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131.
本研究主要考查表面相似性效应和标签效应对60名3~5岁儿童数概念发展的影响。实验通过等量匹配任务和数量比较任务测查儿童数概念的发展情况,其中等量匹配任务和数量比较任务都包括了一致和不一致两种条件以考查表面相似性效应对儿童数概念的影响,并通过给物取数任务、给数取物任务和等量匹配任务与数量比较任务的关系测查儿童使用数字标签的能力对儿童数概念形成与发展的影响。结果表明:(1)4岁和5岁组儿童完成等量匹配任务和数量比较任务的正确率显著高于3岁组儿童;(2)儿童在一致条件下完成等量匹配和数量比较任务的正确率显著高于不一致条件的正确率,表明物体的高表面相似性有利于儿童数概念的形成;(3)擅长使用数字标签的儿童完成等量匹配任务和数量比较任务的次数超过几率水平,使用数字标签有利于儿童数概念的发展。 相似文献
132.
Linguistically similar neighbouring nations that differ in size are often asymmetrical in their attitudinal relations towards each other: Citizens of smaller nations tend to see larger nations as less likeable and less similar than vice versa. We hypothesized that the smaller nations' reaction is the consequence of a threatened identity due to its relative size combined with too much similarity on a vital part of its identity, namely language. To test this hypothesis, 832 high‐school students from six different ethnic/national entities (France, Germany, Austria, the French‐ and German‐speaking parts of Switzerland, the French‐ and Dutch‐speaking parts of Belgium, and The Netherlands) completed a questionnaire on liking and similarity ratings. The results—to a large extent—showed that differences in size, in combination with linguistic similarity with another nation, pose a threat to the identity of the smaller nation or ethnic group. Differences in size, in combination with linguistic similarity, were associated with asymmetries in mutual liking on one hand and asymmetrical perceptions of similarity to the other country on the other hand. The conclusions of this study are consistent with findings of earlier research and stress the importance of language for a nation's identity. Moreover, the findings support social identity theory as a useful theory for understanding intergroup and international relations. 相似文献
133.
Past research suggests that children begin to phonologically rehearse at around 7 years of age. Less is known regarding the development of refreshment, an attention-based maintenance mechanism. Therefore, the use of these two maintenance methods by 6- and 8-year-olds was assessed using memory span tasks that varied in their opportunities for maintenance activity. Experiment 1 showed that nonverbal processing impaired both groups’ performance to similar extents. Experiment 2 employed phonologically similar or dissimilar memory items and compared the effects of verbal versus nonverbal processing on recall. Both groups showed evidence of phonological maintenance under nonverbal processing but not under verbal processing. Furthermore, nonverbal processing again impaired recall. Verbal processing was also more detrimental to performance in 8-year-olds than in 6-year-olds. Together, the results suggest that nonverbal processing impairs recall by obstructing refreshment and that developmental change in maintenance between 6 and 8 years of age consists primarily of an increase in phonological rehearsal. 相似文献
134.
135.
The effects of similarity and liking in formal relationships between mentors and protégés 总被引:1,自引:0,他引:1
Melenie J. Lankau Christine M. Riordan Chris H. Thomas 《Journal of Vocational Behavior》2005,67(2):252-265
A longitudinal study of mentoring dyads was used to investigate the antecedents and consequences of liking in formal mentoring relationships. Demographic and deep-level similarity were examined as antecedents to liking in mentoring relationships. Following this, the association between the degree of liking and reports of mentoring functions provided was examined. Mentors and protégés differed in the similarity characteristics that impacted their perceptions of the mentoring relationship. Results also indicated that mentors’ level of liking for protégés was not related to protégés’ perceptions of mentoring functions received. Longitudinal data allowed examination of whether early perceptions of similarity predict final evaluations of mentoring functions. Analyses indicate that relationships change over time, further emphasizing the need to examine developmental relationships longitudinally. 相似文献
136.
Perceptions of intragroup and intergroup similarity were assessed in 1st grade (M = 6.78 years, SD = .42) and 4th grade (M = 9.79, SD = .51) boys and girls (N = 382) who attended either ethnically homogeneous or ethnically heterogeneous schools. Children's evaluations of same-race and cross-race friendships were also assessed. European-American children attending homogeneous and heterogeneous schools attributed greater homogeneity to the same-race Black dyads. European-American children attending homogeneous schools, furthermore, focused on skin color in their evaluations of similarity and friendship to a greater extent than did European-American and minority (i.e., African-American, Latin-American, Asian-American) children attending heterogeneous schools. Children attending heterogeneous schools were more positive about friendship in general than children attending homogeneous schools, suggesting that social experiences in school settings are an important context of children's intergroup contact experience. The findings indicate that children's intergroup contact influences their perceptions of similarity and reasoning about cross-race friendship. 相似文献
137.
本研究基于人格的交互作用理论,通过时间与金钱两种助人决策情景,设计两个实验考察了人际敏感性特质对个体助人决策的影响,以及决策角色与社会压力两种情境因素在其中的作用。结果发现:(1)相比低人际敏感性,高人际敏感性个体更容易做出助人决策;(2)相比低社会压力,高社会压力下,高人际敏感性比低人际敏感性个体捐助的金钱更多; (3)高社会压力下,相比低人际敏感性个体,高人际敏感性个体为朋友与陌生人决策时会捐助更多的金钱。研究表明:人际敏感性影响个体的助人决策,决策角色与社会压力会对不同人际敏感性个体的助人决策有不同程度的影响。 相似文献
138.
139.
Benjamin R. George 《Studia Logica》2006,84(3):425-449
The notions of finite and infinite second-order characterizability of cardinal and ordinal numbers are developed. Several
known results for the case of finite characterizability are extended to infinite characterizability, and investigations of
the second-order theory of ordinals lead to some observations about the Fraenkel-Carnap question for well-orders and about
the relationship between ordinal characterizability and ordinal arithmetic. The broader significance of cardinal characterizability
and the relationships between different notions of characterizability are also discussed.
AMS subject classification : 03B15 and 03C85
Presented by Melvin Fitting 相似文献
140.
采用整体检测的变化察觉范式,探讨客体的相似性对客体—空间型认知方式个体视觉工作记忆表征的影响。行为结果显示,在不相似客体的视觉工作记忆表征任务中,客体型者在长延时条件的成绩优于空间型者,而在相似客体的视觉工作记忆表征任务中,两者无差异;ERP结果显示,在不相似客体视觉工作记忆表征任务中,与客体型者相比,空间型者在大脑皮层诱发出更大的负SP。以上结果表明,客体型者比空间型者对不相似客体视觉工作记忆加工具有优势,其潜在机制可能在于,客体型者对不相似客体视觉工作记忆表征时的神经活动效能更高。 相似文献