Effects of the range and frequency of vibrations on the momentary riding comfort evaluation of a railway vehicle

When trains pass level-crossings, turnouts, and rail joints, they are momentarily subjected to extreme vibrations. In railway engineering, evaluation of the riding comfort under such occasional vibrations is called the momentary riding comfort evaluation, as distinct from the long-term evaluation, which addresses the riding comfort of passengers for certain lengths of train operation. In order to identify the effective vibrational characteristics of the momentary evaluation, an experiment was performed with a riding comfort simulator. Ten adult subjects for each condition, 80 in total, participated in the experiment. The effects of differences in the range of stimuli, frequency of each stimulus, and scores on a rating scale of discomfort were studied. Differences in the range and frequency affected the evaluation such that subjects tended to make a relative judgment on discomfort. They made almost an absolute judgment when the rating scale was well defined, with a small number of categories.     

Getting along or ahead: Effects of gender identity threat on communal and agentic self‐presentations

When faced with a threat to gender identity, people may try to restore their gender status by acting in a more gender‐typical manner. The present research investigated effects of gender identity threat on self‐presentations of agentic and communal traits in a Swedish and an Argentine sample (N = 242). Under threat (vs. affirmation), Swedish women deemphasized agentic traits (d [95% CI] = ?0.41 [?0.93, 0.11]), Argentine women increased their emphasis on communal traits (d = 0.44 [?0.08, 0.97]), and Argentine men increased their emphasis on agentic traits (d = 0.49 [?0.03, 1.01]). However, Swedish men did not appear to be affected by the threat regarding agentic (d = 0.04 [?0.47, 0.55]) or communal traits (d = 0.23 [?0.29, 0.74]). The findings are to be considered tentative. Implications for identity threat research are discussed.     

样例设计及呈现方式对学习代数运算规则的促进

为了考察"解释法"、"解释-标记法"两种样例设计方法及其"分步呈现"方式对六年级小学生学习代数运算规则的促进作用,以六年级小学生为被试,以"完全平方和"和"平方差"代数运算样例为学习材料,进行了3项实验研究。结果表明:(1)采用"解释法"设计"完全平方和"和"平方差"的代数运算样例,明显提高了代数运算规则的样例学习效果。(2)在"解释法"设计的样例上添加"运算标记"要运用适当,如果运用不当,特别是"运算标记"过多时,容易增加样例学习的认知负荷,从而降低标记的使用效果。(3)对于运算步骤和"运算标记"过多的样例,采用被试自主控制的"分步呈现"运算步骤的样例学习方式,其学习效果显著优于整体呈现样例的学习效果。     

Children view own-age faces qualitatively differently to other-age faces

Like most own-group biases in face recognition, the own-age bias (OAB) is thought to be based either on perceptual expertise or socio-cognitive motivational mechanisms [Wolff, N., Kemter, K., Schweinberger, S. R., &; Wiese, H. (2013). What drives social in-group biases in face recognition memory? ERP evidence from the own-gender bias. Social Cognitive and Affective Neuroscience. doi:10.1093/scan/nst024]. The present study employed a recognition paradigm with eye-tracking in order to assess whether participants actively viewed faces of their own-age differently to that of other-age faces. The results indicated a significant OAB (superior recognition for own-age relative to other-age faces), provided that they were upright, indicative of expertise being employed for the recognition of own-age faces. However, the eye-tracking results indicate that viewing other-age faces was qualitatively different to the viewing of own-age faces, with more nose fixations for other-age faces. These results are interpreted as supporting the socio-cognitive model of the OAB.     

呈现方式、自我效能感和成就动机对FOK判断影响的研究

以英汉配对词为实验材料探讨了呈现方式、自我效能感和成就动机对ＦＯＫ判断（Ｆｅｅｌｉｎｇ ｏｆ Ｋｎｏｗｉｎｇ）的影响,被试是１４４名大学生。实验结果表明：（１）呈现方式、自我效能感和成就动机均显著影响ＦＯＫ判断等级的高低和判断的准确性;（２）自我效能感和成就动机在影响ＦＤＫ判断方面有显著的交互作用,成就动机对ＦＤＫ判断的作用受自我效能感影响;（３）被试的回忆成绩、再认成绩和ＦＤＫ判断准确性之间均有显著的正相关,表明客体记忆与无记忆之间有较密切的联系。     

3~5岁儿童理解和使用空间表征的特点

以96名3~5儿童为被试,采用自编的儿童空间表征实验任务,在语言表征、模型表征和图画表征三种空间表征形式上,考察了儿童理解和使用空间表征的发展特点。结果表明:(1)总体上,3~5岁儿童理解空间表征的发展水平均显著高于使用空间表征的发展水平。(2)3~5岁儿童理解和使用空间表征的发展表现出显著的年龄效应。(3)从不同的空间表证形式来看,3岁儿童理解语言表征的能力与理解模型表征的能力之间差异显著,4岁儿童使用语言表征的能力与使用模型表征的能力之间的差异、使用语言表征的能力与使用图画表征的能力之间的差异、以及使用模型表征的能力与使用图画表征的能力之间的差异都显著,其余形式的空间表征理解之间的差异或空间表征使用之间的差异在各年龄段中均不显著。     

Children's Understanding of the Instrumental Value of Products and Brands

Gelman and Echelbarger (2019—this issue) provide a valuable discussion about children's understanding of the inferred or nonobvious features of objects, which has implications for how children value products. We further this conversation by examining how children value products and brands as a means for meeting important goals, which we refer to as instrumental valuation. Specifically, we examine developmental trends in instrumental valuation for three goals—self‐concept development, self‐presentation, and happiness. Across these areas, we find that children place greater value on products and brands for meeting these goals as they grow older, particularly during late childhood and early adolescence. We conclude with a discussion of how age differences in instrumental valuation add to the general conversation about how children of different ages value objects.