时间知觉阈限的双脑不对称性

时间知觉阈限并非单个概念,而是依赖于不同判断标准在不同时间经验间的分层级的门槛,并可能对应着不同时距范围内时间信息加工的不同机制.研究用分视野呈现技术考察了大脑两半球在三种不同反应标准下测定的短时距刺激时间知觉阈限上的差异,结果表明:(1)三种反应标准和不同呈现方位条件下,极限法测定的时间知觉阈限存在显著差异,二因素的交互作用不显著;(2)就时间知觉阈限而言,左半球存在着时间信息加工上的相对优势;(3)"同时-非同时"的阈限最低,其次是"连续-分离"的阈限,最后是"先后顺序"的阈限.     

从“秦半两”到“通宝”——“天圆地方”宇宙观下的铜钱铸造

通过对于天圆地方宇宙观的提出及观念形成的探讨,论述了蕴含于其中的空间结构关系;探讨了具有天圆地方型制与深厚文化寓意的方孔铜钱货币符号的演变及铸造工艺,并由此阐释从秦半两到通宝铜钱铸造的天圆地方型制延续的文化动因与所发挥的政权、神权、货币符号体系集于一体的文化功能。     

Effect of Target Position and Target Task on Judge Sensitivity to Felt Rapport

The present studies investigated the effects of target context on judge sensitivity to target felt rapport. The results suggest that judge sensitivity may be increased by: (a) positioning the target to the judge's left so that the judgment task may benefit from the specialization of the right hemisphere for processing nonverbal behavior, and (b) assigning targets to a task unconstrained by social norms that allows for more spontaneous and revealing target behavior. These results have major implications for the way that interpersonal sensitivity and rapport research is conducted and for understanding interpersonal perception in everyday life.     

Hemispheric Visions and Border Divisions: Differential Decolonizations at the US National Museum of the American Indian

Abstract

While many populations have suffered unique forms of colonial oppression, what these varying populations seem to share is an understanding of the importance of community support and cultural continuity in the face of struggle. Drawing on notions of differential oppositional consciousness and decolonization, this article examines the US National Museum of the American Indian in Washington, DC in light of its efforts to represent a hemispheric indigeneity. The Our Lives gallery exhibit co-curated by the Campo Band of Kumeyaay Indians (whose aboriginal lands straddle the border between the US and Mexico) is analyzed alongside the author’s personal reflections of her encounters with the NMAI as a US Chicana/Latina subject. The article urges scholars to recognize how they have been differ entially positioned against power and, furthermore, to acknowledge how and when efforts to decolonize may result in the re-colonization of another already marginalized group. This project asserts that the strength of alliances may not always be built on sameness, but perhaps can be built out of differences.     

创造性生理基础研究

创造性的生理基础很复杂 ,关于创造性生理基础的研究集中在大脑脑皮质激活与脑半球不对称两个方面。研究发现 ,大脑脑皮质激活状态对创造性有影响 ,低水平的脑皮质激活 ,特别是低水平的前额叶激活 ,较有利于创造性 ;研究还发现 ,创造性和左右半球不对称活动有关 ,处于创造状态时 ,右半球相对要比左半球激活程度更高。