全文获取类型
收费全文 | 426篇 |
免费 | 14篇 |
出版年
2021年 | 5篇 |
2020年 | 7篇 |
2019年 | 6篇 |
2018年 | 11篇 |
2017年 | 15篇 |
2016年 | 12篇 |
2015年 | 7篇 |
2014年 | 6篇 |
2013年 | 94篇 |
2012年 | 13篇 |
2011年 | 13篇 |
2010年 | 12篇 |
2009年 | 8篇 |
2008年 | 18篇 |
2007年 | 11篇 |
2006年 | 16篇 |
2005年 | 7篇 |
2004年 | 9篇 |
2003年 | 5篇 |
2002年 | 6篇 |
2001年 | 16篇 |
2000年 | 8篇 |
1999年 | 7篇 |
1998年 | 6篇 |
1997年 | 5篇 |
1996年 | 4篇 |
1995年 | 5篇 |
1994年 | 6篇 |
1993年 | 4篇 |
1992年 | 7篇 |
1991年 | 7篇 |
1990年 | 4篇 |
1989年 | 4篇 |
1986年 | 5篇 |
1985年 | 5篇 |
1984年 | 5篇 |
1983年 | 5篇 |
1981年 | 3篇 |
1977年 | 4篇 |
1974年 | 3篇 |
1973年 | 4篇 |
1972年 | 3篇 |
1970年 | 3篇 |
1969年 | 2篇 |
1968年 | 3篇 |
1966年 | 2篇 |
1957年 | 3篇 |
1953年 | 2篇 |
1951年 | 4篇 |
1950年 | 3篇 |
排序方式: 共有440条查询结果,搜索用时 15 毫秒
41.
Elisabeth J. Ploran Ericka Rovira James C. Thompson Raja Parasuraman 《Applied cognitive psychology》2015,29(4):608-613
Studies of spatial navigation in real‐world settings have been limited to neighborhoods, campuses, and buildings. These locations have structural components, such as roads or hallways, which may direct navigation. The current study assessed navigational skills within a large‐scale forested environment that contained few pre‐established paths. Participants were asked to find flags using only a map and compass; dependent variables included target‐finding accuracy and efficiency. In addition, measurements of sense of direction, strategy, and working memory were taken to identify how these cognitive abilities influence performance. The results demonstrate the expected correlations between sense of direction and navigational success. An unexpected correlation between spatial working memory and navigational success was also found, which was the only significant predictor of performance when all measures were regressed together. These results suggest that studies should not forget basic cognitive abilities, which may predict success more than measures of sense of direction. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
42.
43.
44.
Espeseth T Greenwood PM Reinvang I Fjell AM Walhovd KB Westlye LT Wehling E Lundervold A Rootwelt H Parasuraman R 《Cognitive, affective & behavioral neuroscience》2006,6(1):31-43
In the present study, we investigated age-related changes in interactions between efficiency of neuronal repair mechanisms
and efficiency of cholinergic neurotransmission in the context of attentional orienting. In addition, we explored white matter
volume changes as possible neuronal underpinnings. A sample of 230 healthy middle-aged (53–64 years) and older (65–75 years)
adults was genotyped for polymorphisms of APOE and CHRNA4, a nicotinic receptor subunit gene. Participants were administered
a visuospatial attention task involving letter discrimination with location cues of varying validity. Genotype effects on
white matter volume were also investigated in a subset of participants who received MRI scans. APOE interacted with CHRNA4,
such that APOE-ε4 carriers who were also CHRNA4 TT homozygotes showed disproportionately slowed reaction time (RT) following
invalid location cues. The interaction was stronger in the middle-aged participants than in the older participants. There
was also a trend for individuals with combined APOE-ε4/CHRNA4 TT genotypes to show both lower white matter volume and slower
overall RT on the attention task. The interaction of a neurotransmission gene (CHRNA4) and a susceptibility gene (APOE) suggests
that the efficiency of neuronal repair mechanisms may modulate the cholinergic system to influence attentional function. 相似文献
45.
Roefs A Quaedackers L Werrij MQ Wolters G Havermans R Nederkoorn C van Breukelen G Jansen A 《Behaviour research and therapy》2006,44(5):715-736
This study investigated whether relatively automatic evaluations of food differ between situations and between obese people and lean controls. These evaluations were assessed in the affective priming paradigm (APP) -- a response latency based measure for associations. In Experiment 1, we either focused participants (33 obese and 26 lean controls) on the palatability (restaurant condition) or on the healthiness (health condition) of food, prior to the APP. Independent of weight-status, relatively automatic evaluations of food were based on palatability in the restaurant condition, and on health in the health condition. So, the current focus of attention can shape the way foods are evaluated relatively automatically. In Experiment 2, craving was induced in participants (27 obese and 29 lean controls). Unexpectedly, the craving induction did not achieve its goal of focusing on the palatability of food in general, but just for low-fat foods, possibly because of the health-emphasizing environment -- a hospital. Interestingly, obese people showed a stronger palatability priming effect with increasing levels of initial craving. For normal weight controls the effect was in the same direction, but missed significance. In our environment, palatability of food may be too salient, and health may not be salient enough, influencing automatic food-evaluations. 相似文献
46.
Children who are diagnosed with attention deficit hyperactivity disorder (or who engage in behavior consistent with such a diagnosis) are often prescribed stimulant medications for hyperactive or inattentive behaviors. However, the mechanisms by which stimulant medications affect individuals' behavior are rarely evaluated. The purpose of the current study was to evaluate the effects of stimulant medication on response allocation when antecedents and consequences were held constant and equated. Results indicated that the presence of an amphetamine medication (Adderall) influenced response allocation across two concurrently available responses while all other stimulus conditions were held constant. 相似文献
47.
Bruce AE Cole DA Dallaire DH Jacquez FM Pineda AQ LaGrange B 《Journal of abnormal child psychology》2006,34(3):310-322
In a sample of 299 children (grades 2, 4, and 6), we examined parenting and negative life events as predictors of depressive cognitions, specifically low self-perceived competence, depressive cognitive schemas, and depressogenic attributional style. We also examined developmental trends in these relations. Children completed measures of parenting, negative life events, and depressive cognitions. Parents also completed measures of parenting and negative life events. Consistent with our hypotheses, negative parenting and negative life events corresponded with higher levels of depressive cognitions, whereas positive parenting corresponded with lower levels of depressive cognitions. The relations between negative parenting and negative automatic thoughts were stronger for older children. Theoretical and practical implications are discussed. 相似文献
48.
First graders' literacy and self-regulation gains: The effect of individualizing student instruction
Carol McDonald Connor Claire Cameron Ponitz Q. Monét Travis Frederick J. Morrison 《Journal of School Psychology》2010,48(5):433-455
We examined the effect of individualizing student instruction (ISI; N = 445 students, 46 classrooms) on first graders' self-regulation gains compared to a business-as-usual control group. Self-regulation, conceptualized as a constellation of executive skills, was positively associated with academic development. We hypothesized that the ISI intervention's emphasis on teacher planning and organization, classroom management, and the opportunity for students to work independently and in small groups would promote students' self-regulation. We found no main effect of ISI on self-regulation gains. However, for students with weaker initial self-regulation, ISI was associated with greater self-regulation gains compared to peers in control classrooms. The ISI effect on self-regulation was greater when the intervention was more fully implemented. 相似文献
49.
Individual vocal recognition behaviors in songbirds provide an excellent framework for the investigation of comparative psychological and neurobiological mechanisms that support the perception and cognition of complex acoustic communication signals. To this end, the complex songs of European starlings have been studied extensively. Yet, several basic parameters of starling individual vocal recognition have not been assessed. Here we investigate the temporal extent of song information acquired by starlings during vocal recognition learning. We trained two groups of starlings using standard operant conditioning techniques to recognize several songs from two conspecific male singers. In the first experiment we tested their ability to maintain accurate recognition when presented with (1) random sequences of 1–12 motifs (stereotyped song components) drawn from the training songs, and (2) 0.1–12-s excerpts of continuous song drawn from the training songs. We found that song recognition improved monotonically as more vocal material is provided. In the second experiment, we systematically substituted continuous, varying length regions of white noise for portions of the training songs and again examined recognition accuracy. Recognition remained above chance levels for all noise substitutions tested (up to 91% of the training stimulus) although all but the smallest substitutions led to some decrement in song recognition. Overall, above chance recognition could be obtained with surprisingly few motifs, short excerpts of song, and in the absence of large portions of the training songs. These results suggest that starlings acquire a representation of song during individual vocal recognition learning that is robust to perturbations and distributed broadly over large portions of these complex acoustic sequences. 相似文献
50.
Y. Z. Liu X. T. Zu J. Lian L. Wang X. Q. Huang Z. G. Wang 《Philosophical Magazine Letters》2013,93(11):705-712
Ti–Al–Zr alloy has been oxidized at 360°C in alkaline steam at a pressure of 10.3?±?0.7?MPa. Cross-sectional transmission electron microscopy (TEM) observations indicated that the oxide scale of Ti–Al–Zr alloy was composed of outer and inner subscales, in which the outer layer consists of anatase-TiO2 and the inner layer a mixture of TiO and Ti2O. The thickness of the Ti2O, TiO and anatase-TiO2 were approximately 50, 100 and 400?nm, respectively. These results were confirmed by X-ray energy dispersive spectrometry (EDS) measurements. The enhanced corrosion of titanium alloys in LiOH solution is attributed to a high hexagonal Ti2O to tetragonal TiO2 phase transformation rate induced by the substitution of Li+ for Ti4+ in the oxide layer. 相似文献