similar or dissimilar partner or with a partner about whom the subject had no attitude information. Individuals paired with a similar partner felt affectively more positive than those paired with a dissimilar partner (p < .01). Individuals paired with a similar other performed significantly better on the tasks than those paired with a dissimilar partner (p < .01).  相似文献   
280.
In two experiments with paired rats, the effect of superimposing CS-US pairings on a baseline of shock-elicited aggression was studied. Baseline shocks (3.0 mA, 0.125-sec duration) occurred at a rate of 20 shocks per min throughout each session. In Experiment I, each independent group of two pairs of subjects received (in addition to baseline shocks) US shocks of 1.0, 3.0, or 5.0 mA and 5-sec duration, each shock signalled by a 1-min CS. At all three US intensities, aggression increased during the CS. In Experiment II, pairs of subjects received each unconditioned stimulus intensity in a within-subjects design. This procedure revealed a direct relationship between rate of responding and unconditioned shock intensity.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号