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   879篇
  免费   53篇
  2023年   6篇
  2021年   7篇
  2020年   22篇
  2019年   24篇
  2018年   30篇
  2017年   18篇
  2016年   25篇
  2015年   20篇
  2014年   20篇
  2013年   101篇
  2012年   36篇
  2011年   40篇
  2010年   26篇
  2009年   31篇
  2008年   40篇
  2007年   33篇
  2006年   21篇
  2005年   25篇
  2004年   40篇
  2003年   31篇
  2002年   24篇
  2000年   12篇
  1999年   15篇
  1998年   11篇
  1997年   14篇
  1996年   10篇
  1995年   11篇
  1994年   9篇
  1993年   6篇
  1992年   6篇
  1991年   7篇
  1988年   6篇
  1987年   7篇
  1986年   7篇
  1985年   10篇
  1984年   11篇
  1983年   9篇
  1982年   12篇
  1981年   10篇
  1980年   10篇
  1979年   10篇
  1978年   14篇
  1977年   12篇
  1976年   9篇
  1975年   10篇
  1974年   15篇
  1973年   15篇
  1972年   5篇
  1970年   5篇
  1966年   5篇
排序方式: 共有932条查询结果,搜索用时 15 毫秒
781.
Step-path theory of action is used to conceptualize future orientation (FO) as anticipated path characteristics and to derive its function. Study 1 finds that stories written to FO sentences are significantly higher on n Achievement when referring to a young person, while stories written to past orientation sentences tend toward higher scores when referring to an old person. Study 2 finds that extremes on chronological age tend to accentuate these trends. Study 3 supports the “multiplicative rule” for the combination of subjective probabilities of success (Ps) along a contingent path for group data. Individual data show that the predicted accentuation of achievement motivation is mediated by a decrease in path length for nonmultipliers of Ps (time FO), and by an increase in path length for multipliers of Ps (task FO). Path Ps also influences the effects of time and task FO.  相似文献   
782.
Attentional deficits in patients suffering traumatic brain injury (TBI) can occur with minor to severe impact to the brain. Based on reviews of both the cognitive and neurobehavioral literature, the following three concepts of attention are addressed: (a) arousal/alertness, (b) selective attention, and (c) energetic aspects of attention, which include such components as effort, resource allocation, and speed of processing. Within each concept, definitions are proposed, the underlying brain mechanisms are identified, and the specific deficits associated with TBI are explored. This review combines theoretical perspectives and clinical findings with the objective of leading toward a diagnostic differentiation that in turn will benefit treatment planning.  相似文献   
783.
The present study constituted an initial experimental effort to examine the fragmentation characteristics of subjective contours within the photopic and upper 5cotopic ranges of illumination. Four stimulus factors known to influence the visibility of subjective contours—target luminance, inducing area size and contrast, and contour orientation—were examined. Results indicated that subjective contours are indeed unstable perceptual phenomena. On the average, fragmentation or fading occurred after only 15 sec of observation, and some farm of stimulus outage was present for 28% of the viewing time of each stimulus. Fragmentation latency was significantly shorter and total time in fragmentation longer for diamond than for square contours, and total time in fragmentation varied inversely with inducing-area size. Fragmentation tendedto occur in whole units rather than in isolated elements, a result reminiscent of the fading of real Contours under impoverished viewing conditions.  相似文献   
784.
The Mental Health Studios is an interactive multimedia program designed to educate the public about the biological basis of mental and addictive disorders. Using sound, text, graphics, charts, and video, the software provides detailed scientific information about the brain and depression, bipolar disorder, schizophrenia, anxiety disorders, and substance abuse. An evaluation study of a permanent display at the St. Louis Science Center revealed that most visitors spent less than 5 min with the computer program but nevertheless demonstrated significant changes in attitude toward people with mental and addictive disorders. Senior high-school students who interacted with the program for 20 min experienced even greater attitude changes, and their knowledge about mental and addictive disorders also increased significantly.  相似文献   
785.
A number of studies have failed to find that gender constancy (understanding that one's gender is permanent) predicts gender-typed attitudes and behavior. This study (run with a predominantly white sample) tests the hypothesis that gender constant children are motivated to master gender roles, but that how well they do so depends on their knowledge of gender stereotypes. We predicted that attitudes toward computer use (a stereotypically male activity) would be less positive only for 5–9-year-old gender constant girls who also had rich gender stereotypes. Predictions were confirmed, especially for girls whose constancy had recently increased. These data thus suggest that the clearest picture of gender role development emerges when both the unique and interactive effects of gender constancy and gender schema development are assessed. They also indicate that gender differences in computer attitudes can develop through self-socialization processes.This research was supported in part by research Grant No. R37 MH37215 and Research Scientist Development Award No. 00484 from the National Institute of Mental Health to the third author. The first two authors gratefully acknowledge the support of the James S. McDonnell Foundation. All authors would also like to thank Tom Alfieri, Faith Greulich, and Lisa Cyphers for their help at various stages of this project.  相似文献   
786.
One year after Operation Desert Storm, marital adjustment was studied among 773 Army spouses married to soldiers who had been deployed. Interviews with some spouses and soldiers, conducted during site visits to a sample of installations, led to the identification of 19 marital adjustment events. Questions regarding these events were included in a mailed questionnaire that was sent to a sample of Army spouses. A factor analysis of the 19 events produced five factors: (a) Distance, (b) Closeness, (c) Role sharing, (d) Independent Spouse, (e) Dependent Spouse/Withdrawn Soldier. Predictors of factor scores were examined through multiple regression analysis. Predictors of factor scores included stress, prior marital problems, social support, and emotional well-being. Most spouses adjusted well to the deployment. Adjustment patterns are discussed in light of previous literature on war separation and attachment theory.  相似文献   
787.
This research focuses on male and female observers' attributions of responsibility to a female accuser and a male accused of rape. Observers read 1 of 2 scenarios in which the accuser was either smaller or larger than the accused and then made judgments concerning each person's responsibility for what happened. The data indicated that the larger accuser was considered more responsible than the smaller accuser and the larger accused was perceived to be more responsible than the smaller accused. Females attributed more responsibility and had less sympathy, respect, and liking for the accused, whereas males attributed more responsibility and reported more negative attitudes toward the accuser. The results are discussed in terms of their implications for legal and health-care professionals.  相似文献   
788.
We investigated the effectiveness of a simplified program for the treatment of stuttering in children. The simplified treatment included awareness training, in which the subjects learned to detect every occurrence of stuttering; training a response incompatible with stuttering, which involved relaxation and regulation of air flow over the larynx when speaking; and social support, which involved parent-delivered prompts and praise of children's use of the techniques in everyday environments. Eight children were treated in their homes with the simplified treatment, in a multiple baseline across subjects design, and all reached the criterion level of less than 3% words stuttered. In addition, the reduction in stuttering generalized to the school setting and was maintained at posttreatment (10 to 13 months). The subjects' rates of speech remained stable throughout baseline and treatment. Pretreatment and posttreatment ratings by the parents showed that they found treatment to be both acceptable and credible. Finally, social validity measures revealed a noticeable improvement in the subjects' speech to parents and speech pathologists.  相似文献   
789.
ABSTRACT A review of the literature on individual differences in motive dispositions points toward the importance of distinguishing between motives as assessed in fantasy and self-report. We proposed that these two modes of assessment have identified independent motivational systems that influence behavior in different ways. Two experiments were designed to show that the two kinds of motives are unrelated to one another and are aroused by different factors in a performance situation. It was hypothesized that motives as assessed from fantasy (seen as implicit needs) are primarily aroused by factors intrinsic to the process of performing an activity, whereas motives obtained through self-report inventories (seen as self-attributed needs) are aroused by social factors that are extrinsic to the process of performing an activity (e.g., the way in which a task is presented by an experimenter). In the first experiment, performance on a memory task was shown to depend on the interaction of subjects' self-reported motive for achievement with achievement-arousing instructions, whereas performance on a word-finding puzzle depended on the interaction of subjects' fantasy need for achievement with the puzzle's level of intrinsic challenge. A second experiment generalized these findings to the power domain.  相似文献   
790.
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