全文获取类型
收费全文 | 1041篇 |
免费 | 54篇 |
国内免费 | 41篇 |
专业分类
1136篇 |
出版年
2023年 | 12篇 |
2022年 | 11篇 |
2021年 | 14篇 |
2020年 | 30篇 |
2019年 | 30篇 |
2018年 | 43篇 |
2017年 | 30篇 |
2016年 | 35篇 |
2015年 | 22篇 |
2014年 | 31篇 |
2013年 | 131篇 |
2012年 | 38篇 |
2011年 | 37篇 |
2010年 | 41篇 |
2009年 | 40篇 |
2008年 | 37篇 |
2007年 | 40篇 |
2006年 | 36篇 |
2005年 | 42篇 |
2004年 | 38篇 |
2003年 | 31篇 |
2002年 | 37篇 |
2001年 | 11篇 |
2000年 | 14篇 |
1999年 | 17篇 |
1998年 | 14篇 |
1997年 | 9篇 |
1996年 | 11篇 |
1994年 | 13篇 |
1993年 | 6篇 |
1992年 | 22篇 |
1991年 | 12篇 |
1990年 | 7篇 |
1989年 | 6篇 |
1988年 | 17篇 |
1987年 | 11篇 |
1985年 | 8篇 |
1984年 | 8篇 |
1983年 | 16篇 |
1982年 | 8篇 |
1981年 | 10篇 |
1980年 | 6篇 |
1979年 | 9篇 |
1978年 | 6篇 |
1977年 | 10篇 |
1976年 | 6篇 |
1975年 | 9篇 |
1974年 | 6篇 |
1971年 | 6篇 |
1968年 | 6篇 |
排序方式: 共有1136条查询结果,搜索用时 15 毫秒
991.
Allison M. Waters Louise A. Ford Vanessa E. Cobham 《Behaviour research and therapy》2009,47(8):654-662
The present study compared the efficacy of a group-based cognitive-behavioural treatment (GCBT) delivered exclusively to parents of young anxious children (between 4 and 8 years of age) with the same intervention delivered to both children and parents, relative to a Wait-list Control condition. Parents of children in the Parent Only condition (N = 25) received 10 weekly sessions of GCBT whereas children and parents in the Parent + Child condition (N = 24) each received 10 weekly sessions of GCBT. Intent-to-treat analyses indicated that both active treatment conditions were superior to the Wait-list condition (N = 11), with 55.3% of children in the Parent Only condition and 54.8% of children in the Parent + Child condition no longer meeting criteria for their principal diagnosis at post-treatment. These treatment gains were maintained in both treatment conditions at six-month and 12-month follow-up assessments. There were no significant differences between the two active conditions on other outcome measures including parental psychopathology and parenting style. However, an unexpected finding was that parenting satisfaction and to some extent parenting competence reduced significantly from pre- to post-treatment regardless of the active treatment condition. The present results suggest that GCBT delivered exclusively to parents of young anxious children may be a viable treatment alternative for improving accessibility to efficacious treatments for children with anxiety disorders and for reducing costs associated with mental health care delivery. 相似文献
992.
The Psychological Record - The present experiment examined temporal discounting across 3 different age bands: adolescents, adults, and older adults (mean ages 14, 46, and 73 years, respectively). A... 相似文献
993.
Rapid automatized naming (RAN; Denckla & Rudel, 1976) tasks are consistent predictors of fluency that also discriminate between
dyslexic and nondyslexic reading groups. The component processes of RAN that are responsible for its relationship with reading
ability remain underspecified, however. We report a study on dyslexic and nondyslexic adult groups that experimentally manipulated
RAN formats to elucidate how different components of RAN differentially influence dyslexic and nondyslexic performance. The
dyslexic group showed a pervasive deficit in rapid access of individually presented items. Additionally, they showed a significant
impairment when multiple items were presented, whereas nondyslexic readers showed marginal facilitation for this format. We
discuss the implications of these findings with respect to reading-group differences in reading fluency. 相似文献
994.
The nature of processes underlying our perception of reversible figures was examined through two experiments investigating the effects of prior exposure conditions on an observer's report of figural reversal. In experiment 1, observers were adapted over several minutes to an unambiguous version of a rotating Necker cube prior to the presentation of the standard ambiguous figure. Results indicated that adaptation produced an immediate bias to perceive the ambiguous figure in the opposite configuration (ie reverse bias) and to reduce reports of reversal over the test period. The introduction of a brief delay between the adaptation and test periods revealed that this bias is a highly transient effect and is only clearly evident when the adaptation and test figures are matched in size. In experiment 2, observers were primed with an unambiguous figure for a few seconds prior to the presentation of the standard ambiguous figure. In this case, the obtained bias strongly favored the observer's reporting the ambiguous figure to be in the same configuration as the adapting figure (ie positive bias); and neither introducing a delay period nor changing figure size had any effect. We conclude that these experiments reveal the distinct roles of transient, retinally localized neural processes as well as more stable, global processes under specifiable conditions. 相似文献
995.
Brådvik L Frank A Hulenvik P Medvedeo A Berglund M 《Suicide & life-threatening behavior》2007,37(4):475-481
Nonfatal heroin overdoses and suicide attempts are both common among heroin addicts, but there is limited knowledge about the association between them. The sample in the present study consisted of 149 regular heroin users in Malmö, Sweden. Out of these 98 had taken an unintentional heroin overdose at some time and 51 had made at least one attempt to commit suicide (but not using heroin). Suicide attempts were significantly more common among those who had taken unintentional overdoses as compared with those who had never taken any overdose (p < 0.01). The more overdoses, the greater the risk of suicide attempt. 相似文献
996.
This study examined the judgments and reasoning of adolescents (ages 12–19 years) from three sites in urban and rural China (n = 270) and in an urban Canadian comparison sample (n = 72), about the fairness of various forms of democratic and non-democratic government. Adolescents from both China and Canada preferred democratic forms of government, such as representative or direct democracy, to non-democratic systems, such as a meritocracy and an oligarchy of the wealthy, at all ages. Adolescents appealed to fundamental democratic principles, such as representation, voice, and majority rule, to justify their judgments. Similar age-related patterns in judgments and reasoning were found across cultures and across diverse settings within China. 相似文献
997.
新生儿包皮环切术通常被认为能减少尿路感染、成人阴茎癌甚至艾滋病毒感染危险,许多国家和地区常规为新生儿行包皮环切术。但近年来许多学者从医学和伦理等角度对此提出疑问,主张慎重对待新生儿包皮环切术。 相似文献
998.
Monsen JT von der Lippe AL Havik OE Halvorsen MS Eilertsen DE 《Journal of personality assessment》2007,88(2):235-245
In this study, we examined the reliability and construct validity of the Structural Analysis of Social Behavior Introject Surface, Intrex long form A (SASB-IS; Benjamin, 1995) in 2 Norwegian samples. The fit of the 8 SASB-IS scales to the structural requirements of a circumplex model with relaxed equal spacing constraints was reasonably good in an outpatient sample, but poor in a normal reference sample. The deviations from the equal spacing based on an ideal circumplex model, however, seem to have minimal implications for the utility of the instrument in clinical assessment. The reliability of the SASB-IS was acceptable on most scales, but two scales had unacceptable low reliability. Correspondence with external criteria supported the validity of the SASB-IS in both samples. Profile patterns related to different segments of the introject circumplex model were systematically related to severity of psychopathology: Hostile and accepting patterns of self-relatedness formed polar opposites; control patterns and intermediate patterns gave intermediate pathology scores. 相似文献
999.
Stimulus overselectivity refers to the phenomenon whereby stimulus control over behavior is exerted only by a limited subset of the total number of stimuli present during discrimination learning. It often is displayed by individuals with autistic spectrum disorders or learning disabilities, but is not exclusive to those groups. The present studies investigated the impact of aging on stimulus control and overselectivity. Three age groups--18-22, 47-55, and 70-80 year olds-were studied in two experiments. All participants were trained on a simple discrimination task, randomly assigned to one of two conditions (either with or without a distractor task), and then tested for the emergence of overselectivity (Experiment 1). In Experiment 2 responding controlled by the overselected stimulus elements was reduced by introducing a verbal punisher. In subsequent tests, control of behavior by the previously underselected elements from Experiment 1 was enhanced across the two younger age groups but not the oldest group of participants. The results are discussed in relation to the attention-deficit and overshadowing accounts of overselectivity. 相似文献
1000.
32 observers judged the size of a letter, either an "A" or an "S," which was surrounded by a circle. Both letters were overestimated, but larger surrounding circles reduced the illusion. Decreasing the lightness contrast of the surrounding circle relative to the central letter diminished the illusion. The results suggest that, like the Delboeuf illusion, these circumscribed letters illusions are produced by interactions among size-coding neurons. 相似文献