全文获取类型
收费全文 | 87188篇 |
免费 | 4157篇 |
国内免费 | 79篇 |
出版年
2020年 | 975篇 |
2019年 | 1210篇 |
2018年 | 1710篇 |
2017年 | 1720篇 |
2016年 | 1811篇 |
2015年 | 1261篇 |
2014年 | 1557篇 |
2013年 | 7040篇 |
2012年 | 2706篇 |
2011年 | 2887篇 |
2010年 | 1852篇 |
2009年 | 2002篇 |
2008年 | 2539篇 |
2007年 | 2530篇 |
2006年 | 2270篇 |
2005年 | 1991篇 |
2004年 | 1946篇 |
2003年 | 1874篇 |
2002年 | 1830篇 |
2001年 | 2808篇 |
2000年 | 2643篇 |
1999年 | 2056篇 |
1998年 | 1044篇 |
1997年 | 928篇 |
1996年 | 886篇 |
1995年 | 882篇 |
1992年 | 1701篇 |
1991年 | 1608篇 |
1990年 | 1615篇 |
1989年 | 1491篇 |
1988年 | 1407篇 |
1987年 | 1349篇 |
1986年 | 1319篇 |
1985年 | 1474篇 |
1984年 | 1233篇 |
1983年 | 1039篇 |
1982年 | 873篇 |
1979年 | 1252篇 |
1978年 | 952篇 |
1977年 | 890篇 |
1976年 | 854篇 |
1975年 | 1072篇 |
1974年 | 1186篇 |
1973年 | 1251篇 |
1972年 | 1058篇 |
1971年 | 880篇 |
1969年 | 865篇 |
1968年 | 1047篇 |
1967年 | 925篇 |
1966年 | 959篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
881.
882.
883.
S Kreitler E Zigler H Kreitler 《Genetic, social, and general psychology monographs》1989,115(4):505-533
This study focused on the relations between performance on a three-choice probability-learning task and conceptions of probability as outlined by Piaget concerning mixture, normal distribution, random selection, odds estimation, and permutations. The probability-learning task and four Piagetian tasks were administered randomly to 100 male and 100 female, middle SES, average IQ children in three age groups (5 to 6, 8 to 9, and 11 to 12 years old) from different schools. Half the children were from Middle Eastern backgrounds, and half were from European or American backgrounds. As predicted, developmental level of probability thinking was related to performance on the probability-learning task. The more advanced the child's probability thinking, the higher his or her level of maximization and hypothesis formulation and testing and the lower his or her level of systematically patterned responses. The results suggest that the probability-learning and Piagetian tasks assess similar cognitive skills and that performance on the probability-learning task reflects a variety of probability concepts. 相似文献
884.
Dental phobias and anxieties: evidence for conditioning processes in the acquisition and modulation of a learned fear 总被引:1,自引:0,他引:1
G C Davey 《Behaviour research and therapy》1989,27(1):51-58
The present study investigated some of the factors which differentiate individuals with dental anxieties and phobias from those without such fears. In particular, two questions were addressed: (i) What differentiates subjects who have never been anxious about dental treatment from subjects who at some time have been anxious? and (ii) What factors lead to subjects changing their attitudes either from anxious to relaxed or from relaxed to anxious? The results suggest that the factors which influence the acquisition and modulation of dental anxieties are consistent with the associative and representational processes portrayed in contemporary models of human conditioning. Subjects who reported never having had anxieties about dental treatment were less likely to have had a painful dental treatment than subjects who did report an anxiety. Subjects who did report a painful dental experience but did not acquire anxiety reported a history of dental treatment favourable to the operation of latent inhibition. Subjects who reported that they were good at enduring pain were more likely to report a longer interval between their very first dental treatment and their first painful dental treatment. Under some conditions in which latent inhibition should have precluded the acquisition of a dental fear, an anxiety appeared to be acquired because a very painful experience had attenuated the latent inhibition process. Subjects whose dental anxiety did not remit reported significantly more painful and traumatic dental experiences than subjects whose anxiety did remit. 相似文献
885.
A controlled comparative investigation of psychological treatments for chronic sleep-onset insomnia 总被引:4,自引:1,他引:3
A sample of physician-referred chronic insomniacs was randomly allocated to either progressive relaxation, stimulus control, paradoxical intention, placebo or no treatment conditions. Treatment process and outcome were investigated in terms of mean and standard deviation (night to night variability) measures of sleep pattern and sleep quality. Only active treatments were associated with significant improvement, but the nature of treatment gains varied. In particular, stimulus control improved sleep pattern, whereas relaxation affected perception of sleep quality. All improvements were maintained at 17 month follow-up. Results are discussed with reference to previous research and guidelines are given for clinical practice. 相似文献
886.
887.
This study profiles the characteristics of adolescent suicide attempters and the treatment they received in a pediatric emergency room (ER). A retrospective chart review of 4,072 adolescents seen in the ER at a children's hospital (CH) from July 1984 to June 1985 was undertaken. Twenty-seven adolescents who had deliberately injured themselves were identified. The average age was 14 years 7 months (range 11-19 years). Fifty-two percent of the patients were white and 78% were female. Ingestion was the most common method (78%), followed by attempted hanging (11%), and wrist laceration (7%). After evaluation by a pediatrician in the ER, 30% of the patients were treated and released, 11% were transferred directly to a psychiatric hospital, and 59% were admitted to the CH, with an average hospital stay of 1.88 days. Once hospitalized, consultations from psychiatry (81%), social service (50%), psychology (19%), and neurology (6%) were obtained. At the time of discharge from either the ER or CH, the patients had a variety of plans for ongoing care, with 52% being referred to outpatient counseling, 37% being transferred to a psychiatric hospital, and 11% having no documented plan for ongoing care. These results demonstrate that the evaluation of suicidal adolescents cared for in a pediatric facility may be episodic and suggest the need for a comprehensive program to approach the problem. 相似文献
888.
The purpose of this study was to examine the relationship between adolescent pubertal status, the affective quality of family relations, and the early adolescent's exploration of a sense of ego identity. Fifty-one intact families with adolescents in the seventh grade agreed to participate. Each family member completed a battery of questionnaires designed to assess familial adaptation to pubertal growth and identity exploration. The results reveal that the affective quality of parent-adolescent relationships and the pubertal status of the adolescent appear to influence the adolescent's exploration of ego identity. The need to establish the functional significance of familial adaptation to adolescent pubertal growth for identity development is discussed. 相似文献
889.
S J Coen 《Journal of the American Psychoanalytic Association》1989,37(4):943-964
A type of patient is described, who has marked intolerance of taking responsibility for his internal conflicts so as to confront them, analyze them, and change. Defensive repetition in pathological object relations aims to avoid what is wrong within and to engage another so as to protect oneself. Genetic, dynamic, and technical aspects of such defensive, dependent relating are considered. Responsibility for oneself and for what is within oneself is held to be terrifying--more than anyone can bear on his own. How destructiveness has become, and remains, so terrifying is discussed. 相似文献
890.
The purpose of this work is to explore the phenomenon of negativism and the analyst's response to it during the course of analytic work with a patient in whom negativism is a central behavioral pattern. Melville's short story, "Bartleby the Scrivener," describing in telling detail the response of a sympathetic lawyer to profound and pervasive negativism in his legal scribe, is discussed as a literary analogy to the analyst-analysand dyad. Aspects of the concept of negativism within psychoanalysis are discussed. The potential usefulness of understanding certain unexpected countertransference responses to pervasive negativism is explored, as this is a relatively neglected area of psychoanalytic technique. A case is presented describing the analysis of a patient whose character, like Bartleby's, is a mixture of profound negativism along with schizoid, obsessional, and masochistic elements. 相似文献