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   644篇
  免费   31篇
  675篇
  2023年   6篇
  2022年   6篇
  2021年   7篇
  2020年   13篇
  2019年   20篇
  2018年   28篇
  2017年   22篇
  2016年   32篇
  2015年   15篇
  2014年   22篇
  2013年   70篇
  2012年   42篇
  2011年   33篇
  2010年   13篇
  2009年   17篇
  2008年   24篇
  2007年   22篇
  2006年   20篇
  2005年   28篇
  2004年   18篇
  2003年   23篇
  2002年   14篇
  2001年   11篇
  2000年   12篇
  1999年   11篇
  1998年   7篇
  1997年   4篇
  1996年   3篇
  1995年   5篇
  1993年   4篇
  1992年   4篇
  1991年   8篇
  1990年   4篇
  1989年   6篇
  1988年   3篇
  1987年   7篇
  1986年   4篇
  1983年   8篇
  1982年   4篇
  1981年   3篇
  1980年   3篇
  1979年   4篇
  1978年   5篇
  1973年   7篇
  1972年   3篇
  1969年   4篇
  1968年   8篇
  1967年   8篇
  1966年   8篇
  1964年   3篇
排序方式: 共有675条查询结果,搜索用时 15 毫秒
111.
Current models of affect and health posit that affective disturbance influences health through behavioral pathways. The current research explores this hypothesis in the domain of sexual risk behavior by testing explicit and implicit hopelessness as predictors of condom use. Male and female undergraduates (n = 60) completed implicit and explicit measures of depression, hopelessness, and self‐reported condom use frequency. Findings revealed that implicit hopelessness predicted less condom use. However, this relationship was moderated by gender such that implicit hopelessness predicted less condom use for men, but not for women. The applicability of the findings to broader health theories is discussed.  相似文献   
112.
To determine if choroidal melanoma patients want cytogenetic prognostic information. Ninety-nine choroidal melanoma patients completed a questionnaire regarding their opinions about receiving prognostic information. The perceived usefulness of prognostic information was evaluated in patients who had undergone cytogenetic testing. Depressive symptoms, quality of life, and interest in supportive counseling during test receipt were assessed. Ninety-seven percent of respondents reported that they would have wanted prognostic information at the time of their treatment and 98% of respondents reported that supportive counseling should be offered when prognostic information is given. Patients who had received a more favorable prognostic result were more likely to endorse the usefulness of cytogenetic testing than were patients who had received a less favorable prognostic result. Psychological status did not vary significantly as a function of cytogenetic test result. Prognostic information was important to patients with choroidal melanoma, even in the absence of prophylactic measures which might improve prognosis.  相似文献   
113.
In the conflict/control loop theory proposed by Botvinick, Braver, Barch, Carter, and Cohen (2001), conflict monitored in a trial leads to an increase in cognitive control on the subsequent trial. The critical data pattern supporting this assertion is the so-called Gratton effect—the decrease in flanker interference following incongruent trials—which was initially observed in the Eriksen flanker task. Recently, however, the validity of the idea that this pattern supports a general conflict/control mechanism has been questioned on the grounds that the Gratton effect is only observed with stimulus repetition. We present an experiment testing whether the Gratton effect reflects a stimulus-independent increase in cognitive control or stimulus-specific repetition priming. Although our results support the latter hypothesis, the priming effect is modulated by the congruency of the previous trial. We discuss a new mechanism through which monitored conflict is used to exert executive control by modulating stimulus-response associations.  相似文献   
114.
75 subjects were randomly assigned to five self-efficacy conditions (High-High, High-Low, Low-High, Low-Low, and Control) in a 5 x 3 (condition x trial) design. Pressure was applied three times to an exposed finger. After baseline, subjects received false biofeedback (i.e., independent of ratings of pain) that their ability to regulate intensity of pain was either good (High-High and High-Low) or poor (Low-High and Low-Low), or there was no biofeedback (Control). After a second trial, subjects were told that their biofeedback indicated either good (High-High and Low-High) or poor (High-Low and Low-Low) regulatory ability, or they were not given biofeedback (Control). They then received a final trial. Before each trial, subjects recorded self-efficacy expectations for regulating intensity of pain. Mixed multivariate analyses of variance on ratings of intensity and self-efficacy expectations did not yield hypothesized interactions for condition x trial.  相似文献   
115.
LISTENING TO NICOTINE:   总被引:1,自引:0,他引:1  
Abstract— In recent years, theoretical models of drug motivation and drug dependence have downplayed the role of withdrawal symptoms in the maintenance of addiction. During this same period, strong links between drug use and measures of negative affect have been uncovered in empirical research. In this article we examine these trends in the context of research on smoking. Evidence is presented from two recent studies on smoking relapse that highlight the intimate connection between withdrawal symptomatology and negative affect Specifically, these studies reveal that (a) single-occasion measures of withdrawal symptoms or other markers of physical dependence do not contribute incremental validity in preceding relapse relative to measures of negative affect (b) the trajectory of withdrawal symptoms is highly idiosyncratic, (c) exacerbations cannot be tightly coupled with pharmacological events. (d) the temporal dynamics of withdrawal reflect fluctuations in negative affect, and (e) differences in the trajectory of withdrawal symptoms index relapse vulnerability. We conclude that a broadened view of withdrawal recognizing its probable affective bases will enhance its explanatory power and suggest new treatment strategies.  相似文献   
116.
Two questionnaires which purport to assess attitudes toward gender role, the Maferr Inventory of Feminine Values and the Sex Stereotype Questionnaire, were submitted to a factor analysis. While each analysis of the five response set items yielded interpretable factors with unequivocal item scores, the obtained factors are not consistent with the a priori assignment of items to "groupings" suggested by the manuals for these instruments. The implications of using questionnaires with questionable psychometric properties is discussed.  相似文献   
117.
Expectation and burnout in the developmental disabilities field   总被引:3,自引:0,他引:3  
Psychological burnout was assessed in staff members at workshops and community residences for the developmentally disabled. Participants also rated expectations for client progress and for their own contribution to clients. They reported on change in expectation since they entered the field. High expectations were related to low burnout; workers who reported experiencing large negative expectation change were most burned out. Burnout seemed to be prevented when staff members made an expectation shift from reliance on client progress to a sense of personal efficacy. This finding is discussed in terms of personal causation, internal control of reinforcement, and adaptation-level theory. There was little evidence of client depersonalization, a usual component of burnout. Such a burnout pattern may be a function of the ethic of community care for the developmentally disabled.  相似文献   
118.
This study explored the ability to localize warmth sensations produced by radiant stimulation of the forearm. The subject’s task was to state on which side of a tactile reference line warmth was perceived. Percentage correct improved with increasing intensity of the radiation, as well as with increasing distance from the reference line. There appears to be an inverse relation between the ability to make spatial judgments and the degree of spatial summation. At low levels of stimulation, intensity and area both contribute heavily to the magnitude of a warmth sensation and spatial localization is poor; but with increasing level, area contributes less and less to sensation and localization is better.  相似文献   
119.
After observing the sequential flashing of two lights that produced either the perception of apparent movement or the perception of the succession of two stationary lights, the presentation of the lights in the opposite direction produced the perception of a more rapid apparent movement or of a more rapid succession of the light flashes. These aftereffects suggest the presence of neural structures for the discrimination of sequential changes in spatial position which are subject to adaptation and respond with decreased sensitivity to the repetitive presentation of the two lights in a given spatial direction. The results are interpreted to support the hypothesis that the perception of apparent movement involves the excitation of specific neural mechanisms selectively responsive to sequential changes in stimulus position. An alternative hypothesis is that the perception of apparent movement involves an inference based on the separate registrations of the position of a stimulus at one point in time and the position of that stimulus at an earlier point in time.  相似文献   
120.
The apparent heaviness of a set of 40 cylindrical objects was scaled by the method of magnitude estimation. The objects varied in weight, volume. and density. There were three main conclusions: (1) For any constant volume, heaviness grows as a power function of weight; the larger the volume. the larger the exponent of the power function. The family of such power functions converge at a common point in the vicinity of the heaviest weight that can be lifted. (2) For any constant density (i:e., weight proportional to volume), heaviness does not grow as a power function of weight. (3) For any constant weight, heaviness decreases approximately as a logarithmic function of volume; the constants of the log function depend systematically on the weight of the object. The outcome furnishes a broad quantitative picture of apparent heaviness and of the size-weight illusion (Charpentier’s illusion).  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