A modified oddball paradigm "cross-modal delayed response" and the research on mismatch negativity
文献类型：期刊论文
| 作者 | Wei, JH; Chan, TC; Luo, YJ ; Y. J. Luo
|
| 刊名 | BRAIN RESEARCH BULLETIN
 |
| 出版日期 | 2002-01-15 |
| 卷号 | 57期号:2页码:221-230 |
| 关键词 | event-related potentials (ERPs) mismatch negativity (MMN) selective attention cross-modal delayed response paradigm |
| ISSN号 | 0361-9230 |
| 文献子类 | Article |
| 英文摘要 | A modified oddball paradigm was developed to facilitate the focus of attention and to minimize target effects on deviant-related components of auditory and visual event-related potentials (ERPs) elicited with long interstimulus intervals. Subjects were required to focus on either the visual or auditory stimulus in each stimulus block. Deviant-related components were obtained by subtracting ERPs of the standard stimulus from that of the deviant stimulus for each modality with each stimulus condition. Results showed that auditory mismatch negativity (MMN) and a visual early deviant related negativity (DRN1) were elicited both when stimuli were attended and unattended. In contrast, N2b and P3 were produced only under the attended condition. In comparison of attended MMN and unattended MMN at three time windows (100-150 ms, 150-200 ms, and 200-250 ms) of MMN zone, different scalp distributions were shown, depending on the time windows. This result suggests that the attended auditory MMN is a mixed wave, consisting of genuine MMN, N2b, and possible P165. The effect of attention on MMN may stem from the contamination of these overlapping components. With the present paradigm, at least three sensory memory traces have to be maintained simultaneously in multiple sensory modalities to support automatic processing.; A modified oddball paradigm was developed to facilitate the focus of attention and to minimize target effects on deviant-related components of auditory and visual event-related potentials (ERPs) elicited with long interstimulus intervals. Subjects were required to focus on either the visual or auditory stimulus in each stimulus block. Deviant-related components were obtained by subtracting ERPs of the standard stimulus from that of the deviant stimulus for each modality with each stimulus condition. Results showed that auditory mismatch negativity (MMN) and a visual early deviant related negativity (DRN1) were elicited both when stimuli were attended and unattended. In contrast, N2b and P3 were produced only under the attended condition. In comparison of attended MMN and unattended MMN at three time windows (100-150 ms, 150-200 ms, and 200-250 ms) of MMN zone, different scalp distributions were shown, depending on the time windows. This result suggests that the attended auditory MMN is a mixed wave, consisting of genuine MMN, N2b, and possible P165. The effect of attention on MMN may stem from the contamination of these overlapping components. With the present paradigm, at least three sensory memory traces have to be maintained simultaneously in multiple sensory modalities to support automatic processing. (C) 2002 Elsevier Science Inc. |
| 学科主题 | 认知神经科学 |
| 语种 | 英语 |
| WOS记录号 | WOS:000173923300011 |
| 公开日期 | 2011-08-22 |
| 源URL | [http://ir.psych.ac.cn/handle/311026/5127]  |
| 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 | Y. J. Luo |
| 作者单位 | 1.Chinese Acad Sci, Inst Psychol, Lab Mental Hlth, Beijing 100101, Peoples R China 2.Chinese Univ Hong Kong, Sha Tin, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, JH,Chan, TC,Luo, YJ,et al. A modified oddball paradigm "cross-modal delayed response" and the research on mismatch negativity[J]. BRAIN RESEARCH BULLETIN,2002,57(2):221-230. |
| APA | Wei, JH,Chan, TC,Luo, YJ,&Y. J. Luo.(2002).A modified oddball paradigm "cross-modal delayed response" and the research on mismatch negativity.BRAIN RESEARCH BULLETIN,57(2),221-230. |
| MLA | Wei, JH,et al."A modified oddball paradigm "cross-modal delayed response" and the research on mismatch negativity".BRAIN RESEARCH BULLETIN 57.2(2002):221-230. |
入库方式： OAI收割
来源：心理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。