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   337篇
  免费   7篇
  344篇
  2020年   5篇
  2019年   4篇
  2018年   4篇
  2017年   5篇
  2016年   11篇
  2014年   10篇
  2013年   32篇
  2012年   8篇
  2011年   9篇
  2010年   8篇
  2009年   11篇
  2008年   9篇
  2007年   8篇
  2006年   13篇
  2005年   10篇
  2004年   13篇
  2003年   6篇
  2002年   7篇
  2001年   5篇
  2000年   5篇
  1999年   5篇
  1998年   5篇
  1997年   4篇
  1996年   4篇
  1995年   4篇
  1994年   4篇
  1993年   5篇
  1992年   11篇
  1990年   4篇
  1988年   3篇
  1987年   6篇
  1986年   5篇
  1985年   3篇
  1984年   3篇
  1983年   4篇
  1982年   3篇
  1980年   3篇
  1979年   8篇
  1975年   6篇
  1974年   4篇
  1973年   6篇
  1972年   6篇
  1971年   4篇
  1970年   3篇
  1968年   6篇
  1967年   3篇
  1965年   3篇
  1959年   3篇
  1953年   3篇
  1937年   3篇
排序方式: 共有344条查询结果,搜索用时 15 毫秒
241.
242.
In a study of factors influencing recognition-memory for the sources of attitude statements, a final sample of 107 subjects, aged 15–16, first rated their agreement with 24 statements concerning drug-use, 12 of which were attributed to one, and 12 to another, fictitiously named newspaper. Later, the statements were re shown to subjects with half the names altered, and subjects had to indicate which names were correct (i.e., unaltered). Discrimination sensitivity was very significantly higher in a condition where the initial relationship between the sources and the statements was systematic, so that the 12 most pro-drug statements were attributed to one newspaper and the 12 most anti-drug statements to the other, than in two conditions where the initial relationship was random, in which discrimination was at chance level. In the first of these conditions, subjects were also more likely to claim that the attributed source was correct if they had previously agreed with the statement. overall, subjects were more accurate in discriminating correct and incorrect sources for statements to which they had previously given a more moderate, or a more negative response on the agreement scale.  相似文献   
243.
Considering an interactive computer as a social stimulus suggests that contemporary social psychological theories can contribute to the prediction of user attitude and performance. In order to assist in the systematic exploration of this possibility, we developed DIALOGUE, an on-line system to investigate the effects of varying the computer’s responses to the user. This system involves a presentation program that displays the computer’s responses, performs the pacing of video information, and collects a variety of measurements, including the user’s response time and the number of correct/incorrect user responses. DIALOGUE also includes a data manager that allows the experimenter to examine or modify the information collected by the presentation program. Utilizing DIALOGUE, we conducted a preliminary investigation of one aspect of human-computer interaction, the effects of varying the degree of human-like responses exhibited by the computer. Results suggest that (1) there are underlying dimensions of judgment involving perception of interactive computers, (2) a manipulation of human-like computer responses is reflected primarily in certain of these dimensions, and (3) such a manipulation influences user performance and feelings of responsibility. Factors related to the implementation of DIALOGUE are considered, and its potential for investigations of a variety of human-computer interactions is discussed.  相似文献   
244.
Sinusoidal gratings of various spatial frequencies were used as masking stimuli in a detection task and a vernier acuity task. The test stimuli were 1 cycle/deg square-wave gratings. The spatial frequency of the most effective mask was 1 cycle/deg for the detection task but 3 cycles/deg for the vernier acuity task. The different masking functions for the two tasks show that the visual system analyzes the square-wave stimulus into its various spatial-frequency components. Since the test stimulus was the same for both tasks, the different masking functions may be the result of an attentional mechanism that weighs the importance of the output from various spatial-frequency analyzers. Whether the information from a particular spatial-frequency analyzer is attended or not depends upon the task the visual system must perform.  相似文献   
245.
Repeated measurements of episodic memory are needed for monitoring amnestic mild cognitive impairment (aMCI) and mild Alzheimer’s disease (AD). Most episodic memory tests may pose a challenge to patients, even when they are in the milder stages of the disease. This cross-sectional study compared floor effects of the Visual Association Test (VAT) and the Rey Auditory Verbal Learning Test (RAVLT) in healthy elderly controls and in patients with aMCI or AD (N = 125). A hierarchical multiple regression analysis was used to examine whether linear or quadratic trends best fitted the data of cognitive test performance across global cognitive impairment. Results showed that VAT total scores decreased linearly across the range of global cognitive impairment, whereas RAVLT total scores showed a quadratic trend, with total scores levelling off for 90% of aMCI patients and 94% of AD patients. We conclude that the VAT shows few if any floor effects in patients with aMCI and mild AD and is therefore a potentially promising cognitive test for monitoring episodic memory impairment.  相似文献   
246.
An empirically corroborated model of proenvironmental commitments is outlined. According to this model, willingness to contribute to the saving of global commons (atmosphere, oceans, etc.) is motivated by the awareness of global ecological risks, by perceived injustices of the distributions of benefits and costs resulting from exploiting and polluting activities, and by the conviction that many actors—ordinary citizens as well as powerful authorities in business and politics—have both effective means and responsibilities to contribute to the protection of the environment. Political implications are drawn from the typical attributional pattern of multi‐responsibility for environmental protection and from the perception of distributive injustices of the current overuse and pollution of commons. Basic issues of ecological justice are discussed.  相似文献   
247.
Older cities struggling with issues of survival focus on jobs and the economy, but competition requires all cities to pay attention to the quality of life that attracts residents. Creating such an inviting environment includes “third places” that foster community and communication among people outside of home and work, yet we have little empirical evidence that speaks to the subject, or their importance for a community’s quality of life. Here we report on a national U.S. survey that asked people to identify such places in their community, producing a wide variety of “third places” that ranged from the most popular community centers, coffee shops and restaurants to parks and malls. While a few relationships are found between population/diversity and the popularity of particular third places, the most important result confirms a hypothesized relationship between perceptions that third places are accessible in their community and the perceived quality of life.  相似文献   
248.
Rough‐and‐tumble play (RTP) is a common form of play between fathers and children. It has been suggested that RTP can contribute to the development of selfregulation. This study addressed the hypothesis that the frequency of father–child RTP is related to the frequency of physically aggressive behavior in early childhood. This relationship was expected to be moderated by the dominance relationship between father and son during play. Eighty‐five children between the ages of 2 and 6 years were videotaped during a free‐play session with their fathers in their homes and questionnaire data was collected about father–child RTP frequency during the past year. The play dyads were rated for the degree to which the father dominated play interactions. A significant statistical interaction revealed that RTP frequency was associated with higher levels of physical aggression in children whose fathers were less dominant. These results indicate that RTP is indeed related to physical aggression, though this relationship is moderated by the degree to which the father is a dominant playmate. Aggr. Behav. 35:285–295, 2009. © 2009 Wiley‐Liss, Inc.  相似文献   
249.
It has long been assumed that people experience evaluative conflict or ambivalence as unpleasant. In three studies we provide direct evidence for the assumption that ambivalence is unpleasant, but only when one has to commit to one side of the issue. In those situations ambivalence will be related to outcome uncertainty and feelings of discomfort. We examined this prediction using both self-reports and physiological measures. In a first study we manipulated ambivalence and whether or not participants had to take a clear stand vis-a vis the attitudinal issue and choose a position for or against it. Results indicate ambivalence was only related to physiological arousal when a choice had to be made. Feeling ambivalent about an issue without the necessity to choose did not result in higher levels of arousal. A second study replicated and extended these findings by including a measure of subjective uncertainty about the decision. Results showed the same pattern as in Study 1, and indicate that the relation between ambivalence and arousal is mediated by uncertainty about decisional outcomes. In the third and final study these findings are corroborated using self-report measures; these indicated that ambivalence-induced discomfort is related to specific (negative) emotions.  相似文献   
250.
This paper presents the results of an analysis of the lexical term ‘querer’ (want) qua genuine reference to desire. The instances of ‘querer’ to be analyzed were taken from the naturally occurring speech of monolingual speakers of Spanish. Specifically, a database of 24,558 child utterances taken from the CHILDES system was analyzed. This corpus yielded 444 utterances with the desire term ‘querer’. The utterances belong to several children whose ages range from 21 to 46 months. The results of this study support the hypothesis that children consistently refer to desire at around 2 years of age and that children undergo a marked increase in their reference to this concept at 36 months of age, although it is not yet clear whether they start referring to their own desires before those of someone else.  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