全文获取类型
收费全文 | 2882篇 |
免费 | 368篇 |
国内免费 | 715篇 |
出版年
2024年 | 11篇 |
2023年 | 48篇 |
2022年 | 86篇 |
2021年 | 101篇 |
2020年 | 122篇 |
2019年 | 104篇 |
2018年 | 144篇 |
2017年 | 140篇 |
2016年 | 136篇 |
2015年 | 107篇 |
2014年 | 106篇 |
2013年 | 236篇 |
2012年 | 187篇 |
2011年 | 255篇 |
2010年 | 221篇 |
2009年 | 207篇 |
2008年 | 239篇 |
2007年 | 310篇 |
2006年 | 316篇 |
2005年 | 225篇 |
2004年 | 145篇 |
2003年 | 93篇 |
2002年 | 80篇 |
2001年 | 41篇 |
2000年 | 45篇 |
1999年 | 39篇 |
1998年 | 25篇 |
1997年 | 24篇 |
1996年 | 17篇 |
1995年 | 21篇 |
1994年 | 17篇 |
1993年 | 15篇 |
1992年 | 14篇 |
1991年 | 3篇 |
1990年 | 18篇 |
1989年 | 12篇 |
1988年 | 8篇 |
1987年 | 8篇 |
1986年 | 1篇 |
1985年 | 11篇 |
1984年 | 2篇 |
1983年 | 2篇 |
1982年 | 9篇 |
1981年 | 4篇 |
1980年 | 4篇 |
1979年 | 5篇 |
1974年 | 1篇 |
排序方式: 共有3965条查询结果,搜索用时 15 毫秒
921.
Emerging evidence suggests that a traumatic brain injury (TBI) in childhood may disrupt the ability to abstract the central meaning or gist-based memory from connected language (discourse). The current study adopts a novel approach to elucidate the role of immediate and working memory processes in producing a cohesive and coherent gist-based text in the form of a summary in children with mild and severe TBI as compared to typically developing children, ages 8-14 years at test. Both TBI groups showed decreased performance on a summary production task as well as retrieval of specific content from a long narrative. Working memory on n-back tasks was also impaired in children with severe TBI, whereas immediate memory performance for recall of a simple word list in both TBI groups was comparable to controls. Interestingly, working memory, but not simple immediate memory for a word list, was significantly correlated with summarization ability and ability to recall discourse content. 相似文献
922.
Ritualized behavior, intuitively recognizable by its stereotypy, rigidity, repetition, and apparent lack of rational motivation, is found in a variety of life conditions, customs, and everyday practices: in cultural rituals, whether religious or non-religious; in many children's complicated routines; in the pathology of obsessive-compulsive disorders (OCD); in normal adults around certain stages of the life-cycle, birthing in particular. Combining evidence from evolutionary anthropology, neuropsychology and neuroimaging, we propose an explanation of ritualized behavior in terms of an evolved Precaution System geared to the detection of and reaction to inferred threats to fitness. This system, distinct from fear-systems geared to respond to manifest danger, includes a repertoire of clues for potential danger as well as a repertoire of species-typical precautions. In OCD pathology, this system does not supply a negative feedback to the appraisal of potential threats, resulting in doubts about the proper performance of precautions, and repetition of action. Also, anxiety levels focus the attention on low-level gestural units of behavior rather than on the goal-related higher-level units normally used in parsing the action-flow. Normally automatized actions are submitted to cognitive control. This "swamps" working memory, an effect of which is a temporary relief from intrusions but also their long-term strengthening. Normal activation of this Precaution System explains intrusions and ritual behaviors in normal adults. Gradual calibration of the system occurs through childhood rituals. Cultural mimicry of this system's normal input makes cultural rituals attention-grabbing and compelling. A number of empirical predictions follow from this synthetic model. 相似文献
923.
Roese NJ Pennington GL Coleman J Janicki M Li NP Kenrick DT 《Personality & social psychology bulletin》2006,32(6):770-780
Few sex differences in regret or counterfactual thinking are evident in past research. The authors discovered a sex difference in regret that is both domain-specific (i.e., unique to romantic relationships) and interpretable within a convergence of theories of evolution and regulatory focus. Three studies showed that within romantic relationships, men emphasize regrets of inaction over action (which correspond to promotion vs. prevention goals, respectively), whereas women report regrets of inaction and action with equivalent frequency. Sex differences were not evident in other interpersonal regrets (friendship, parental, sibling interactions) and were not moderated by relationship status. Although the sex difference was evident in regrets centering on both sexual and nonsexual relationship aspects, it was substantially larger for sexual regrets. These findings underscore the utility of applying an evolutionary perspective to better understand goal-regulating, cognitive processes. 相似文献
924.
925.
Role of structure and component in judgments of visual similarity of Chinese characters 总被引:5,自引:0,他引:5
Yeh SL Li JL 《Journal of experimental psychology. Human perception and performance》2002,28(4):933-947
Skilled readers of Chinese participated in sorting and visual search experiments. The sorting results showed that under conditions of conflicting information about structure and component, subjective judgments of the visual similarity among characters were based on the characters' overall configurations (i.e., structures) rather than on the common components the characters possessed. In visual search, both structure and component contributed to the visual similarity reflected by the search efficiency. The steepest search slopes (thus the most similar target-distractor pairs) were found when the target and the distractor characters had the same structure and shared 1 common component, compared with when they had different structures and/or shared no common components. Results demonstrated that character structure plays a greater role in the visual similarity of Chinese characters than has been considered. 相似文献
926.
The emergence of competing modules in bilingualism 总被引:5,自引:0,他引:5
How does the brain manage to store and process multiple languages without encountering massive interference and transfer? Unless we believe that bilinguals live in two totally unconnected cognitive worlds, we would expect far more transfer than actually occurs. However, imaging and lesion studies have not provided consistent evidence for the strict neuronal separation predicted by the theory of modularity. We suggest that emergentist theory offers a promising alternative. It emphasizes the competitive interplay between multiple languages during childhood and by focusing on the dual action of competition and entrenchment, avoids the need to invoke a critical period to account for age of acquisition effects in second-language learning. This view instantiates the motto formulated by Elizabeth Bates that 'modules are made, not born.' 相似文献
927.
Three reading-time experiments in Chinese are reported that test contrasting views of how pronominal coreference is achieved. On the one hand, studies of reading time and eye tracking suggest that reduced expressions, such as the pronoun he, serve as critical links to integrate separate utterances into a coherent model of discourse. On the other hand, probe-word recognition studies indicate that full anaphoric expressions, such as a repeated name, are more readily interpreted than reduced expressions due to their rich lexical information, which provides effective cues to match the representation of the appropriate referent in memory. The results indicate that the ease of integrating the critical referent into a model of discourse is a function of the congruence of lexical, semantic, and discourse features conveyed by a syntactically prominent reduced expression within linguistic input. This pattern supports the view that a reduced expression is interpreted on-line and indeed plays a critical role in promoting discourse coherence by facilitating the semantic integration of separate utterances. 相似文献
928.
929.
艾勒悖论(Allais Paradox)另释 总被引:12,自引:1,他引:11
艾勒悖论违背了期望效用(Expected Utility)理论的独立性(independence)原则,成为欲推翻期望效用理论的杠杆。“齐当别”抉择模型不将风险决策行为看成是追求某种“最大期望值”的抉择反应,而将其看成是“最好可能结果之间的取舍”或者“最坏可能结果之间的取舍”。此项研究设计了一“判断”技术,并用此对艾勒设计的选择问题加以检验。实验表明,判断结果所示的“齐当别”策略能满意地对艾勒选择题作出解释。 相似文献
930.
转型期初中生心理健康与父母养育方式的研究 总被引:38,自引:1,他引:37
本研究采用《心理健康诊断量表》和《父母养育方式问卷》对196名初中生进行测量,探讨初中生心理健康与父母养育方式的影响因素及其相互之间的关系。结果表明,初中生的心理健康问题的检出率依次是自责倾向、恐怖倾向、冲动倾向和对人焦虑;性别因素只在心理健康的学习焦虑、养育方式上的父亲的惩罚、严厉、母亲的过干涉、过保护、父母的拒绝、否认等因素上表现出了显著差异;独生子女与非独生子女子女比较,在恐怖倾向以及惩罚、严厉的养育方式上存在显著差异;父母的文化程度、职业状况、离异、下岗等因素,只有母亲的职业状况因素对心理健康构成了影响;父母消极的教养方式将使学生的焦虑增加,母亲积极的教养方式将使学生的焦虑减少。 相似文献