| Asymmetry between the upper and lower visual fields： An event-related potential study |
| |
| 作者姓名： | QU Zhe SONG Yan DING Yulong |
| |
| 作者单位： | [1]Key Laboratory of Cognitive Science, Graduate School, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100039, China [2]Department of Psychology, Sun Yat-Sen University, Guangzhou510275, China [3]State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing 100875, China |
| |
| 基金项目： | Acknowledgements We thank Dr. Gao Dingguo and Rao Hengyi for their valuable comments. This work was supported by the National Natural Science Foundation of China （Grant Nos. 697900800, 30200079, 30400133 ＆ 30570605） and the Initiative Scientific Research Foundation of Sun Yat-Sen University 100-people Program （Grant No. 3253187）. |
| |
| 摘 要： | ASYMMETRIES OF HUMAN VISUAL INFORMATION PROCESS- ING ACROSS VISUAL FIELDS HAVE BEEN AN INTERESTING ISSUE IN COGNITIVE PSYCHOLOGY AND NEUROSCIENCE. IN ADDITION TO INVESTIGATIONS OF THE ASYMMETRIES BETWEEN THE LEFT AND RIGHT VISUAL FIELDS THAT ARE BELIEVED …
|
| 关 键 词： | 事件相关性电位 电生理学 视觉信息处理 不对称性 上视野 下视野 |
| 收稿时间： | 2005-09-21 |
| 修稿时间： | 2005-09-212005-12-14 |
Asymmetry between the upper and lower visual fields: An event-related potential study |
| |
| QU Zhe SONG Yan DING Yulong.Asymmetry between the upper and lower visual fields: An event-related potential study[J].Chinese Science Bulletin,2006,51(5):536-541. |
| |
| Authors: | Zhe Qu Yan Song Yulong Ding |
| |
| Institution: | (1) Key Laboratory of Cognitive Science, Graduate School, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100039, China;(2) Department of Psychology, Sun Yat-Sen University, Guangzhou, 510275, China;(3) State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, 100875, China |
| |
| Abstract: | Using event-related potentials (ERPs), the present study examined the electrophysiological and attentional asymmetries between the upper vis- ual field (UVF) and the lower visual field (LVF) while subjects were performing a target detecting task. The early ERP components showed a smaller P1 and a larger N1 in LVF than in UVF over the oc- cipito-parietal areas, while the late components (N2 and P3) showed no difference between the two visual fields. In addition, the attention enhancement on the P1 component was greater in UVF than in LVF. These findings suggest that the function of the UVF and LVF differ in terms of both early visual informa- tion processing and attentional modulation. |
| |
| Keywords: | asymmetry upper visual field lower visual field event-related potentials attentional modulation |
| 本文献已被 维普 万方数据 SpringerLink 等数据库收录！ |
| 点击此处可从《中国科学通报(英文版)》浏览原始摘要信息 |
| 点击此处可从《中国科学通报(英文版)》下载免费的PDF全文 |
