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   133篇
  免费   1篇
  134篇
  2024年   3篇
  2020年   4篇
  2017年   4篇
  2016年   3篇
  2015年   5篇
  2014年   2篇
  2013年   12篇
  2011年   2篇
  2010年   3篇
  2009年   2篇
  2007年   10篇
  2006年   4篇
  2004年   4篇
  2000年   2篇
  1999年   2篇
  1994年   2篇
  1993年   3篇
  1992年   1篇
  1991年   4篇
  1989年   3篇
  1988年   2篇
  1987年   1篇
  1986年   1篇
  1985年   2篇
  1984年   2篇
  1983年   3篇
  1982年   2篇
  1981年   1篇
  1978年   1篇
  1976年   1篇
  1975年   1篇
  1974年   4篇
  1972年   1篇
  1971年   2篇
  1970年   1篇
  1969年   1篇
  1967年   2篇
  1965年   3篇
  1964年   1篇
  1963年   1篇
  1962年   3篇
  1960年   2篇
  1959年   3篇
  1958年   1篇
  1957年   1篇
  1956年   1篇
  1955年   2篇
  1953年   1篇
  1952年   2篇
  1944年   1篇
排序方式: 共有134条查询结果,搜索用时 15 毫秒
101.
The use of an investigator-based interview (Autism Diagnostic Interview—Revised; ADI-R) in the diagnosis of 51 autistic and 43 nonautistic mentally handicapped preschool children of equivalent mental and chronological age is described. Significant differences occurred between the groups on every diagnostic subdomain from the DSM-IV/ICD-10 draft criteria, except specific aspects of stereotyped language, still relatively rare in these young children. All but one of the 51 children judged to be autistic by clinical observation and only two of the 30 nonautistic mentally handicapped children with mental ages of 18 months or higher met criteria for autism on an algorithm to DSM-IV/ICD-10 draft criteria. However, discrimination using domain totals between autistic and the 13 nonautistic, nonverbal mentally handicapped children with mental ages under 18 months was poor. Quality of social overtures to adults and peers, play, and unusual sensory behaviors and mannerisms continued to differentiate these two groups. The relevance of these findings to the diagnosis of autism in preschool children is discussed.  相似文献   
102.
    
Previous studies suggest that individuals with Williams syndrome (WS), a rare genetically based neurodevelopmental disorder, show specific weaknesses in visual attention and response inhibition within the visuospatial domain. Here we examine the extent to which impairments in attentional control extend to the visuomotor domain using a well‐validated measure of choice stepping reaction time (CSRT) in individuals with WS. We examined the interaction between executive control and visually guided stepping using a verbal fluency dual‐task or Go/NoGo paradigm during CSRT performance. Relationships between dual‐task and inhibitory stepping and behavioural inattention and hyperactivity were also examined. Our results showed clear dual‐task costs in stepping response times when performing a concurrent cognitive task in the WS group when compared to spatial and verbal ability matched typically developing controls. Although no group differences in stepping accuracy were observed between the WS and typically developing control groups, the WS group showed progressive slowing and more variable response times across the duration of the Go/NoGo task. These results suggest dysfunction in circuits involved in top‐down attentional control processes in WS. These findings provide novel evidence that core executive control deficits in WS extend to the visuomotor domain, and impact on ADHD‐related inattentive symptoms.  相似文献   
103.
    
  相似文献   
104.
Recognized leaders of African-American communities were surveyed with 24 items developed by the investigators to aid in the identification of pertinent characteristics common to successful and positive role models for young African-American men.  相似文献   
105.
106.
Identification of self through olfaction   总被引:1,自引:0,他引:1  
To study olfactory communication in humans, 100 undergraduates ranging from age 18 to 45 yr. wore freshly washed, identical T-shirts continuously for 24 hr. During this time, the participants did not bathe or shower or apply any scent producing substance to their bodies, i.e., deodorants, perfumes. Upon retrieval, each shirt was placed in an identical brown bag. In groups of 10, each participant attempted to identify the T-shirt he had worn the previous 24 hr. The task was administered separately for each individual so that no participants knew the choice by a previous colleague. Analysis shows that the participants were able to identify correctly their own shirts on the first try three-quarters of the time. Furthermore, sex, age, smoking habit of the participant, and menstrual cycle phase in the women were factors in successful outcomes.  相似文献   
107.
    
Previous research has shown that merely thinking about an attitude object can make both positive and negative attitudes more extreme. The present research explored whether a specific type of thought—extrapolating from known to unknown attributes—might make attitudes and behavioural intentions more extreme than reviewing known attributes. In three experiments, extrapolating from a social group's ‘known’ personality traits made positive and negative attitudes and behavioural intentions more extreme than reviewing those traits. This pattern of results occurred whether participants self-generated extrapolations (Experiment 1) or rated the likelihood of frequently extrapolated traits (Experiment 2). Attitudes were also more extreme after extrapolating traits high versus low in cognitive relevance to known traits, regardless of trait positivity/negativity (Experiment 3). In all three experiments, the effect of biased trait extrapolation on attitude extremity was mediated by more extreme associations with the extrapolated group. The current findings are consistent with attitude theories that emphasize cognitive processes.  相似文献   
108.
A significant proportion of infants receiving treatment in programs designed to prevent abuse and psychosocial disorders may be removed from the custody of their parents by social service agencies. In an effort to help distinguish those cases at risk for termination of parental rights (TPR), seven such cases were analyzed and compared to seven similar cases where TPR did not occur. All 14 cases were referred because of abuse/neglect, and were at risk for continued abuse. Results showed that TPR was most likely in families where the parents were viewed as being unpleasant, as having a poor relationship with their child, were seen as retarded by the social service agency, and whose infants showed large gains in developmental level, especially during foster placement. These findings were interpreted as indicating a mixture of actual lack of progress in treatment and a negative attitudinal set about these clients.  相似文献   
109.
The likelihood-ratio significance test is derived for the hypothesis that after correction for attenuation two variables have a perfect correlation in the population from which the sample is drawn.The writer is indebted to Professor John W. Tukey for his valuable suggestions on an earlier draft.  相似文献   
110.
For the six available sets of empirical data, the discrimination (slope) parameter of the logistic item characteristic curve was found to have a significant positive correlation over items with the difficulty (location) parameter. This unpleasant situation can be eliminated by a suitably chosen transformation of the ability scale. An example of the transformation is given and some empirical results of using the transformed scale are shown.  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