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   89138篇
  免费   3616篇
  国内免费   30篇
  2020年   849篇
  2019年   1077篇
  2018年   1454篇
  2017年   1499篇
  2016年   1621篇
  2015年   1180篇
  2014年   1391篇
  2013年   6464篇
  2012年   2610篇
  2011年   2748篇
  2010年   1726篇
  2009年   1667篇
  2008年   2436篇
  2007年   2429篇
  2006年   2205篇
  2005年   1989篇
  2004年   1857篇
  2003年   1749篇
  2002年   1858篇
  2001年   2799篇
  2000年   2744篇
  1999年   2068篇
  1998年   1007篇
  1997年   884篇
  1996年   880篇
  1992年   1823篇
  1991年   1703篇
  1990年   1711篇
  1989年   1548篇
  1988年   1526篇
  1987年   1457篇
  1986年   1552篇
  1985年   1619篇
  1984年   1335篇
  1983年   1222篇
  1982年   857篇
  1981年   837篇
  1979年   1427篇
  1978年   1000篇
  1977年   860篇
  1975年   1204篇
  1974年   1340篇
  1973年   1427篇
  1972年   1228篇
  1971年   1148篇
  1970年   1071篇
  1969年   1087篇
  1968年   1424篇
  1967年   1274篇
  1966年   1114篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
971.
Cognitive bias, i.e. overestimates of subjective probability and cost of catastrophic events, and irrational belief were explored as predictors of avoidance. Three groups-anxiety disordered clients, a mixed group of clinic outpatients, and normals--were administered several self-report inventories. Multiple regression analyses were used to investigate a modified version of the Agoraphobic Cognitions Questionnaire, the Belief Scale, and the Body Sensations Questionnaire as predictors of avoidance, as measured by the Mobility Inventory. It was hypothesized that frequency x probability x cost of catastrophic cognitions (and the occurrence of the events they represent) would be a better predictor of avoidance than frequency alone. It was also hypothesized that irrational thinking would be a significant predictor of avoidance. The results generally supported the hypotheses, with subjective probability emerging as a particularly potent predictor of avoidance. Theoretical and clinical implications are discussed.  相似文献   
972.
In this study the Revised Fear Survey Schedule for Children was administered to 138 hearing-impaired and 134 normally hearing youths. Although both groups expressed fear of potentially dangerous stimuli, significant differences in responding were evident towards other kinds of stimuli. Whereas hearing children were more fearful of failure and criticism, the hearing-impaired children were more afraid of the unknown, injury and small animals. Girls reported significantly greater levels of fear than boys thus confirming a well established research finding. Further, significant interactions were found between hearing status and gender. In contrast to previous findings, age was not related to self-reports of fear.  相似文献   
973.
Restrained eaters are rapidly habituating sensation seekers   总被引:1,自引:0,他引:1  
Several authors have pointed to similarities between eating disorders and addictive behaviors. In earlier studies, addicts were found to score high on the Sensation Seeking Scale (SSS) and to habituate rapidly to neutral stimuli. In this study, we found experimental support for an addiction model of eating disorders: restrained eaters also scored significantly higher on the Sensation Seeking Scale and also habituated significantly quicker to a series of neutral stimuli than unrestrained eaters. No clear evidence was found for the hypothesis that restrained eaters score lower on measurements of anxiety. It is hypothesized that rapid habituation promotes sensation seeking, which may be manifested in excessive consumption of either drugs or food. Restraint may be a strategy to prevent negative consequences of sensation seeking and excessive consumption. The model is related to earlier experimental findings.  相似文献   
974.
The purpose of this study was to compare our structured research-based version of marital therapy from a social learning perspective with a clinically flexible version of the same treatment where treatment plans were individually-based and there was no specific number of treatment sessions. Thirty distressed married couples were randomly assigned to one of these two treatments. Assessment of outcome was based on global marital satisfaction, spouse reports of functioning in specific areas, and direct observational measures of communication. At posttest there were no differences in efficacy between structured and flexible treatments, although both treatments led to significant improvements. At a 6-month follow-up couples treated with the structured format were more likely to have deteriorated and flexibly treated couples were more likely to have maintained their treatment gains.  相似文献   
975.
The purpose of the present study was to examine several competing hypotheses which have been utilized to explain the negative relationship between interparental conflict and child/adolescent problems. These mechanisms of operation have included modelling, genetic transmission, disrupted parenting, the role of perceptual/appraisal processes of the conflict, and an inhibition hypothesis. One hundred and forty-two young adolescents and their mothers served as subjects. Eighty were from intact families and 62 from recently divorced families. Data were collected from the perspective of the adolescent, mother, behavioral observer, and social studies teacher. The results indicated that intact and divorced samples had to be considered separately as different pathways contributed to adolescent behavior problems in the two samples. For externalizing problems, a direct path between interparental conflict and problem behavior existed for the divorced sample whereas an indirect path through the adolescent's perceptions of the conflict existed for the intact sample. The different context in which the interparental conflict occurred for the two samples was offered as an explanation of this difference. For internalizing problems a significant direct path existed between conflict and problem behavior for both samples; however, the indirect paths through the adolescent's perceptions and through poor parenting skills contributed only for the divorced sample. The results suggest that various mechanisms appear to operate in influencing how interparental conflict influences behavior problems of young adolescents. Both the type of problem examined and the marital status of the parents appear important in determining the relative impact of the mechanisms. Implications for the behavior therapist are noted.  相似文献   
976.
Thirty patients with phobia for blood, wounds and injuries were treated individually with applied tension, applied relaxation, or the combination of these two methods for 5, 9 and 10 sessions, respectively. They were assessed on self-report, behavioral and physiological measures before and after treatment, and at a 6-month follow-up. All groups improved significantly on 11/12 measures, and the improvements were maintained at follow-up. Applying stringent criteria, 73% of the patients were clinically improved at the end of treatment and 77% were so at follow-up. Despite a failure to find between-group differences, on many measures there was a trend favoring applied tension. Since this method is as effective as the other treatments in only half the time, applied tension should clinically be the treatment of choice for blood phobia.  相似文献   
977.
R Held 《Cognition》1989,33(1-2):139-154
A classic view of the relation between sensorineural activity and perception has assumed that the former is somehow transformed into the latter at some locus in the brain. This notion conflicts with the modern view that the activity of the nervous system is restricted to transmitting and processing information. It is suggested that the conflict may be resolved by considering perception as reflective activity rather than passive reception. This cognitive process entails information about the perceiving self and the general context and not merely the stimulus input. Some aspects of perception can be related to neuronal mechanisms and even to neuronal activity at specific loci. How is this done? By identifying the characteristics of the perceptual process and finding a necessary and sufficient neuronal mechanism that receives information about the stimulus input and can perform the implied computation. Examples are taken from the study of visual development in human infants.  相似文献   
978.
Believability and syllogistic reasoning   总被引:4,自引:0,他引:4  
In this paper we investigate the locus of believability effects in syllogistic reasoning. We identify three points in the reasoning process at which such effects could occur: the initial interpretation of premises, the examination of alternative representations of them (in all of which any valid conclusion must be true), and the "filtering" of putative conclusions. The effect of beliefs at the first of these loci is well established. In this paper we report three experiments that examine whether beliefs have an effect at the other two loci. In experiments 1 and 2 subjects drew their own conclusions from syllogisms that suggested believable or unbelievable ones. In the third experiment they evaluated conclusions that were presented to them. The data show that beliefs both affect the examination of alternative models and act as a filter on putative conclusions. We conclude by showing how some types of problem and some problem contents make the existence of alternative models more obvious than others.  相似文献   
979.
R Kolinsky 《Cognition》1989,33(3):243-284
Under conditions that do not allow focused attention, reports of illusory conjunctions (i.e. errors that wrongly recombine the features of different objects) constitute evidence of the separate registering of features at an early processing level. The occurrence of illusory conjunctions was used to determine whether there is preattentive analysis of component dimensions (colour and form) and of parts of shapes (triangles and arrows) in young children aged 5 to 8 years. Evidence of preattentive analysis was found, even for the youngest children, for colour and form but not for parts of shapes. Although developmental effects hardly reached significance, inspection of abilities assumed to affect the illusory conjunctions phenomenon suggests that at the preattentive stage children can integrate spatially separate segments but lack the capacity to fully analyse connected segments.  相似文献   
980.
Issues related to infant intersensory functioning are reviewed. The argument is offered that limitations of sensory inputs during early stages of development are necessary and provide structure and organization which determine behavioural characteristics at later stages. It is also suggested that infant organisms respond to the intensity of stimulation rather than organizational characteristics and that this is responsible for the form of sensory equivalence apparent during early development. A scheme for the investigation of sources of intersensory organization is presented which involves a prospective analysis of how consideration of the times of onset of sensory functions helps us to understand intra- and intersensory development. The advantages of this experimental approach are outlined.  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