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161.
Ge L Anzures G Wang Z Kelly DJ Pascalis O Quinn PC Slater AM Yang Z Lee K 《Journal of experimental child psychology》2008,101(2):124-136
Children’s recognition of familiar own-age peers was investigated. Chinese children (4-, 8-, and 14-year-olds) were asked to identify their classmates from photographs showing the entire face, the internal facial features only, the external facial features only, or the eyes, nose, or mouth only. Participants from all age groups were familiar with the faces used as stimuli for 1 academic year. The results showed that children from all age groups demonstrated an advantage for recognition of the internal facial features relative to their recognition of the external facial features. Thus, previous observations of a shift in reliance from external to internal facial features can be attributed to experience with faces rather than to age-related changes in face processing. 相似文献
162.
163.
面孔认知的反转效应已经得到了很多研究的证实.本研究使用结构信息改变的面孔、汉字和双关图作为实验材料.被试在经过面孔或者汉字的启动任务之后,可以将双关图知觉为面孔或者汉字.结果显示:在对面孔的相对辨认情景中,被试对反转面孔的反应时间显著长于正立面孔,存在反转效应.在对汉字的相对辨认情景中,正立和反转汉字的反应时间没有显著差异.这一结果表明反转效应不仅和结构信息有关,面孔专家化系统自上而下的激活对面孔反转效应起到重要的作用. 相似文献
164.
More efficient parameter estimates for factor analysis of ordinal variables by ridge generalized least squares
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Ke‐Hai Yuan Ge Jiang Ying Cheng 《The British journal of mathematical and statistical psychology》2017,70(3):525-564
Data in psychology are often collected using Likert‐type scales, and it has been shown that factor analysis of Likert‐type data is better performed on the polychoric correlation matrix than on the product‐moment covariance matrix, especially when the distributions of the observed variables are skewed. In theory, factor analysis of the polychoric correlation matrix is best conducted using generalized least squares with an asymptotically correct weight matrix (AGLS). However, simulation studies showed that both least squares (LS) and diagonally weighted least squares (DWLS) perform better than AGLS, and thus LS or DWLS is routinely used in practice. In either LS or DWLS, the associations among the polychoric correlation coefficients are completely ignored. To mend such a gap between statistical theory and empirical work, this paper proposes new methods, called ridge GLS, for factor analysis of ordinal data. Monte Carlo results show that, for a wide range of sample sizes, ridge GLS methods yield uniformly more accurate parameter estimates than existing methods (LS, DWLS, AGLS). A real‐data example indicates that estimates by ridge GLS are 9–20% more efficient than those by existing methods. Rescaled and adjusted test statistics as well as sandwich‐type standard errors following the ridge GLS methods also perform reasonably well. 相似文献
165.
Survey data often contain many variables. Structural equation modeling (SEM) is commonly used in analyzing such data. With typical nonnormally distributed data in practice, a rescaled statistic Trml proposed by Satorra and Bentler was recommended in the literature of SEM. However, Trml has been shown to be problematic when the sample size N is small and/or the number of variables p is large. There does not exist a reliable test statistic for SEM with small N or large p, especially with nonnormally distributed data. Following the principle of Bartlett correction, this article develops empirical corrections to Trml so that the mean of the empirically corrected statistics approximately equals the degrees of freedom of the nominal chi-square distribution. Results show that empirically corrected statistics control type I errors reasonably well even when N is smaller than 2p, where Trml may reject the correct model 100% even for normally distributed data. The application of the empirically corrected statistics is illustrated via a real data example. 相似文献
166.
We examined the accuracy of a highly-familiar-face representation in memory. In experiment 1, a famous portrait of Chairman Mao was digitally altered in terms of the distance between his two eyes, two pixels at a time. Mainland Chinese adults were shown the original or altered photos, one at a time, and asked to determine whether each was that of Chairman Mao or altered. Eastern Asian and Caucasian participants, who were unfamiliar with Mao's photo, were shown simultaneously the original face paired with the altered ones and asked to determine whether the photos were identical. The Mainland Chinese participants' memory threshold approximated the perceptual discrimination threshold of the Eastern Asian and Caucasian participants. Experiments 2 and 3 ruled out that the result of experiment I was due to artifacts of photographic alteration. The findings of the present study suggest that our memory of a very familiar face is highly accurate, at least in terms of the interocular configuration. The accuracy is perhaps only limited by the perceptual resolution capacity of our visual system. 相似文献
167.
采用3×3×2(年龄,材料,性别)三因素混合实验设计,按照学习成绩好、中、差分层随机选取小二、初二、大二学生被试各18名,其中男女各半,利用不同难度的材料,对被试提取自信度准确性的发展进行了考察。被试的判断等级与被试的记忆成绩之间的两点距随年龄而变化。而这种变化在不同难度间有不同的表现。(1)提取自信度准确性从小二到初二发展迅速,表现出显著差异;初二到大二阶段年龄差异不显著。材料难度对不同年级的被试提取自信度判断准确性的影响不同。材料难度越小,提取自信度准确性发展得越早。(2)提取自信度准确性发展的性别差异不显著。 相似文献
168.
The aim of this research was to test the hypothesis of a functional impairment in the automatic detection of deviant tones in 141 children born after 25 to 28 weeks of gestational age, as compared to 45 age-matched full-term control children. All of them were assessed at age 5 years 9 months and instructed to listen passively to two different pure tones (1000 vs 1200 Hz; 20 vs 80%) counterbalanced between ears. Rarity was thus defined by specific ear by tone combinations. The temporal N100 showed a clear contralateral functional organization of the central auditory pathway, especially for the left ear, but without group difference. By contrast, in full-term controls but not in premature children, the central N200 was specifically increased over frontal leads to rare stimuli as compared to frequent. Premature children demonstrated a lack of brain response when more complex processing integrating different informations was required. 相似文献
169.
两个实验探索群际威胁情境下表达性和能动性自我肯定对个体自我评价的影响。实验一诱发群际威胁,操作表达性自我肯定,测量被试的自我评价水平。实验二与实验一采用相同的方法,诱发群际威胁,操作能动性自我肯定,之后测量自我评价水平。两个实验均发现,群际威胁组的自我评价显著低于控制组;在群际威胁情境下,表达性自我肯定组和能动性自我肯定组的自我评价显著高于无自我肯定组。研究表明,群际威胁虽然是群体水平的感知,但会对个体水平的自我评价产生消极影响,通过社会认知基本维度进行自我肯定能有效缓解群际威胁对自我评价的消极影响。自我肯定对群际威胁与自我评价之间关系的作用机制还需要进一步探讨。 相似文献
170.