全文获取类型
收费全文 | 3408篇 |
免费 | 98篇 |
国内免费 | 2篇 |
专业分类
3508篇 |
出版年
2023年 | 13篇 |
2021年 | 16篇 |
2020年 | 41篇 |
2019年 | 64篇 |
2018年 | 89篇 |
2017年 | 70篇 |
2016年 | 79篇 |
2015年 | 65篇 |
2014年 | 65篇 |
2013年 | 429篇 |
2012年 | 127篇 |
2011年 | 118篇 |
2010年 | 92篇 |
2009年 | 80篇 |
2008年 | 115篇 |
2007年 | 128篇 |
2006年 | 109篇 |
2005年 | 117篇 |
2004年 | 131篇 |
2003年 | 108篇 |
2002年 | 121篇 |
2001年 | 53篇 |
2000年 | 47篇 |
1999年 | 62篇 |
1998年 | 69篇 |
1997年 | 44篇 |
1996年 | 70篇 |
1995年 | 62篇 |
1994年 | 63篇 |
1993年 | 53篇 |
1992年 | 59篇 |
1991年 | 39篇 |
1990年 | 40篇 |
1989年 | 43篇 |
1988年 | 35篇 |
1987年 | 42篇 |
1986年 | 39篇 |
1985年 | 51篇 |
1984年 | 36篇 |
1983年 | 49篇 |
1982年 | 43篇 |
1981年 | 36篇 |
1980年 | 38篇 |
1979年 | 19篇 |
1978年 | 31篇 |
1977年 | 24篇 |
1976年 | 23篇 |
1975年 | 17篇 |
1974年 | 26篇 |
1973年 | 20篇 |
排序方式: 共有3508条查询结果,搜索用时 15 毫秒
211.
212.
Mary Lou Cheal Don R. Lyon Lawrence R. Gottlob 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》1994,47(3):699-739
The effects of attention on visual perception are assessed in the location-precuing paradigm. First, we present a review of some current metaphors for attention and relevant data. Then, a framework is suggested that provides an interpretation of the temporal sequence of external and assumed internal processes within a location-cuing trial. Cases when a precue correctly indicates the target location (valid trials) are compared to cases when the precue directs attention to the wrong location (invalid trials) with the cue location either at fixation or peripheral to the target location. Several specific hypotheses are suggested; these concern decrements in performance on invalid trials and effects of the location of a precue. For the most part, these hypotheses are supported by data in the literature and in some new studies. A gradient-filter metaphor for attention, which includes a synthesis of ideas from the gradient model and the attention gate model, is more consistent with the data than is a spotlight metaphor. 相似文献
213.
214.
Mary Beth Rosson 《Memory & cognition》1985,13(1):90-99
Two experiments examined the role of pronunciation rules and of lexical information in pronouncing letter strings. In Experiment 1, subjects pronounced pseudowords varying in the strength of the rules needed to pronounce them, as well as in the availability of a lexical model. In Experiment 2, the stimuli were words varying in rule strength and in usage frequency. The pronunciation times from both experiments displayed an interaction between rules and lexical information: When the rules necessary were strong, the relative availability of lexical information was less important than when the rules were weak. The results were discussed with respect to both traditional dual-process models of pronunciation and models proposing the use of lexical analogies. 相似文献
215.
David S. Chester Sarah Beth Bell C. Nathan DeWall Samuel J. West Marisabel Romero-Lopez Adam W. Craig 《Aggressive behavior》2019,45(5):507-516
People often have to make decisions between immediate rewards and more long-term goals. Such intertemporal judgments are often investigated in the context of monetary choice or drug use, yet not in regard to aggressive behavior. We combined a novel intertemporal aggression paradigm with functional neuroimaging to examine the role of temporal delay in aggressive behavior and the neural correlates thereof. Sixty-one participants (aged 18–22 years; 37 females) exhibited substantial variability in the extent to which they selected immediate acts of lesser aggression versus delayed acts of greater aggression against a same-sex opponent. Choosing delayed-yet-more-severe aggression was increased by provocation and associated with greater self-control. Preferences for delayed aggression were associated with greater activity in the ventromedial prefrontal cortex (VMPFC) during such choices, and reduced functional connectivity between the VMPFC and brain regions implicated in motor impulsivity. Preferences for immediate aggression were associated with reduced functional connectivity between the VMPFC and the frontoparietal control network. Dispositionally aggressive participants exhibited reduced VMPFC activity, which partially explained and suppressed their preferences for delayed aggression. Blunted VMPFC activity may thus be a neural mechanism that promotes reactive aggression towards provocateurs among dispositionally aggressive individuals. These findings demonstrate the utility of an intertemporal framework for investigating aggression and provide further evidence for the similar underlying neurobiology between aggression and other rewarding behaviors. 相似文献
216.
McDonald R Dodson MC Rosenfield D Jouriles EN 《Journal of abnormal child psychology》2011,39(7):1013-1023
This study examined whether Project Support, a parenting intervention shown to reduce child conduct problems, also exerts
positive effects on features of psychopathy in children. Participants were 66 families (mothers and children) recruited from
domestic violence shelters who participated in a randomized controlled trial evaluating Project Support. Each family included
at least one child between the ages of 4 and 9 who was exhibiting clinical levels of conduct problems. Families were randomly
assigned to the Project Support intervention condition or to an existing services comparison condition, and they were assessed
on 6 occasions over 20 months, following their departure from the shelter. Children in families in the Project Support condition,
compared with those in the comparison condition, exhibited greater reductions in features of psychopathy. Moreover, the changes
in features of psychopathy remained after accounting for changes in conduct problems. Project Support’s effects on features
of psychopathy were mediated by improvements in mothers’ harsh and inconsistent parenting. These findings on the effects of
an intervention on features of psychopathy are the first from a randomized controlled trial. They inform the debate about
whether features of psychopathy in children are responsive to intervention, and hold important implications for clinical practice. 相似文献
217.
Mary M. Smyth Norma A. Pearson Lindsay R. Pendleton 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》1988,40(3):497-514
Five experiments are reported in which subjects were asked to remember short, visually presented sequences of whole body movement patterns, words, and spatial positions. The items were recalled in order in a memory span paradigm. During presentation of the items to be remembered subjects simply watched, or they carried out a concurrent activity involving articulatory suppression, movement to external spatial targets, or body-related movement. When the movement patterns to be remembered were familiar to subjects, movement span was not disrupted by articulatory suppression or movement to spatial targets but was disrupted by body-related movement. This movement suppression task, however, did not interfere with performance on a spatial span task or on verbal span. It is concluded that the memory for patterns of limb movement differs from memory for movement to spatial targets and that accounts of visuo-spatial processes in working memory involve the latter type of movement. 相似文献
218.
Salience network response to changes in emotional expressions of others is heightened during early adolescence: relevance for social functioning 下载免费PDF全文
Maya L. Rosen Margaret A. Sheridan Kelly A. Sambrook Meg J. Dennison Jessica L. Jenness Mary K. Askren Andrew N. Meltzoff Katie A. McLaughlin 《Developmental science》2018,21(3)
Adolescence is a unique developmental period when the salience of social and emotional information becomes particularly pronounced. Although this increased sensitivity to social and emotional information has frequently been considered with respect to risk behaviors and psychopathology, evidence suggests that increased adolescent sensitivity to social and emotional cues may confer advantages. For example, greater sensitivity to shifts in the emotions of others is likely to promote flexible and adaptive social behavior. In this study, a sample of 54 children and adolescents (age 8–19 years) performed a delayed match‐to‐sample task for emotional faces while undergoing fMRI scanning. Recruitment of the anterior cingulate and anterior insula when the emotion of the probe face did not match the emotion held in memory followed a quadratic developmental pattern that peaked during early adolescence. These findings indicate meaningful developmental variation in the neural mechanisms underlying sensitivity to changes in the emotional expressions. Across all participants, greater activation of this network for changes in emotional expression was associated with less social anxiety and fewer social problems. These results suggest that the heightened salience of social and emotional information during adolescence may confer important advantages for social behavior, providing sensitivity to others’ emotions that facilitates flexible social responding. 相似文献
219.
220.
Research on dynamic stereotypes of women has shown that women perceive large differences between contemporary women and women who lived in the past in terms of agentic (or masculine) traits. This temporal discrepancy in agentic attributes of women may suggest that agency is not a stable trait of women and may result in impaired performance in domains associated with agency, such as quantitative reasoning. We propose that women who think that agency has always characterized their gender group would perform better in quantitative tasks. Indeed, we found that as the difference between agency attributed to present and past women decreased, U.S. college women’s (n?=?80) accuracy in a quantitative test increased (Study 1). Further, reading a text about women’s achievements in the history of science reduced the discrepancy between agency attributed to past and present women and had an indirect positive effect on quantitative performance by 150 U.S. college women (Study 2). Findings suggest that women’s participation and performance in science could be improved by raising awareness of women’s historical achievements in male-dominated areas. 相似文献