全文获取类型
收费全文 | 1035篇 |
免费 | 137篇 |
国内免费 | 167篇 |
出版年
2024年 | 1篇 |
2023年 | 24篇 |
2022年 | 25篇 |
2021年 | 50篇 |
2020年 | 54篇 |
2019年 | 71篇 |
2018年 | 62篇 |
2017年 | 78篇 |
2016年 | 59篇 |
2015年 | 38篇 |
2014年 | 56篇 |
2013年 | 190篇 |
2012年 | 28篇 |
2011年 | 68篇 |
2010年 | 44篇 |
2009年 | 61篇 |
2008年 | 54篇 |
2007年 | 67篇 |
2006年 | 53篇 |
2005年 | 44篇 |
2004年 | 44篇 |
2003年 | 21篇 |
2002年 | 18篇 |
2001年 | 18篇 |
2000年 | 13篇 |
1999年 | 9篇 |
1998年 | 4篇 |
1997年 | 6篇 |
1996年 | 12篇 |
1995年 | 10篇 |
1994年 | 9篇 |
1993年 | 4篇 |
1992年 | 7篇 |
1991年 | 1篇 |
1990年 | 4篇 |
1989年 | 3篇 |
1988年 | 3篇 |
1987年 | 2篇 |
1986年 | 1篇 |
1985年 | 6篇 |
1984年 | 4篇 |
1983年 | 1篇 |
1981年 | 3篇 |
1980年 | 2篇 |
1979年 | 1篇 |
1978年 | 2篇 |
1977年 | 2篇 |
1976年 | 1篇 |
1975年 | 1篇 |
排序方式: 共有1339条查询结果,搜索用时 31 毫秒
991.
Most papers using experimental data find that a significant number of agents are not utility function maximizers. Using three experimental datasets, we provide empirical evidence that these violations of utility function maximizing behavior are simply generated by a violation of the preference transitivity axiom. Moreover, we find that 97% of agents’ behavior is consistent with maximization of a generalized utility function called a variable intervals function (which corresponds to a numerical representation of complete-acyclic preferences). 相似文献
992.
Jerger S Damian MF Spence MJ Tye-Murray N Abdi H 《Journal of experimental child psychology》2009,102(1):40-434
This research developed a multimodal picture-word task for assessing the influence of visual speech on phonological processing by 100 children between 4 and 14 years of age. We assessed how manipulation of seemingly to-be-ignored auditory (A) and audiovisual (AV) phonological distractors affected picture naming without participants consciously trying to respond to the manipulation. Results varied in complex ways as a function of age and type and modality of distractors. Results for congruent AV distractors yielded an inverted U-shaped function with a significant influence of visual speech in 4-year-olds and 10- to 14-year-olds but not in 5- to 9-year-olds. In concert with dynamic systems theory, we proposed that the temporary loss of sensitivity to visual speech was reflecting reorganization of relevant knowledge and processing subsystems, particularly phonology. We speculated that reorganization may be associated with (a) formal literacy instruction and (b) developmental changes in multimodal processing and auditory perceptual, linguistic, and cognitive skills. 相似文献
993.
Hugdahl K Westerhausen R Alho K Medvedev S Laine M Hämäläinen H 《Scandinavian journal of psychology》2009,50(1):11-22
In this article we present a theoretical approach to cognitive control and attention modulation, as well as review studies related to such a view, using an auditory task based on dichotic presentations of simple consonant-vowel syllables. The reviewed work comes out of joint research efforts by the 'Attention-node' at the 'Nordic Center of Excellence in Cognitive Control'. We suggest a new way of defining degrees of cognitive control based on systematically varying the stimulus intensity of the right or left ear dichotic stimulus, thus parametrically varying the degree of stimulus interference and conflict when assessing the amount of cognitive control necessary to resolve the interference. We first present an overview and review of previous studies using the so-called "forced-attention" dichotic listening paradigm. We then present behavioral and neuroimaging data to explore the suggested cognitive control model, with examples from normal adults, clinical and special ability groups. 相似文献
994.
Soinne L Helenius J Tikkala I Saimanen E Salonen O Hietanen M Lindsberg PJ Kaste M Tatlisumak T 《Brain and cognition》2009,69(2):353-359
Surgery of a high-grade carotid stenosis is evidence-based stroke prevention. Also cognitive effects are reported after carotid endarterectomy (CEA): both deterioration and improvement, the former attributed to perioperative complications and the latter often to learning effect. By imaging, brain perfusion and diffusion changes were shown in subjects with a high-grade stenosis undergoing CEA. We wanted to find out if the cognition of patients undergoing CEA display postoperative worsening or true improvement in association with findings in serial MR imaging. The patients had a poorer overall cognition than healthy matched controls. The cerebral hemisphere ipsilateral to the stenosis had higher diffusion and more sluggish perfusion leading to perfusion deficits. These asymmetries were abolished by CEA. Postoperatively, the patients showed a trend for cognitive worsening, most often attentional, but over months, the group performance improved similarly to the controls. Still, lower baseline perfusion was associated with a greater cognitive improvement, most clearly in executive functions. Consequently, despite the risk for transient decline, true cognitive benefit by CEA seems possible. 相似文献
995.
The current study examined the contribution of brain areas affected by Parkinson's disease (PD) to sequence learning, with a specific focus on response-related processes, spatial attentional control, and executive functioning. Patients with mild PD, patients with moderate PD, and healthy age-matched participants performed three tasks-a sequence learning task with a spatial pattern that was incidental to response selection, a spatial cuing task, and neuropsychological tests of executive function. Whereas moderate PD patients failed to show significant sequence learning, mild PD patients performed comparably with controls. Neither group of PD patients was impaired in the control of spatial attention. Sequence learning was correlated with neuropsychological measures of executive function but not with the ability to control spatial attention. These results suggest that the contribution of the brain areas affected by PD to sequence learning extends beyond motor learning to include the learning of perceptual patterns and involves executive function, including cognitive flexibility and set shifting. 相似文献
996.
6~11岁儿童执行功能发展研究 总被引:7,自引:0,他引:7
以168名6~11岁儿童为被试,使用9种执行功能任务研究了儿童三种执行功能成分的发展,三种执行功能是,抑制(Inhibition)、转换(Shifting)和刷新(Updating),结果发现:整个儿童阶段,三种执行功能一直表现出随年龄递增而增长的趋势;不同的执行功能表现出不同的发展速率,其中抑制控制大约在6~7岁表现出一个快速的增长期,记忆刷新从7岁到10岁一直呈线性增长,转换表现出两个快速增长期,第一个快速增长则发生在7~8岁之间,第二个快速增长则发生在9-10岁之间,三种执行功能的发展趋势到大约10岁后趋于平缓,10岁和11岁儿童的表现没有显著性差异;所有执行功能任务测量中没有发现性别主效应,年龄和性别的交互作用不显著。 相似文献
997.
Chronic use of amphetamines and/or opiates has been associated with a wide range of cognitive deficits, involving domains
of attention, inhibitory control, planning, decision-making, learning and memory. Although both amphetamine and opiate users
show marked impairment in various aspects of cognitive function, the impairment profile is distinctly different according
to the substance of abuse. In light of evidence showing that cognitive impairment in drug users has a negative impact on treatment
engagement and efficacy, we review substance-specific deficits on executive and memory function, and discuss possibilities
to address these during treatment intervention. 相似文献
998.
999.
执行功能与攻击行为关系的研究 总被引:3,自引:1,他引:2
攻击行为产生的原因十分复杂,受当今认知神经科学的影响,心理学研究人员从执行功能的角度来探讨攻击行为。现有的研究主要从心理学、流行病学、行为神经学、神经心理学和神经成像角度,考察和分析二者内在的关联,结果表明在暴力犯罪、反社会人格、杀人犯、精神病患者、少年犯、注意缺陷-多动障碍等群体,执行功能与攻击行为间存在很强的负向关联。将来的研究需要拓宽研究被试群体,深入考察内在的脑机制,制定恰当的攻击行为干预方法。 相似文献
1000.
Impairments in either “cool” or “hot” processes may represent two pathways to deficient decision-making. Whereas cool processes are associated with cognitive and rational decisions, hot processes are associated with emotional, affective, and visceral processes. In this study, 168 boys were administered a card-playing task at ages 13 and 14 years to assess response perseveration. This task was designed to initially reward playing and gradually associate playing with punishment. Measures of subjective ordering (cool processes) and neuroticism (hot processes) at age 13 years were used to examine how these individual characteristics relate to perseveration over time. A decrease in perseveration from age 13 to 14 was associated with cool processes whereas hot processes were associated with response perseveration only over time. A complementary but simultaneous assessment of cool and hot processes, such as neuropsychological and personality tests, could facilitate treatment planning of children with behavioral problems. 相似文献