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   2564篇
  免费   75篇
  国内免费   4篇
  2022年   13篇
  2021年   18篇
  2020年   39篇
  2019年   43篇
  2018年   44篇
  2017年   68篇
  2016年   62篇
  2015年   46篇
  2014年   75篇
  2013年   223篇
  2012年   95篇
  2011年   94篇
  2010年   71篇
  2009年   56篇
  2008年   96篇
  2007年   104篇
  2006年   106篇
  2005年   96篇
  2004年   110篇
  2003年   95篇
  2002年   72篇
  2001年   45篇
  2000年   49篇
  1999年   57篇
  1998年   49篇
  1997年   33篇
  1996年   27篇
  1995年   29篇
  1994年   31篇
  1993年   31篇
  1992年   38篇
  1991年   23篇
  1990年   27篇
  1989年   19篇
  1988年   30篇
  1987年   28篇
  1986年   29篇
  1985年   38篇
  1984年   46篇
  1983年   37篇
  1982年   41篇
  1981年   45篇
  1980年   28篇
  1979年   37篇
  1978年   31篇
  1977年   22篇
  1976年   27篇
  1975年   17篇
  1974年   23篇
  1973年   20篇
排序方式: 共有2643条查询结果,搜索用时 15 毫秒
91.
Subjects participated in a Sperling task. The independent variables included delay of report cue, dark background field vs. a light background field intense enough to nearly saturate the rod system (duration of rod icon), and whether or not subjects were required to retain a list of letters or words (memory load) while performing in the Sperling task. Partial report superiority is normally taken as an indication of iconic memory. However, the main result was that memory load, which presumably does not affect the duration of the icon, increased partial report superiority. The effect of luminance of the background field was to reduce the partial report superiority. The results show that the existence of a partial report superiority and/or a decaying partial report curve does not necessarily imply the existence of an icon or visual storage.  相似文献   
92.
The effects of inconsistency between the verbal and nonverbal components of a message were investigated. Subjects were 72 females who rated the attitudes of encoding confederates who communicated either consistent or inconsistent messages. Verbal and nonverbal components were varied as either positive or negative and each of the four possible combinations served as an experimental condition. The nonverbal cues of amount of eye contact, postural orientation, forward–backward lean, and head nodding were found to influence the judgment of the total message. Verbal and nonverbal components were found to have interactive rather than additive effects. Inconsistent nonverbal cues had a stronger effect when accompanying a positive verbal message than when accompanying a negative verbal component. The effects of decoders' levels of cognitive complexity and tolerance of ambiguity were also assessed. Evidence suggests that both complexity and ambiguity tolerance have effects on the utilization of inconsistent nonverbal cues. Low complexity/low tolerance subjects were less influenced by nonverbal cues in the positive verbal–negative nonverbal condition. These subjects were also found to differentiate less between supplied rating dimensions than other groups.  相似文献   
93.
One-trial conditioned suppression: effects of instructions on extinction   总被引:1,自引:0,他引:1  
Two experimental groups of undergraduate volunteers received a single Pavlovian conditioning trial consisting of a paired presentation of a tone conditioned stimulus (CS) and a shock unconditioned stimulus (UCS). Control groups received either the CS alone or the UCS alone. Subjects from one experimental group were subsequently instructed that they would not receive further shocks, while the other experimental group received no such instructions. The CS alone was then presented once to all four groups while subjects were engaged in a button-pressing task maintained by slide reinforcement. During the latter phase, rate of button-pressing was measured. Classically conditioned suppression of button-pressing was obtained in the noninstructed experimental group but not in the instructed group. The results demonstrate that suppression can be a sensitive index of Pavlovian conditioning in humans but question the use of conditioned suppression as an adequate experimental analog of clinically observed anxiety-motivated behavior.  相似文献   
94.
Children chose between toys freely and with various restrictive contingencies. Sometimes play with a preferred toy was contingent on play with a nonpreferred toy. Sometimes play with a nonpreferred toy was contingent on play with a preferred toy. Another toy (free toy) was always available during contingency sessions. Because toy playing occupied the entire session the response system was closed. When one response increased in duration others had to decrease. An analysis of closed-system responding revealed that the restrictions of the closed system together with the restrictions imposed by the contingencies forced subjects to alter the proportion of time devoted to the three responses. A geometrical model representing the closed system and an analytical method based on distance are presented to describe the data.  相似文献   
95.
96.
Stage theories and empirical studies have concentrated on a few periods of childhood (e.g., age 5 to 7 years) as important times of transition. On the basis of ethnographic suggestions that the age period 8 to 10 years also involves interesting changes, the authors carried out a search of published empirical studies for findings of transitions in capabilities at 8 to 10 years. An annotated bibliography is provided summarizing the studies found in a 5-year period in three journals. The authors discuss possibilities for characterizing the transition at age 8 to 10, as well as how such a transition meshes with the concept of stage.  相似文献   
97.
A potential cause for children's failure to transfer learning strategies was explored in the present study. A self-monitoring process was suggested to be essential for evaluating one's own level of performance and the effectiveness of various mnemonic strategies. Matched on free recall scores in this study's first sort-and-recall phase, first, third, and fifth graders (ages 7, 9, and 11 years, respectively) were assigned to one of three treatment groups or a control group. During Phase II, the treatment groups received instruction in sorting pictures according to semantic similarities in preparation for future recall. In addition, Groups 3 and 4 later received feedback indicating their Phase II improvement in performance. A cause-and-effect relationship between strategy use and enhanced recall was further suggested to Group 4. Among third graders, only those provided with feedback and strategy instruction continued to rely upon the input organization strategy when faced with transfer tasks in Phase III. Both enhanced recall and improved sorting styles were observed for these subjects in Phase III. Some first graders also showed improved sorting styles and improved recall following feedback, while fifth graders showed enhanced recall even without experimenter-provided feedback. Subject's responses to a metamemory interview provided additional support for the hypothesis that the self-monitoring of memory performance is more likely to be part of fifth graders' (than first graders') memory abilities.  相似文献   
98.
This study examined the relationship between feminist orientation and job-seeking behavior in dual-career couples. Initial and final job-seeking decision rules were assessed, as well as choices to simulated incidents about joint job seeking. Feminist orientation was more pronounced in influencing simulated than actual job-seeking behavior. As employment possibilities in the simulations became increasingly constrained, the relationship between feminism and non-traditional behavior attenuated first among men, then among both sexes. In terms of actual behavior, feminist orientation in men, but not in women, was significantly related to the type of job-seeking strategy initially chosen. However, there was no significant relationship between feminist orientation and final job decision for either sex, probably because of situational constraints affecting the final decision.  相似文献   
99.
Renal dialysis is a life saving, chronic medical procedure for those patients whose kidneys no longer function. However, the psychological reactions to this procedure, which necessitates a state of passivity for several hours, often overshadow the medical implications, and, in some instances, are decisive in terms of the patient's adjustment to treatment. Frequently, patients are unable to utilize individual psychotherapy to its maximum because of their need to perceive their illness as only medical. Group therapy however provides a less threatening psychological milieu and tends to give rise to peer support and mutual interaction.Barbara Halin Willinger, M.S.W., A.C.S.W., was the social work supervisor of the Renal Dialysis Unit at Metropolitan Hospital at the writing of this paper. She is a private psychotherapist and is affiliated with a mental health clinic where she also practices individual and group psychotherapy.The author wishes to thank Martin Saltzman, M.D. and Haley Glazer, M.S.W. for their suggestions.  相似文献   
100.
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