全文获取类型
收费全文 | 2524篇 |
免费 | 133篇 |
专业分类
2657篇 |
出版年
2023年 | 12篇 |
2022年 | 23篇 |
2021年 | 29篇 |
2020年 | 54篇 |
2019年 | 71篇 |
2018年 | 87篇 |
2017年 | 68篇 |
2016年 | 110篇 |
2015年 | 70篇 |
2014年 | 80篇 |
2013年 | 271篇 |
2012年 | 121篇 |
2011年 | 136篇 |
2010年 | 79篇 |
2009年 | 93篇 |
2008年 | 159篇 |
2007年 | 135篇 |
2006年 | 115篇 |
2005年 | 104篇 |
2004年 | 103篇 |
2003年 | 114篇 |
2002年 | 88篇 |
2001年 | 26篇 |
2000年 | 44篇 |
1999年 | 34篇 |
1998年 | 31篇 |
1997年 | 23篇 |
1996年 | 24篇 |
1995年 | 19篇 |
1994年 | 18篇 |
1993年 | 23篇 |
1992年 | 12篇 |
1991年 | 16篇 |
1990年 | 20篇 |
1989年 | 13篇 |
1988年 | 9篇 |
1987年 | 10篇 |
1986年 | 10篇 |
1985年 | 14篇 |
1984年 | 18篇 |
1983年 | 17篇 |
1982年 | 13篇 |
1980年 | 15篇 |
1979年 | 10篇 |
1978年 | 9篇 |
1976年 | 11篇 |
1975年 | 9篇 |
1973年 | 9篇 |
1971年 | 9篇 |
1968年 | 8篇 |
排序方式: 共有2657条查询结果,搜索用时 0 毫秒
91.
92.
Visual line bisection in sinistrals and dextrals as a function of hemispace, hand, and scan direction 总被引:1,自引:0,他引:1
Visual line bisection was investigated in 26 sinistral and 24 dextral subjects as a function of hemispace, hand and scan direction. An ANOVA revealed significant main effects for hand preference, due to the mean bisection errors of dextral subjects being significantly leftward of those of sinistral subjects; for hand, due to the bisection errors of the left hand being significantly to the left of the right hand; and for scan, due to the bisection errors following a left scan being significantly to the left of a right scan. One significant interaction was found, that between hand and direction of scan, due to a significant difference between left and right hands following a scan from the left but not following a scan from the right. For dextral subjects the leftward bisection errors of the left and right hands following a scan from the left, but not for a scan from the right, differed significantly from the midpoint. For sinistral subjects the leftward bisection errors following a scan from the left and rightward bisection errors following a scan from the right differed significantly from the midpoint for the left hand but not for the right hand. No significant main effect or interactions for hemispace were found. This confirms that both sinistral and dextral subjects display pseudoneglect when using their preferred hand and scanning from the left. However, sinistrals, but not dextrals, will display reversed pseudoneglect when using their preferred hand and adopting a scan direction from the right. These results are discussed in terms of the interaction between three factors, whose influence can jointly and severally produce misbisections, hemispheric specialisation for visuospatial function, hemispheric activation for a manual response, and the allocation of visual attention. 相似文献
93.
Ran MS Xiang MZ Mao WJ Hou ZJ Tang MN Chen EY Chan CL Yip PS Conwell Y 《Suicide & life-threatening behavior》2005,35(6):694-701
In this study, demographic and clinical characteristics of individuals with schizophrenia in a Chinese rural community who had attempted suicide at some time in their lives and those who had not made a suicide attempt were compared. Among individuals with schizophrenia, subjects with (n = 38) and without (n = 472) a lifetime history of suicide attempt were assessed with the Present State Examination. The results indicate that attempters had a significantly younger age, higher level of education, higher rate of lifetime depressed mood and hopelessness, and a larger number of positive symptoms than patients without suicide attempts. The logistic regression models also indicated that hopelessness, the number of positive symptoms and age were the most important predictors. Early interventions focusing on reducing hopelessness and controlling positive symptoms may help reduce the risk of suicide attempts among patients with schizophrenia. 相似文献
94.
Eric?RassinEmail author Peter?Muris Jeffrey?Jong Gwendolijn?de?Bruin 《Journal of psychopathology and behavioral assessment》2005,27(4):253-258
In the clinical literature, thought suppression is considered to play a role in the development of intrusion-related psychiatric syndromes, such as obsessive-compulsive disorder, acute or posttraumatic stress disorder, phobias, and addiction. This assumption goes back to a study by D. M. Wegner, D. J. Schneider, S. R. Carter, and T. L. White (1987) in which participants were asked to suppress thoughts of a white bear, an assignment that proved to be nearly impossible to complete. The present two studies sought to explore the influence of the content of control instructions on intrusion frequency in thought suppression experiments. Notably, during nonsuppression (i.e., control) periods, participants can either be instructed to think about white bears (i.e., expression instruction), or to think of anything including white bears (i.e., liberal instruction). Results indicated that expression instructions resulted in an increased number of target thoughts, while liberal instructions did not. Implications for the interpretation of thought suppression findings are discussed. 相似文献
95.
The authors report differential item functioning (DIF) between Black and White participants completing the 60-item Padua Inventory (PI) for obsessive-compulsive disorder (OCD). The authors use an Internet-generated sample that included 105 Blacks, 67 Hispanics, 582 Whites, and 136 additional participants reporting an OCD diagnosis. Factor analysis replicated prior work indicating the PI consists of four factors: contamination fears, checking behaviors, impaired control over thoughts, and fear of losing control over impulses. On the contamination subscale, nonclinical Black and Hispanic mean scores were as high as the OCD group. Comparing Blacks to Whites, the authors applied an item response theory, DIF-graded response model to each factor and found significant DIF on eight items, with biased items in each factor. Results suggest that extraneous factors contribute to racial differences on scores. Cultural practices and fear of being negatively stereotyped may contribute to item bias. 相似文献
96.
97.
98.
99.
100.
This meta-analysis of eating disorder prevention programs found that intervention effects ranged from an absence of any effects to reductions in current and future eating pathology. Certain effects persisted as long as 2 years and were superior to minimal-intervention control conditions. Larger effects occurred for selected (vs. universal), interactive (vs. didactic), and multisession (vs. single session) programs; for programs offered solely to females and to participants over age 15; for programs without psychoeducational content; and for trials that used validated measures. The results identify promising prevention programs and delineate sample, format, and design features that are associated with larger effects, but they suggest the need for improved methodological rigor and statistical modeling of trials and enhanced theoretical rationale for interventions. 相似文献