Early scale effect and hemisphere superiority on the visual spatial attention: From the electrophysiological evidence of ERP
文献类型：期刊论文
| 作者 | Song, WQ ; Gao, Y; Luo, YJ; Luo Yuejia
|
| 刊名 | PROGRESS IN NATURAL SCIENCE
 |
| 出版日期 | 2004-10-01 |
| 卷号 | 14期号:10页码:875-879 |
| 关键词 | visual spatial attention cue scale spotlight effect hemisphere superiority event-related potential (ERP) |
| ISSN号 | 1002-0071 |
| 文献子类 | Article |
| 英文摘要 | The visual attention mechanism in the brain was studied among 16 young subjects through the precue-target visual search paradigm using the event-related potentials ( ERPs) technique, with the attentive ranges cued with different scales of Chinese words. The results showed that the response time was shortened as the cue scale was reduced, while the amplitudes of the P1 and N1 components of the ERPs increased. These results not only provided the electrophysiological evidence supporting the spotlight theory, but also indicated that the spotlight effect occurred during the early period of the selected attention. Two kinds of separation in the P2 effect were observed. One separation was between the P1 effect and P2 effect, which meant that additional computation was needed when the spatial scale of attention was enlarged; the other was between the left and right hemisphere of the P2 effect, which indicates that the attentive processing of the cue range mainly occurred in the left hemisphere.; The visual attention mechanism in the brain was studied among 16 young subjects through the precue-target visual search paradigm using the event-related potentials ( ERPs) technique, with the attentive ranges cued with different scales of Chinese words. The results showed that the response time was shortened as the cue scale was reduced, while the amplitudes of the P1 and N1 components of the ERPs increased. These results not only provided the electrophysiological evidence supporting the spotlight theory, but also indicated that the spotlight effect occurred during the early period of the selected attention. Two kinds of separation in the P2 effect were observed. One separation was between the P1 effect and P2 effect, which meant that additional computation was needed when the spatial scale of attention was enlarged; the other was between the left and right hemisphere of the P2 effect, which indicates that the attentive processing of the cue range mainly occurred in the left hemisphere. |
| 学科主题 | 认知神经科学 |
| 语种 | 英语 |
| WOS记录号 | WOS:000224688400006 |
| 公开日期 | 2011-08-22 |
| 源URL | [http://ir.psych.ac.cn/handle/311026/5349]  |
| 专题 | 心理研究所_中国科学院心理研究所回溯数据库(1956-2010) |
| 通讯作者 | Luo Yuejia |
| 作者单位 | 1.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing 100101, Peoples R China 2.SW China Normal Univ, Sch Psychol, Chongqing 400715, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, WQ,Gao, Y,Luo, YJ,et al. Early scale effect and hemisphere superiority on the visual spatial attention: From the electrophysiological evidence of ERP[J]. PROGRESS IN NATURAL SCIENCE,2004,14(10):875-879. |
| APA | Song, WQ,Gao, Y,Luo, YJ,&Luo Yuejia.(2004).Early scale effect and hemisphere superiority on the visual spatial attention: From the electrophysiological evidence of ERP.PROGRESS IN NATURAL SCIENCE,14(10),875-879. |
| MLA | Song, WQ,et al."Early scale effect and hemisphere superiority on the visual spatial attention: From the electrophysiological evidence of ERP".PROGRESS IN NATURAL SCIENCE 14.10(2004):875-879. |
入库方式： OAI收割
来源：心理研究所
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