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   5009篇
  免费   278篇
  2023年   32篇
  2022年   59篇
  2021年   81篇
  2020年   124篇
  2019年   116篇
  2018年   221篇
  2017年   217篇
  2016年   261篇
  2015年   190篇
  2014年   210篇
  2013年   682篇
  2012年   306篇
  2011年   295篇
  2010年   178篇
  2009年   174篇
  2008年   243篇
  2007年   228篇
  2006年   179篇
  2005年   138篇
  2004年   152篇
  2003年   161篇
  2002年   114篇
  2001年   74篇
  2000年   113篇
  1999年   57篇
  1998年   44篇
  1997年   39篇
  1996年   37篇
  1995年   18篇
  1994年   25篇
  1993年   22篇
  1992年   32篇
  1991年   23篇
  1990年   33篇
  1989年   29篇
  1988年   22篇
  1987年   21篇
  1986年   25篇
  1985年   15篇
  1984年   27篇
  1983年   23篇
  1982年   19篇
  1981年   12篇
  1980年   13篇
  1979年   18篇
  1978年   14篇
  1975年   16篇
  1972年   15篇
  1971年   13篇
  1970年   17篇
排序方式: 共有5287条查询结果,搜索用时 15 毫秒
951.
Psychological late-life sequelae of war childhood have rarely been examined. The study evaluated posttraumatic symptoms and current psychopathology in a sample of former German war children of which 10.8% reported significant posttraumatic symptoms indicating a possible posttraumatic stress disorder (PTSD). The presence of PTSD symptoms was significantly associated with current psychopathological distress, even 6 decades after World War II. Our data underline the urgent need for research in this field. Clinical implications for a psychotherapeutic approach are discussed.  相似文献   
952.
Recently, researchers reported a bias for placing agents predominantly on the left side of pictures. Both hemispheric specialization and cultural preferences have been hypothesized to be the origin of this bias. To evaluate these hypotheses, we conducted a study with participants exposed to different reading and writing systems: Germans, who use a left-to-right system, and Israelis, who use a right-to-left system. In addition, we manipulated the degree of exposure to the writing systems by testing preschoolers and adults. Participants heard agent-first or recipient-first sentences and were asked to draw the content of the sentences or to arrange transparencies of protagonists and objects such that their arrangement depicted the sentences. Although preschool-age children in both countries showed no directional bias, adults manifested a bias that was consistent with the writing system of their language. These results support the cultural hypothesis regarding the origin of spatial-representational biases.  相似文献   
953.
Strategy use in the traditional reading span test was examined by recording participants' eye movements during the task (Experiment 1) and by interviewing participants about their strategy use (Experiment 2). In Experiment 1, no differences between individuals with a low, medium, and high span were observed in how they distributed processing time between task elements. In all three groups, fixation times on words up to the to-be-remembered (TBR) word became shorter and the time spent on the TBR longer as memory load in the task increased. The results of Experiment 2, however, show that span groups differ in the use of memory encoding strategies: individuals with a low span use mainly rehearsal, whereas individuals with a high span use almost exclusively semantic elaboration. The results indicate that the use of elaborative strategies may enhance span performance but that not all individuals are necessarily able to use such strategies efficiently.  相似文献   
954.
The aim of the present study was to examine the effectiveness of manual-guided cognitive-behaviour therapy (CBT) for childhood obsessive-compulsive disorder (OCD) administered within three regular, i.e., non-academic, Norwegian outpatient child psychiatric clinics. METHODS: A total of 28 youngsters, aged 8-17 with primary OCD entered the study. Assessment at intake included Norwegian versions of the K-SADS-PL, Children's Yale-Brown Obsessive Compulsive Scale (CY-BOCS), and a measure of OCD-specific functional impairment (Child OCD Impact Scale (COIS)). Therapy consisted of 12 manual-guided sessions with combined individual and family CBT-based interventions and was conducted by psychologists and physicians under training and supervision. Outcome was assessed after treatment and at 3- and 6-month follow-ups by means of the CY-BOCS, the Clinical Global Impression (CGI) and the CGI-Improvement scales, and the COIS. RESULTS: Twenty-four youngsters (86%) completed treatment and were available for the follow-up assessments. Significant improvements were found on all outcome measures after treatment, including a mean symptom reduction on the CY-BOCS of 60.6%, increasing to 68.8% at the 6-month follow-up. Estimates of within-group effect sizes showed strong effects of treatment. CONCLUSION: The results of the present study suggest that manual-guided CBT for childhood OCD can be successfully implemented in non-academic community child psychiatric settings with outcomes in accordance with previous findings from highly specialised university clinics.  相似文献   
955.
This study examined significant others' expressed emotion (EE) and a closely related construct, perceived criticism, as predictors of cognitive-behavioral therapy outcome in a sample of 40 patients with social phobia (social anxiety disorder). Patients enrolled in group therapy for social phobia completed pre- and post-treatment questionnaire measures of perceived criticism and anxious and depressive symptoms. Designated significant others were assessed for the components of high EE (criticism, hostility and emotional overinvolvement) using the Camberwell Family Interview. It was hypothesized that these high-EE components and patients' perceived criticism would be associated with poorer treatment outcome, and results ran counter to these expectations. Controlling for initial social phobia severity, lower levels of perceived criticism predicted treatment dropout. There was also a nonsignificant trend for participants with a significant other rated as high in emotional overinvolvement to show less change on a composite symptom measure. Findings from this study suggest that close relationships impact the outcome of cognitive-behavioral interventions for social phobia.  相似文献   
956.
Alcohol lapses are the modal outcome following treatment for alcohol use disorders, yet many alcohol researchers have encountered limited success in the prediction and prevention of relapse. One hypothesis is that lapses are unpredictable, but another possibility is the complexity of the relapse process is not captured by traditional statistical methods. Data from Project Matching Alcohol Treatments to Client Heterogeneity (Project MATCH), a multisite alcohol treatment study, were reanalyzed with 2 statistical methodologies: catastrophe and 2-part growth mixture modeling. Drawing on previous investigations of self-efficacy as a dynamic predictor of relapse, the current study revisits the self-efficacy matching hypothesis, which was not statistically supported in Project MATCH. Results from both the catastrophe and growth mixture analyses demonstrated a dynamic relationship between self-efficacy and drinking outcomes. The growth mixture analyses provided evidence in support of the original matching hypothesis: Individuals with lower self-efficacy who received cognitive behavior therapy drank far less frequently than did those with low self-efficacy who received motivational therapy. These results highlight the dynamical nature of the relapse process and the importance of the use of methodologies that accommodate this complexity when evaluating treatment outcomes.  相似文献   
957.
Enhancing exposure-based therapy from a translational research perspective   总被引:1,自引:0,他引:1  
Combining an effective psychological treatment with conventional anxiolytic medication is typically not more effective than unimodal therapy for treating anxiety disorders. However, recent advances in the neuroscience of fear reduction have led to novel approaches for combining psychological therapy and pharmacological agents. Exposure-based treatments in humans partly rely on extinction to reduce the fear response in anxiety disorders. Animal studies have shown that D-cycloserine (DCS), a partial agonist at the glycine recognition site of the glutamatergic N-methyl-D-aspartate receptor facilitates extinction learning. Similarly, recent human trials have shown that DCS enhances fear reduction during exposure therapy of some anxiety disorders. This article discusses the biological and psychological mechanisms of extinction learning and the therapeutic value of DCS as an augmentation strategy for exposure therapy. Areas of future research will be identified.  相似文献   
958.
In contrast to Shultz and Takane [Shultz, T.R., & Takane, Y. (2007). Rule following and rule use in the balance-scale task. Cognition, in press, doi:10.1016/j.cognition.2006.12.004.] we do not accept that the traditional Rule Assessment Method (RAM) of scoring responses on the balance scale task has advantages over latent class analysis (LCA): RAM is similar to a very restricted form of LCA. The apparent shortcomings of LCA are also less severe than they suggest. Via new simulations we show that LCA detects small classes reliably. We also counter their concerns regarding the torque difference effect and we underline the problems connectionist models have with correctly responding to balance items. Despite these differences in opinion we agree with Shultz and Takane on the possible avenues for future research.  相似文献   
959.
Reactions to stimuli that were shortly before presented as distractors are usually slowed down; this phenomenon is known as negative priming. Negative priming is an accepted index for tapping into selective control mechanisms. Although this effect is well established for adults, it has been claimed that children do not show negative priming. Recently, however, V. E. Pritchard and E. Neumann challenged this view and concluded that selective control mechanisms are already fully developed in young children. The authors of the present study analyzed differences between older studies, in which no negative priming had been observed, and the Pritchard and Neumann (2004) study. In sum, the present study yielded further evidence for an intact selective control mechanism in young children. The authors also linked this empirical finding to the broader literature on negative priming by a direct comparison with an adult sample.  相似文献   
960.
This study examined whether children with mathematical difficulties (MDs) or comorbid mathematical and reading difficulties have a working memory deficit and whether the hypothesized working memory deficit includes the whole working memory system or only specific components. In the study, 31 10-year-olds with MDs and 37 10-year-olds with both mathematical and reading difficulties were compared with 47 age-matched and 50 younger controls (9-year-olds) on a number of working memory tasks. Compared with the age-matched controls, both groups of children with MDs performed worse on tasks tapping the central executive (e.g., visual matrix span) and the phonological loop (e.g., word span). More important, the MD group performed worse than the younger controls on the counting span task, whereas the group with comorbid mathematical and reading difficulties performed worse on the counting span task and the visual matrix span task. These findings provide support for the assumption that children with MDs have a working memory deficit. More specifically, children with MDs have a central executive deficit connected to concurrent processing and storage of numerical and visual information.  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