全文获取类型
收费全文 | 15857篇 |
免费 | 710篇 |
国内免费 | 7篇 |
专业分类
16574篇 |
出版年
2020年 | 173篇 |
2019年 | 181篇 |
2018年 | 277篇 |
2017年 | 248篇 |
2016年 | 284篇 |
2015年 | 220篇 |
2014年 | 267篇 |
2013年 | 1152篇 |
2012年 | 487篇 |
2011年 | 446篇 |
2010年 | 309篇 |
2009年 | 283篇 |
2008年 | 421篇 |
2007年 | 440篇 |
2006年 | 388篇 |
2005年 | 373篇 |
2004年 | 324篇 |
2003年 | 280篇 |
2002年 | 314篇 |
2001年 | 683篇 |
2000年 | 683篇 |
1999年 | 463篇 |
1998年 | 173篇 |
1997年 | 168篇 |
1996年 | 166篇 |
1995年 | 142篇 |
1992年 | 370篇 |
1991年 | 344篇 |
1990年 | 356篇 |
1989年 | 304篇 |
1988年 | 290篇 |
1987年 | 288篇 |
1986年 | 261篇 |
1985年 | 263篇 |
1984年 | 245篇 |
1983年 | 206篇 |
1982年 | 161篇 |
1979年 | 220篇 |
1978年 | 181篇 |
1977年 | 153篇 |
1975年 | 193篇 |
1974年 | 237篇 |
1973年 | 235篇 |
1972年 | 183篇 |
1971年 | 184篇 |
1970年 | 150篇 |
1969年 | 183篇 |
1968年 | 215篇 |
1967年 | 195篇 |
1966年 | 162篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
811.
812.
813.
814.
815.
816.
In a choice reaction-time task, the response-interference effect is an increase in reaction times when the two possible responses are from the same hand compared to when the two possible responses are from different hands [Psychonomic Science 2 (1965) 55-56; Human Motor Control, Academic Press, San Diego, CA, 1991]. Although the influence of practice on other reaction-time effects (i.e., the complexity effect and precuing) has been examined, research evaluating the influence of practice on the response-interference effect is limited. Therefore, two experiments were conducted to determine the influence of practice on the response-interference effect. In Experiment 1, a bilateral transfer task was used to assess the influence of practice on the response-selection processes associated with the response-interference effect. The practice results indicated decreased reaction times, but did not influence the response-interference effect. In Experiment 2, a priming task was used to assess the influence of practice on response-implementation processes associated with the response-interference effect. The reaction time results indicated a change in the response-interference effect. The results of these two experiments suggest that with only two fingers on response keys, practice alters the mechanical constraints affecting the response-implementation processes and thereby decreases the response-interference effect. 相似文献
817.
Cacioppo JT 《The American psychologist》2002,57(11):819-831
Social science and neuroscience perspectives represent two ends of a continuum of levels of organization studied in psychology. Human behavior as a whole unfolds at social levels of organization, whereas much of the research in psychology has focused on cognitive and biological pieces of this whole. Recent evidence underscores the complementary nature of social, cognitive, and biological levels of analysis and how research integrating these levels can foster more comprehensive theories of the mechanisms underlying complex behavior and the mind. This research underscores the unity of psychology and the importance of retaining multilevel integrative research that spans molar and molecular levels of analysis. 相似文献
818.
Benjamin LT Crouse EM;American Psychological Association 《The American psychologist》2002,57(1):38-50
In 1954, in Brown v. Board of Education, the Supreme Court struck down the "separate but equal" doctrine of the Plessy v. Ferguson decision (1896) that was the foundation of school segregation in 17 states and the District of Columbia. Brown is arguably the most important Supreme Court decision of the 20th century in terms of its influence on American history. Moreover, it has a special significance for psychology because it marked the first time that psychological research was cited in a Supreme Court decision and because social science data were seen as paramount in the Court's decision to end school segregation. This article describes psychologist Kenneth B. Clark's role in that case and the response of the American Psychological Association to scientific psychology's moment in a great spotlight. 相似文献
819.
Pinninti N Steer RA Rissmiller DJ Nelson S Beck AT 《Behaviour research and therapy》2002,40(9):1071-1079
To ascertain how useful the Beck Scale for Suicide Ideation (BSI; Beck & Steer, Manual for Beck Scale for Suicide Ideation (1991)) would be for assessing the severity of suicidal ideation in patients who were diagnosed with schizophrenia, schizoaffective, or bipolar disorders, 142 inpatients were asked to complete the BSI. Eight (6%) patients refused, and four patients (3%) were unable to complete the BSI because they were unable to concentrate. Of the 130 patients who completed the BSI, 53 (41%) had schizoaffective, 37 (28%) had paranoid schizophrenia, 30 (23%) had manic bipolar, and 10 (8%) had depressed bipolar disorders. The coefficient alpha for the BSI was .96, and its one-week test-retest reliability for a subsample of 15 inpatients was 0.88, p < 0.001. The BSI total scores were positively correlated with having ever attempted suicide, r = 0.46, p < 0.001. According to the BSI, 36 (28%) patients were classified as current suicide ideators. The results were discussed as supporting the use of the BSI with inpatients who are diagnosed with schizophrenia, schizoaffective, or bipolar disorders. 相似文献
820.
Altmann GT 《Cognition》2002,85(2):B43-B50
Infants can discriminate between familiar and unfamiliar grammatical patterns expressed in a vocabulary that is distinct from that used earlier during familiarization (Cognition 70(2) (1999) 109; Science 283 (1999) 77). Various models have captured the data, although each required that discrimination be distinct, in terms of the computational process, from familiarization. This article describes a simple recurrent network (SRN), equipped only with the assumption that it should predict what comes next, which models the data without distinguishing between familiarization and discrimination. To accomplish this, the SRN requires pre-training on a range of sequences instantiating different structures and different vocabulary items to those used subsequently during familiarization and test. Pre-training enables the network to avoid replacing structure acquired during familiarization with structure experienced at test. An equivalent enabling condition may underpin infants' resistance to catastrophic interference between the different structures and vocabulary items to which they are exposed. 相似文献