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31.
Mondloch CJ Dobson KS Parsons J Maurer D 《Journal of experimental child psychology》2004,89(2):159-181
Children are nearly as sensitive as adults to some cues to facial identity (e.g., differences in the shape of internal features and the external contour), but children are much less sensitive to small differences in the spacing of facial features. To identify factors that contribute to this pattern, we compared 8-year-olds' sensitivity to spacing cues with that of adults under a variety of conditions. In the first two experiments, participants made same/different judgments about faces differing only in the spacing of facial features, with the variations being kept within natural limits. To measure the effect of attention, we reduced the salience of featural information by blurring faces and occluding features (Experiment 1). To measure the role of encoding speed and memory limitations, we presented pairs of faces simultaneously and for an unlimited time (Experiment 2). To determine whether participants' sensitivity would increase when spacing distortions were so extreme as to make the faces grotesque, we manipulated the spacing of features beyond normal limits and asked participants to rate each face on a "bizarreness" scale (Experiment 3). The results from the three experiments indicate that low salience, poor encoding efficiency, and limited memory can partially account for 8-year-olds' poor performance on face processing tasks that require sensitivity to the spacing of features, a kind of configural processing that underlies adults' expertise. However, even when the task is modified to compensate for these problems, children remain less sensitive than adults to the spacing of features. 相似文献
32.
Studies of patients with category-specific agnosia (CSA) have given rise to multiple theories of object recognition, most of which assume the existence of a stable, abstract semantic memory system. We applied an episodic view of memory to questions raised by CSA in a series of studies examining normal observers' recall of newly learned attributes of familiar objects. Subjects first learned to associate arbitrarily assigned colors or textures to objects in a training phase, and then attempted to report the newly learned attribute of each object in a recall task. Our subjects' pattern of recall errors was similar both quantitatively and qualitatively to the identification deficits among patients with CSA for biological objects. Furthermore, errors tended to reflect conceptually and structurally based confusions. We suggest that object identification involves recruitment and integration of information across distributed episodic memories and that this process is susceptible to interference from objects that are structurally similar and conceptually related. 相似文献
33.
A robust finding in the cross-cultural research is that people's memories for faces of their own race are superior to their memories for other-race faces. However, the mechanisms underlying the own-race effect have not been well defined. In this study, a holistic explanation was examined in which Caucasian and Asian participants were asked to recognize features of Caucasian and Asian faces presented in isolation and in the whole face. The main finding was that Caucasian participants recognized own-race faces more holistically than Asian faces whereas Asian participants demonstrated holistic recognition for both own-race and other-race faces. The differences in holistic recognition between Caucasian and Asian participants mirrored differences in their relative experience with own-race and other-race faces. These results suggest that the own-race effect may arise from the holistic recognition of faces from a highly familiar racial group. 相似文献
34.
The recognition potential: An ERP index of lexical access 总被引:6,自引:0,他引:6
Recognition potential (RP) is a brain electrical response that appears when a subject views recognizable images of words. However, it has yet to be determined whether the processes reflected by RP are related to orthographic or to semantic analysis. This study aimed to resolve this question by studying the RP evoked by orthographically correct stimuli that were devoid of meaning. Results showed RP not only to this type of stimuli, but also to others achieving lower levels in the reading process. Strikingly, however, the RP amplitude significantly differed in parallel with the levels of the reading processes attained by the stimuli, the amplitude of the RP progressively increasing as the level approached the semantic one, which showed the highest amplitude. These results not only confirm the replicability of RP, but also its promise of potential usefulness in the study and assessment of language perception. 相似文献
35.
本实验旨在探索儿童对抽象图画情绪寓意敏感性的发展规律以及文化因素的影响。被试年龄跨度从 5岁至高中学生。根据被试利用形态、主题、情绪等图片特性作为识辨依据的特点来发现规律。儿童对抽象图画寓意敏感性的发展与表征水平相关。年幼儿童只能利用颜色或图形等单一信息维量进行判断 ,年长儿童及中学生可以综合利用形态、主题、情绪等多个维量判断。在寓意明确的图片识辨中 ,儿童对积极寓意的识辨成绩较优。在双关寓意的图片识辨中 ,儿童组倾向于选择具有积极寓意的线索 ,而中学生组会受到识辨经验的影响。文化与教育方式影响儿童对抽象图画情绪寓意的理解。中国幼教方式有助于儿童对图画认知与情绪成分的识辨。 相似文献
36.
Vicki M. Soukup Alfredo Bimbela Mya C. Schiess 《Journal of clinical psychology in medical settings》1999,6(3):287-293
In response to critiques regarding the psychometric limitations of the Warrington Recognition Memory Test for faces (RMT-F), the current study was conducted to examine the test-retest reliability and validity of the measure in a neurological sample. Forty adult outpatients, ages 35–81, were administered the RMT-F as part of their diagnostic exam. A second evaluation was conducted after an average interval of 7 months (range = 2–20 months). Results yielded a Pearson reliability coefficient of 0.81 (p < .001), indicating a clinically satisfactory index of stability. Correlations with other measures were conducted to examine convergent and divergent validity. Results indicate that the facial component of the RMT has adequate reliability for patients with established neurological disease, shows moderate correlations with other measures of complex visuospatial function, and shows no significant correlation with measures of verbal reasoning, visual problem-solving, or verbal fluency. These findings provide additional support for the clinical efficacy of this instrument for use in a diverse neurological patient sample. 相似文献
37.
This study investigated the face inversion effect in rhesus monkeys (Macaca mulatta). Face stimuli consisted of ten black-and-white examples of unfamiliar rhesus monkey faces, brown capuchin faces, and human
faces. Two non-face categories included ten examples of automobiles and abstract shapes. All stimuli were presented in a sequential
matching-to-sample format using an automated joystick-testing paradigm. Subjects performed significantly better on upright
than on inverted presentations of automobiles, rhesus monkey and capuchin faces, but not human faces or abstract shapes. These
results are inconsistent with data from humans and chimpanzees that show the inversion effect only for categories of stimuli
for which subjects have developed expertise. The inversion effect in rhesus monkeys does not appear to be face-specific, and
should therefore not be used as a marker of specialized face processing in this species.
Received: 18 November 1998 / Accepted after revision: 9 May 1999 相似文献
38.
When birds raised by another species become adults, they (if they are non-brood-parasitic species) usually attempt to mate
with birds of their foster species rather than with birds of their own species, a phenomenon called sexual imprinting. Avian
brood parasites lay their eggs in nests of other species (the hosts) that rear the young, but the problem of sexual imprinting
among brood parasites has generally been neglected, and brood parasites have been considered as an exception among birds.
Here, we show, with data from field observations and field experiments, firstly, that adult great spotted cuckoos Clamator glandarius sometimes maintain contact with both older nestling and fledgling cuckoos. Adult cuckoos visited parasitized nests during
the last days of the nestling period (5 observations) and, when parasitic chicks left the nest, adult cuckoos maintained contact
with the young (14 observations). Adults and fledgling cuckoos communicated vocally (5 observations), and an adult great spotted
cuckoo even fed a parasite fledgling in two cases. Secondly, when experimentally cross-fostered in nests of magpie Pica pica hosts outside the parasite breeding range (thus avoiding visual and acoustic communication with adult cuckoos), young cuckoos
did not learn to recognize their own species when only one cuckoo chick was introduced per nest, but they learnt to recognize
conspecifics when two cuckoos were reared together. This means that young great spotted cuckoos apparently must learn to recognize
conspecifics, that is, recognition is not innate. Social interactions between adult brood parasites and young have also been
reported in other brood parasites; thus, brood parasites are probably not an exception to the general phenomenon of imprinting,
and young brood parasites may need to be imprinted on conspecifics, although more studies on other brood parasite species
are needed to confirm this.
Received: 7 January 1999 / Accepted after revision: 27 February 1999 相似文献
39.
汉字词识别过程的形,音,义编码作用的研究 总被引:7,自引:0,他引:7
本文通过两个实验,采用汉字词形、音、义特征匹配任务,探讨了影响汉字词的形、音、义编码与提取方式的有关因素。实验一发现在速示条件下,对汉字词再认的成绩并不受字词的使用度的影响,反应时无明显变化,而主要受编码加工的深度影响。在形、音、义特征加工中,对音码的加工时间最长,再认的正确率最低;义码的加工时间较短,再认正确率最高;形码的反应时及再认成绩介于音码与义码之间。实验二在非速示条件下也获得了相同的结果。研究结果表明,在汉字词的形、音、义特征中,存在着编码加工深度的差异。 相似文献
40.
汉字识别中的部件加工:错觉性结合实验的证据 总被引:2,自引:0,他引:2
本研究用“错觉性结合”的实验范式探讨汉字识别中的部件加工。被试对两个刺激字之后出现的目标字进行再认。结果发现在速示条件下,目标字部件与刺激字的部件相同时(如目标字为“她”,而刺激字为“姓”及“地”),被试常把目标字误认为刺激字。这种错误再认率随字频及部件频率的升高而降低。此外,刺激字的排列方式不同于字的结构方式时,字频及部件频率的效应减弱。上述结果不但表明整字频率、字的空间组织因素影响汉字识别,更显示部件是汉字认知过程的一个重要加工层次。 相似文献