全文获取类型
收费全文 | 21946篇 |
免费 | 76篇 |
出版年
2023年 | 8篇 |
2021年 | 12篇 |
2020年 | 33篇 |
2019年 | 37篇 |
2018年 | 3514篇 |
2017年 | 2847篇 |
2016年 | 2267篇 |
2015年 | 207篇 |
2014年 | 115篇 |
2013年 | 256篇 |
2012年 | 637篇 |
2011年 | 2435篇 |
2010年 | 2542篇 |
2009年 | 1518篇 |
2008年 | 1767篇 |
2007年 | 2254篇 |
2006年 | 99篇 |
2005年 | 277篇 |
2004年 | 229篇 |
2003年 | 173篇 |
2002年 | 109篇 |
2001年 | 57篇 |
2000年 | 77篇 |
1999年 | 51篇 |
1998年 | 49篇 |
1997年 | 43篇 |
1996年 | 28篇 |
1995年 | 17篇 |
1994年 | 18篇 |
1993年 | 20篇 |
1992年 | 14篇 |
1991年 | 18篇 |
1990年 | 32篇 |
1989年 | 18篇 |
1988年 | 17篇 |
1987年 | 15篇 |
1986年 | 19篇 |
1985年 | 15篇 |
1984年 | 15篇 |
1983年 | 12篇 |
1982年 | 13篇 |
1981年 | 16篇 |
1980年 | 15篇 |
1979年 | 16篇 |
1978年 | 10篇 |
1977年 | 10篇 |
1976年 | 6篇 |
1975年 | 8篇 |
1974年 | 11篇 |
1973年 | 7篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
111.
112.
This study had two aims: to test the hypothesis that borderline personality disorder (BPD) patients hold numerous dysfunctional beliefs associated with a variety of Axis II disorders, and to construct a BPD belief scale which captures these beliefs. Beliefs were measured using the Personality Belief Questionnaire (PBQ) which is designed to assess beliefs associated with various personality disorders, although not specifically BPD. Eighty-four BPD patients and 204 patients with other personality disorders (OPD) were randomly split into two study samples. Fourteen PBQ items were found to discriminate BPD from OPD patients in both samples. These items came from the PBQ Dependent, Paranoid, Avoidant, and Histrionic scales and reflect themes of dependency, helplessness, distrust, fears of rejection/abandonment/losing emotional control, and extreme attention-seeking behavior. A BPD beliefs scale constructed from these items showed good internal consistency and diagnostic validity among the 288 study patients. The scale may be used to assist in diagnosis and cognitive therapy of BPD. 相似文献
113.
Research suggests that individuals may differ in their susceptibility to false memory in the Deese/Roediger and McDermott procedure. Prior studies of differences have focused on the effects of age, personality, personal past history of abuse, and neurological status on false memory susceptibility. This study examined whether sex might also differentially influence false memory. After listening to a series of word lists designed to elicit false recall of nonstudied associates, 50 male and 50 female college students free recalled the lists. Analysis showed no sex difference in accurate recall, false recall, or unrelated intrusions. A robust false memory effect was observed, but sex did not differentiate performance. 相似文献
114.
Sedikides C Herbst KC Hardin DP Dardis GJ 《Journal of personality and social psychology》2002,83(3):592-605
Although self-enhancement is linked to psychological benefits, it is also associated with personal and interpersonal liabilities (e.g., excessive risk taking, social exclusion). Hence, structuring social situations that prompt people to keep their self-enhancing beliefs in check can confer personal and interpersonal advantages. The authors examined whether accountability can serve this purpose. Accountability was defined as the expectation to explain, justify, and defend one's self-evaluations (grades on an essay) to another person ("audience"). Experiment 1 showed that accountability curtails self-enhancement. Experiment 2 ruled out audience concreteness and status as explanations for this effect. Experiment 3 demonstrated that accountability-induced self-enhancement reduction is due to identifiability. Experiment 4 documented that identifiability decreases self-enhancement because of evaluation expectancy and an accompanying focus on one's weaknesses. 相似文献
115.
Severe traumatic brain injury: some effects on family caregivers 总被引:1,自引:0,他引:1
This study assesses the effects of severe traumatic brain injuries on family members and functioning-a topic of interest for those working with survivors and their families. This issue is receiving increased attention as recent findings suggest that family adjustment influences outcome for brain-injured persons. The Family Environment Scale and the Profile of Mood States were completed by 25 individuals who had a family member with a severe traumatic brain injury. These scales were also completed by a comparison group of 32 individuals who had no brain-injured family member. In terms of family functioning, the findings suggest that, when a family member suffers a severe traumatic brain injury, depression may be elevated, along with a decreased ability to express feelings, decreased time and energy for social and recreational activities, and increased control in comparison to families without a brain-injured member. While this might contribute to family isolation which could last for many years, the overall finding of the present study was that caregiver families were coping adequately. 相似文献
116.
117.
In the first part of this paper we review evidence suggesting that there exists a mechanism that selects input on the basis of its similarity to the required action. This response-based input selection differs from the more established space- and object-based input selection in that it is not constrained by the structure of the input. Our evidence suggests that the two-choice Stroop effect is caused by this response-based selection mechanism. By contrast, it is known that the flanker effect is determined by the space- and object- based selection mechanisms. We explore whether the conflict resolution of the Stroop and flanker tasks is different as well by embedding these two tasks in a PRP (Psychological Refractory Period) paradigm. We show that the Stroop and the PRP effects are additive whereas the flanker and the PRP effects are underadditive, suggesting that the processes in charge of the conflict resolution in the Stroop and the flanker tasks are indeed different. We discuss possible reasons for this difference, and discuss possible ways in which the response-based mechanism can be implemented in information processing models. 相似文献
118.
Fabry disease in genetic counseling practice: recommendations of the National Society of Genetic Counselors 总被引:3,自引:0,他引:3
Bennett RL Hart KA O'Rourke E Barranger JA Johnson J MacDermot KD Pastores GM Steiner RD Thadhani R 《Journal of genetic counseling》2002,11(2):121-146
The objective of this document is to provide health care professionals with recommendations for genetic counseling and testing of individuals with a suspected or confirmed diagnosis of Fabry disease, with a family history of Fabry disease, and those identified as female carriers of Fabry disease. These recommendations are the opinions of a multicenter working group of genetic counselors, medical geneticists, and other health professionals with expertise in Fabry disease counseling, as well as an individual with Fabry disease who is a founder of a Fabry disease patient advocacy group in the United States. The recommendations are U.S. Preventive Task Force Class III, and they are based on clinical experience, a review of pertinent English-language articles, and reports of expert committees. This document reviews the genetics of Fabry disease, the indications for genetic testing and interpretation of results, psychosocial considerations, and references for professional and patient resources. These recommendations should not be construed as dictating an exclusive course of management, nor does use of such recommendations guarantee a particular outcome. The professional judgment of a healthcare provider, familiar with the facts and circumstances of a specific case, will always supersede these recommendations. 相似文献
119.
Memory for extinction of conditioned fear is long-lasting and persists following spontaneous recovery 总被引:6,自引:1,他引:5
下载免费PDF全文
![点击此处可从《Learning & memory (Cold Spring Harbor, N.Y.)》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Quirk GJ 《Learning & memory (Cold Spring Harbor, N.Y.)》2002,9(6):402-407
Conditioned fear responses to a tone paired with footshock rapidly extinguish when the tone is presented in the absence of the shock. Rather than erase conditioning, extinction is thought to involve the formation of new memory. In support of this, extinguished freezing spontaneously recovers with the passage of time. It is not known, however, how long extinction memory lasts or whether extinction interferes with consolidation of conditioning if given on the same day. To address this, we gave rats 7 trials of auditory fear conditioning followed 1 h later by 20 extinction trials, and tested for spontaneous recovery after a delay of 0, 1, 2, 4, 6, 10, or 14 d. Conditioned freezing to the tone gradually recovered with time to reach 100% by day 10. No-extinction controls indicated that the increase in freezing with time was not owing to incubation of conditioning memory. Complete spontaneous recovery indicates that extinction training given 1 h after conditioning does not interfere with the consolidation of conditioning memory. Despite complete recovery of freezing, rats showed savings in their rate of re-extinction, indicating persistence of extinction memory. These data support the idea that conditioning and extinction of fear are learned by independent systems, each able to retain a long-term memory. 相似文献
120.
Numerous previous investigators have explained species differences in spatial memory performance in terms of differences
in foraging ecology. In three experiments we attempted to extend these findings by examining the extent to which the spatial
memory performance of echidnas (or "spiny anteaters") can be understood in terms of the spatio-temporal distribution of their
prey (ants and termites). This is a species and a foraging situation that have not been examined in this way before. Echidnas
were better able to learn to avoid a previously rewarding location (to "win-shift") than to learn to return to a previously
rewarding location (to "win-stay"), at short retention intervals, but were unable to learn either of these strategies at retention
intervals of 90 min. The short retention interval results support the ecological hypothesis, but the long retention interval
results do not.
Electronic Publication 相似文献