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   3680篇
  免费   275篇
  国内免费   252篇
  2023年   41篇
  2022年   57篇
  2021年   68篇
  2020年   120篇
  2019年   102篇
  2018年   146篇
  2017年   134篇
  2016年   112篇
  2015年   111篇
  2014年   147篇
  2013年   362篇
  2012年   172篇
  2011年   209篇
  2010年   158篇
  2009年   129篇
  2008年   151篇
  2007年   200篇
  2006年   165篇
  2005年   120篇
  2004年   106篇
  2003年   79篇
  2002年   84篇
  2001年   133篇
  2000年   137篇
  1999年   90篇
  1998年   27篇
  1997年   42篇
  1996年   33篇
  1995年   25篇
  1994年   28篇
  1992年   41篇
  1991年   60篇
  1990年   43篇
  1989年   49篇
  1988年   48篇
  1987年   32篇
  1986年   23篇
  1985年   33篇
  1984年   30篇
  1983年   27篇
  1982年   20篇
  1981年   20篇
  1979年   25篇
  1976年   20篇
  1975年   17篇
  1974年   17篇
  1973年   18篇
  1971年   18篇
  1968年   16篇
  1967年   16篇
排序方式: 共有4207条查询结果,搜索用时 15 毫秒
921.
From birth, infants are exposed to a wealth of emotional information in their interactions. Much research has been done to investigate the development of emotion perception, and factors influencing that development. The current study investigates the role of familiarity on 3.5-month-old infants' generalization of emotional expressions. Infants were assigned to one of two habituation sequences: in one sequence, infants were visually habituated to parental expressions of happy or sad. At test, infants viewed either a continuation of the habituation sequence, their mother depicting a novel expression, an unfamiliar female depicting the habituated expression, or an unfamiliar female depicting a novel expression. In the second sequence, a new sample of infants was matched to the infants in the first sequence. These infants viewed the same habituation and test sequences, but the actors were unfamiliar to them. Only those infants who viewed their own mothers and fathers during the habituation sequence increased looking. They dishabituated looking to maternal novel expressions, the unfamiliar female's novel expression, and the unfamiliar female depicting the habituated expression, especially when sad parental expressions were followed by an expression change to happy or to a change in person. Infants are guided in their recognition of emotional expressions by the familiarity of their parents, before generalizing to others.  相似文献   
922.
Alcohol, tobacco and other drug abuse continue to cause major threats to the physiological, psychological, sociological and spiritual health of the nation. According to recent statistics, over 80% of the illegal drugs used by youth, both male and female, is marijuana, with cocaine, opium and their derivatives comprising at least 15% of the drugs used by youth. When considering the ill effects of drug abuse, it is the legal one, alcohol that is responsible for the greatest impact on society. While it remains imperative that allied health professionals understand the many ramifications of substance abuse, it is also critical that leaders of faith communities have the knowledge and skills to meet this challenge competently. Due to the relevance of ministries as a possible resource, the focus of this exploratory study is to assess the knowledge, skills and attitudes of clergy about substance use and abuse and to determine their confidence of clergy in assisting their congregation with need related to this area.  相似文献   
923.
Visual co-orientation with another's gaze direction (gaze following) may provide important information about the location of food, social interactions or predators. Gaze following has been shown in a variety of mammals, but only in few bird species, and has not been tested in precocial birds at all. It has been suggested that gaze following is an anti-predator behaviour, and in Common ravens (Corvus corax) and rooks (C. frugilegus), it emerges shortly after fledging, at a time when young birds leave the predator-safe nest. However, if gaze following is adaptive, the developmental pattern should differ between altricial and precocial birds. Greylag geese (Anser anser) are highly social birds with a precocial development. Goslings move and feed independently within 24 h post-hatching, and they are highly vulnerable to aerial predators. We therefore predicted that greylag geese are capable of gaze following and that they develop this skill already pre-fledging. We experimentally tested 19 hand-raised greylag goslings for their ability to follow a conspecific's gaze when they were between 10 days and 6 weeks old. In line with our predictions, first responses were already detectable in 10-day-old goslings. Our results therefore not only demonstrate that greylag geese follow the gaze of conspecifics into distant space, but that they also develop this ability much earlier than altricial birds.  相似文献   
924.
对不公正历史事件的情绪反应—— 群体内疚   总被引:1,自引:0,他引:1  
只要个体把自己归于施害群体, 并且承认所属群体对不道德的行为负有责任, 而无需自己参与其中, 就会体验到群体内疚, 它是一种自我聚焦的情绪。内群体责任、伤害行为的正当化、知觉到的补偿困难等认知因素都会影响群体内疚程度, 而个体的优先价值观和国家认同等会造成成员间群体内疚体验的个体差异。群体内疚的体验会促进施害群体对受害群体的道歉和补偿支持。将来伤害行为的群体内疚, 以及与其他情绪的综合考察方面还需要进一步研究。  相似文献   
925.
人类社会认知的神经机制:来自社会脑研究的证据   总被引:2,自引:0,他引:2  
社会认知是指从环境互动的过程中推测他人意图、情感和思想等内部状态的心理加工过程。社会脑假说认为,包括人类在内的灵长类大脑内肯定存在着一个旨在认识和理解他人表情的神经机制,在社会交往中通过该中枢迅速处理与他人相互作用的各种信息。本文通过回顾社会脑的构成与基本功能,镜像神经元的发现及功能,以及社会脑、镜像神经元对社会认知影响的相关研究,提出了人类社会认知不同于其他物种的三个主要区别。  相似文献   
926.
The Dutch Book Argument shows that an agent will lose surely in a gamble (a Dutch Book is made) if his degrees of belief do not satisfy the laws of the probability. Yet a question arises here: What does the Dutch Book imply? This paper firstly argues that there exists a utility function following Ramsey’s axioms. And then, it explicates the properties of the utility function and degree of belief respectively. The properties show that coherence in partial beliefs for Subjective Bayesianism means that the degree of belief, representing a belief ordering, satisfies the laws of probability, and that coherence in preferences means that the preferences are represented by expected utilities. A coherent belief ordering and a utility scale induce a coherent preference ordering; a coherent preference ordering induces a coherent belief ordering which can be uniquely represented by a degree-of-belief function. The preferences (values) and beliefs are both incoherent or disordered if a Dutch Book is made.  相似文献   
927.
Autistic Spectrum Disorder (ASD) is notable for severely impaired reciprocal social interaction skills relative to language and intellectual abilities, presenting a major barrier to social integration and vocational success. Evidence-based interventions to address these needs are lacking. We report on the development of a small, prototype conversation simulation to teach conversational skills to adolescents and adults with ASD and average to superior intellectual abilities. We also report on a test of the feasibility and acceptability of the simulation approach with a sample of the target population. The simulation engages the user in a virtual conversation with an on-screen partner whose reactions provide naturalistic feedback geared to the appropriateness of the learner's response choices. The prototype simulation, which provides for up to 12 potentially unique multi-turn conversations, was used over a period of 2 weeks by 16 adolescents and adults who then rated statements about the system on a linear scale of 1 (disagreement) to 5 (high agreement). The participants highly endorsed the majority of positive statements about the quality and credibility of the interaction and the virtual conversation partner. In contrast, agreement with positive statements about instructional features external to the conversation was moderate. Unexpectedly, most participants strongly agreed that using the simulation had been helpful to them. Further development and testing in the context of a controlled study with randomized assignment to control and experimental groups are needed to determine whether this approach is effective in improving real-world pragmatic language behavior of high-functioning adults with ASD.  相似文献   
928.
This paper examines the Islamische Zeitung (IZ), a newspaper made by German Muslims for German Muslims that informs about political, cultural, and theological topics. I argue that beyond providing information, the paper aims to create a platform of debate for a growing group of, in particular, younger pious educated Muslims who examine current politics by way of an Islamic and also an anti-globalization perspective. Of relevance for this audience are Islamic knowledge, local and global politics, everyday religious concerns and practices, and cultural affairs. I illustrate how by discussing certain topics on its pages, the makers of the IZ support specific issues of debates among some pious individuals, such as for example the participation of pious Muslims (men and women) in the democratic process by way of running in elections. Finally I argue that the IZ seeks to link the German Muslim community to the context of the global ummah and here in particular the globalized ummah as a new community marked by a shared popular culture universe. I illustrate that contrary to the claims of some of its opponents, the IZ is a platform for German Muslim affairs that participates in the broader public sphere as much as it helps to mediate a variety of possibilities for the participation of individuals and communities.  相似文献   
929.
930.
Offering reward for performance can motivate people to perform a task better, but better preparation for one task usually means decreased flexibility to perform different tasks. In six experiments in which reward varied between low and high levels, we found that reward can encourage people to prepare more flexibly for different tasks, but only as it increased from the level on the previous trial. When the same high rewards were offered continuously trial after trial, people were more inclined to simply stick with doing what had worked previously. We demonstrated such enhancements in flexibility in task switching, a difficult visual search task, and an easier priming of pop-out search task, which shows that this effect generalizes from executive tasks to perceptual processes that require relatively little executive control. These findings suggest that relative, transient changes in reward can exert more potent effects on behavioral flexibility than can the absolute amount of reward, whether it consists of money or points in a social competition.  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