全文获取类型
收费全文 | 2639篇 |
免费 | 261篇 |
国内免费 | 715篇 |
出版年
2024年 | 10篇 |
2023年 | 29篇 |
2022年 | 54篇 |
2021年 | 91篇 |
2020年 | 103篇 |
2019年 | 80篇 |
2018年 | 101篇 |
2017年 | 117篇 |
2016年 | 77篇 |
2015年 | 83篇 |
2014年 | 73篇 |
2013年 | 231篇 |
2012年 | 166篇 |
2011年 | 222篇 |
2010年 | 188篇 |
2009年 | 193篇 |
2008年 | 207篇 |
2007年 | 295篇 |
2006年 | 277篇 |
2005年 | 244篇 |
2004年 | 160篇 |
2003年 | 117篇 |
2002年 | 72篇 |
2001年 | 57篇 |
2000年 | 43篇 |
1999年 | 63篇 |
1998年 | 34篇 |
1997年 | 32篇 |
1996年 | 26篇 |
1995年 | 27篇 |
1994年 | 18篇 |
1993年 | 22篇 |
1992年 | 9篇 |
1991年 | 7篇 |
1990年 | 9篇 |
1989年 | 9篇 |
1988年 | 9篇 |
1987年 | 4篇 |
1986年 | 11篇 |
1985年 | 8篇 |
1984年 | 10篇 |
1983年 | 7篇 |
1982年 | 6篇 |
1981年 | 5篇 |
1980年 | 6篇 |
1979年 | 3篇 |
排序方式: 共有3615条查询结果,搜索用时 15 毫秒
991.
身体活动与心理活动动词加工的ERP比较 总被引:4,自引:0,他引:4
在19名右利手被试完成词汇判断任务的同时,通过119个头皮电极记录其事件相关电位(ERP),以此来探讨表示身体活动的动词与表示心理活动的动词之间的加工差异。研究结果表明,在200~300ms时窗,在左半球枕区附近,身体活动动词所诱发的ERP比心理活动动词所诱发的ERP在正走向上更小。在300~400ms(即类似的N400)时窗,动词类型效应出现在中线和左半球的更大的区域上,特别是中央区附近,身体活动动词所诱发的ERP比心理活动动词所诱发的ERP在负走向上更大。语言表征的神经生物学理论可以解释本研究的部分结果。 相似文献
992.
Xiao Zhang Ph.D. 《Family process》2012,51(4):483-497
Using a cross‐sectional design with 407 Chinese children aged 3–5 years and their parents, this study examined the effects of socioeconomic status, specifically parents' education and family income, on the children's mother–child relationships, father–child relationships, and the social environment in their families. The results indicated that income negatively predicted conflict in father–child relationships and positively predicted family active‐recreational environments. Income also positively predicted family cohesion among girls but not boys. Maternal education negatively predicted conflict in mother–child relationships and positively predicted closeness in mother–child and father–child relationships, family cohesion, and the intellectual‐cultural and active‐recreational environments in the family. Paternal education positively predicted family cohesion and intellectual‐cultural and active‐recreational environments. Income was found to partially mediate the effects of both maternal and paternal education on family active‐recreational environments. Findings are discussed in the frameworks of the family stress model and the family investment model. 相似文献
993.
The development of representations for taxonomic categories is influenced by many factors, such as age, life experiences, and education. It was hypothesized that Mosuos might be aware of taxonomic relations differently than Hans, as indicated by Sha (1996). Three experiments--word associations, lexicon decisions, and semantic categorizations--were conducted on young adults of Mosuos and Hans and consistent results were obtained: the Mosuos were found both similar to and different from the Hans in their experimental performance. They were apparently aware of taxonomic relations less than the Hans among categories of different levels and among categories of basic level, consistent with the conclusion that the uniqueness of a specific culture influences the people's representations for the hierarchically structured taxonomic categories (López, Atran, Coley, Medin & Smith, 1997). The present forms of education did not seem to be as effective as educators expected to help promote Mosuo children's development of knowledge of taxonomic categories. If school education would be available that is compatible with the cultural value of a relatively isolated, small population, such as Mosuos, and is of practical value for the young children to develop a better knowledge of the world, then a study would be of critical value into how educated individuals would be different from uneducated ones in their awareness of taxonomic relations. 相似文献
994.
Smaragda Kazi Andreas Demetriou George Spanoudis Xiang Kui Zhang Yuan Wang 《Intelligence》2012,40(6):622-637
This study investigated intellectual development in 4–7 years old Greek and Chinese children. They were examined on speeded performance, working memory, reasoning, and self-awareness tasks in order to investigate possible effects of learning the Chinese logographic system on possible differences in intellectual development between these ethnic groups. Speeded performance was examined with commonly familiar objects and tasks related to reading (i.e., Latin, Arabic, and Chinese characters). Chinese outperformed Greeks in (1) reading-related processing efficiency tasks but not in common objects (2) spatial but not verbal WM, (3) cognitive, and (4) the self-awareness tasks. Structural equation modeling showed that performance is organized in four systems (i.e., domain-specific problem solving, representational capacity, inference, and consciousness) integrated by g, in both ethnic groups. There were differences between the two ethnicities in the strength of relations between constructs, attributed to Chinese logographic experience. That is, the massive practice in visuo/spatial processing and memory seemed to provide an advantage in the communication between systems of the mind causing increased general cognitive fluidity, expressed in higher intellectual performance among the Chinese. 相似文献
995.
This article examines cultural differences in how people value future and past events. Throughout four studies, the authors found that European Canadians attached more monetary value to an event in the future than to an identical event in the past, whereas Chinese and Chinese Canadians placed more monetary value to a past event than to an identical future event. The authors also showed that temporal focus-thinking about the past or future-explained cultural influences on the temporal value asymmetry effect. Specifically, when induced to think about and focus on the future, Chinese valued the future more than the past, just like Euro-Canadians; when induced to think about and focus on the past, Euro-Canadians valued the past more than the future, just like Chinese. 相似文献
996.
Wang L Ross CA Zhang T Dai Y Zhang H Tao M Qin J Chen J He Y Zhang M Xiao Z 《Journal of personality disorders》2012,26(3):393-401
The objective of this study was to investigate the frequency, clinical characteristics, and comorbidity of borderline personality disorder (BPD) among psychiatric outpatients in two clinics at Shanghai Mental Health Center. A cross-sectional investigation was conducted. From 3,075 outpatients screened using the Personality Diagnostic Questionnaire-IV+, 2,284 patients positive for a personality disorder were assessed using the Structured Clinical Interview for DSM-IV Personality Disorders. The frequency of BPD among the psychiatric outpatients was 5.8%, with a frequency of 3.5% among males and 7.5% among females (p < .01). BPD was found to have extensive comorbidity with Axis I and II disorders. This study proves that BPD does occur in China. The detected frequency among outpatients is lower than that reported in North America. 相似文献
997.
青少年时期是一个转折期,也是冒险行为多发的时期。以往有关青少年冒险行为的研究大多集中在心理学视角与社会关系学视角,双系统竞争理论从生物学视角对青少年高冒险行为作出解释。该理论认为青少年高冒险行为的产生主要是由于大脑中的社会情绪系统与认知控制系统相互竞争作用的结果。社会情绪系统对奖赏寻求起作用,而认知控制系统对执行功能起作用。较早发展的社会情绪系统与较晚才成熟的认知控制系统间的竞争是青少年冒险行为产生的原因。 相似文献
998.
999.
1000.
选取"二择一的选择任务",以风险决策任务为基线,对不同概率区间所代表的三种不同模糊程度(0-100%、20-80%、40-60%)下的模糊决策进行了神经机制上的探究,结果发现:(1)三种不同模糊程度下的模糊决策在脑电上不存在差异;(2)与三种不同模糊程度相对应出现的三种相同风险程度的风险决策,在脑电上的激活有所不同;(3)三种模糊程度下的模糊决策与相对应出现的三种相同风险程度的风险决策,只有在40~60%和50~50%的条件下,脑电上是存在差异的。这些结果表明:被试在做决策时所依赖的参照点是相对的而不是绝对的;在40~60%和50~50%条件下,被试的决策过程有冲突的,是最困难的。 相似文献