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   1141篇
  免费   88篇
  1229篇
  2024年   5篇
  2023年   13篇
  2022年   16篇
  2021年   25篇
  2020年   38篇
  2019年   52篇
  2018年   74篇
  2017年   81篇
  2016年   67篇
  2015年   41篇
  2014年   53篇
  2013年   159篇
  2012年   62篇
  2011年   69篇
  2010年   37篇
  2009年   34篇
  2008年   46篇
  2007年   52篇
  2006年   46篇
  2005年   39篇
  2004年   29篇
  2003年   9篇
  2002年   31篇
  2001年   7篇
  2000年   9篇
  1999年   6篇
  1998年   5篇
  1997年   8篇
  1995年   7篇
  1994年   4篇
  1993年   4篇
  1990年   6篇
  1989年   4篇
  1988年   10篇
  1987年   4篇
  1986年   3篇
  1985年   9篇
  1984年   2篇
  1983年   6篇
  1982年   7篇
  1981年   4篇
  1979年   5篇
  1978年   5篇
  1977年   3篇
  1976年   3篇
  1975年   4篇
  1974年   4篇
  1973年   3篇
  1971年   2篇
  1969年   2篇
排序方式: 共有1229条查询结果,搜索用时 15 毫秒
1.
2.
A questionnaire measuring respondents' beliefs about the attitudes regarding female achievement held by their parents was distributed to 326 women attending a state university. Women who report frequent bingeing are more likely than other women to report that (1) their parents believed a woman's place is in the home (2) their mothers were unhappy with their own careers, (3) their fathers thought the respondents' mothers were not intelligent, and (4) their fathers treated a male as the most intelligent sibling in the family. Reports of fathers' attitudes regarding mothers' intelligence and the proper role for women are related to respondents' self-reports of purging, but only among those women who are much more concerned with academic achievement than with household skills.  相似文献   
3.
4.
Locational representation in imagery: The third dimension   总被引:1,自引:0,他引:1  
Six experiments were conducted to test the relative processing characteristics of picture-plane and three-dimensional imagery as indexed by tasks that required subjects to keep track of successive locations in multiunit visual displays. Subjects were shown symmetrical displays either drawn on cardboard or constructed with three-dimensional blocks. They then were required to imagine these matrices and follow pathways through a series of adjacent squares (blocks) within the matrices. The pathways were described by a series of verbal terms that indicated the direction of the next square (block) in the pathway. Subjects experienced difficulty in performing the task with picture-plane displays composed of as few as 16 squares (4×4), but they rarely made errors with a three-dimensional matrix of 27 blocks (3×3×3). Performance with the three-dimensional task dropped dramatically when the matrix size was increased to 4×4×4. The results replicated previous findings that the image processing capacity for location in two-dimensional imagery is about three units in each direction, and they indicate that adding the depth dimension increases the capacity for representation of spatial location in imagery.  相似文献   
5.
Sixteen German-English bilinguals were studied in a sleep laboratory for four nonconsecutive nights each. Half were native English speakers living in Zürich, and half native German speakers living in Atlanta. Presleep thought samples were solicited each evening and REM dream reports each night; subjects judged the waking appropriateness of their imagined speech and language phenomena, and also identified waking sources of their dream imagery, the following mornings. Incidences of dreaming and of speech therein generally were similar to those of monolinguals. Whether sessions were conducted in German (two nights) or English (two nights) did directly influence language selection in subjects' dreams. Judged appropriateness of language selection to imagined events was very high for thought samples, and high for REM dreams. Sources for thought samples were generally consonant with the language dominant at study site; for REM dreams this relationship was considerably weaker. Judged waking appropriateness to imagined situations was more strongly related to language selection than was the language reference of the supposed sources of those situations.  相似文献   
6.
A multi-stage social dilemma was used to explore the notion that focusing on part rather than all of a complex problem would affect self-efficacy and action. In two experiments subjects considered a multi-stage game asking them to invest an initial sum of money in hopes of earning a larger bonus to be paid if provision points were met at all stages (a “stage-conjunctive” task). Results indicated that under most conditions considered, presentation of the whole problem encouraged cooperation. The opposite pattern occurred when group members were asked to complete very demanding stages first. We suggest that these results depend strongly on the stage-conjunctive nature of our task.  相似文献   
7.
Effects of alcohol and extended practice on divided-attention performance   总被引:3,自引:0,他引:3  
The effects of alcohol and extended practice on divided attention were investigated using a visual tracking task and an auditory detection task. Subjects performed the tasks with and without alcohol, under single-task (S) and dual-task (D) conditions, both before and after they had received extended practice under single-task conditions without alcohol. Tracking accuracy improved with practice and was impaired under divided-attention conditions but was not affected by alcohol. Speed of detection was impaired by alcohol, improved by practice, and impaired by divided attention. Extended practice did not reduce the influence of alcohol. The effects of both alcohol and practice on speed of detection were significantly greater under dual-task conditions than under single-task conditions. Analysis of detection-task reaction times in terms of relative divided-attention costs, (D-S)/S, showed no effect of alcohol, but a highly significant reduction in costs with extended practice. It is concluded that (1) alcohol and practice can have quantitatively, but not qualitatively, similar effects on speeded performance, and (2) the effect of alcohol is not influenced by the attentional requirements of the task.  相似文献   
8.
In 1949, the neurologist Juhn Wada reported the first use of a new procedure for determining the localization of speech and language in neurological patients: examination of the effects on speech and language after injecting a barbiturate, sodium amytal, into the internal carotid artery of each hemisphere in succession. By the 1960s, Wada'sIntracarotid Amobarbital Procedure,orIAP,had become the method of choice for identifying the speech-dominant side in one kind of neurological patient, persons with epilepsy who are candidates for surgical resection, and it remains so today. In 1941, however, an American neurosurgeon, W. James Gardner, reported his use of a different anesthetization procedure for speech localization in neurological patients. Instead of injecting sodium amytal through the blood supply, as in the IAP, Gardner injected procaine hydrochloride directly into cortical tissue. In this paper, we provide a brief biography of Gardner. We then discuss his method of cortical anesthetization, the theoretical and empirical background guiding his use of this method and his choice of patients, and, finally, the fate of Gardner's method within the scientific community.  相似文献   
9.
Abstract— Fourteen-year-old adolescents' behavior on a spatial-visual reasoning task was associated with self-report of their mothers' alcohol consumption during pregnancy, IS years earlier The task was arranged so that it was possible to evaluate the examinees' tendency to respond rapidly and less accurately, or slowly and more accurately The greater the mother's reported drinking, the faster and less accurately the adolescent responded The decrement in visual-spatial reasoning related to alcohol appears to be linked to a tendency toward impulsive responding  相似文献   
10.
Subjects can name color words faster than they can name color patches. To account for that effect, a generic model of naming is described which assumes that words access the mental lexicon directly, whereas color patches do so only indirectly via an initial imaginal or semantic representation. However, Lund (1927) reported that the naming advantage for words disappeared when all the items to be named on a page were the same (i.e., they were blocked). In the present study, three experiments are reported that were designed to provide a clearer empirical definition of Lund’s blocking effect and to ascertain the extent to which it requires a modification of the generic model. The blocked lists had 50 items arranged into 10 blocks, with each block homogeneous with respect to color. The block lengths were either all a predictable length of 5 items or they varied randomly from 1 to 9 items. The data indicated the following: (1) The blocking effect occurred even when the task required a full identification of each item, and (2) the blocking effect was confined to within-block transitions. Blocking seemed to eliminate the word advantage by allowing the subject to re-use the lexical entry used for the immediately prior item, which is consistent with the generic model.  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