A comparison of auditory and visual distraction effects:: behavioral and event-related indices
A comparison of auditory and visual distraction effects:: behavioral and event-related indices
复制标题
DOI：
10.1016/s0926-6410(00)00044-6
复制
发表时间：
2001-01-01
期刊：
影响因子：
--
通讯作者：
Schröger, E
中科院分区：
文献类型：
--
作者：
Berti, S;Schröger, E
音调频率与任务无关的不频繁偏差可能会分散我们对与任务相关的音调持续时间的处理的注意力。在听觉范式中获得的注意力分散表现为持续辨别和P3a反应时间的延长。P3a之后是一个晚期负性成分，这可能与分心后的重新定向过程有关（RON，重新定向消极）。本研究旨在比较听觉和相应的视觉分心范式的效果。分心引发了偏差相关的负性，并呈现出模态特异性分布。随后是P3a（刺激后350-ms）和RON（刺激后500-ms）。长时间的视觉刺激没有发生RON，这表明视觉和听觉分心是不同的。此外，结果表明，在这两个任务中，无关偏差被模态特异性过程检测到，从而引起注意转移。(C) 2001 Elsevier Science B.V.版权所有
Infrequent task-irrelevant deviations in the frequency of a tone may distract our attention away from the processing of task-relevant tone duration. The distraction obtained in the auditory paradigm is reflected in prolonged reaction times in duration discrimination and in P3a. The P3a is followed by a late negative component, which may be related to a re-orienting process following distraction (RON, re-orienting negativity). The present study aimed at comparing effects of the auditory and a corresponding visual distraction paradigm. Distraction elicited a deviance-related negativity which revealed a modality-specific distribution. It was followed by P3a (350-ms post-stimulus) and by RON (500-ms post-stimulus). RON did not occur with long-duration visual stimuli indicating a difference in visual and auditory distraction. Moreover, the results suggest that in both tasks irrelevant deviants were detected by modality-specific processes which caused an attention shift. (C) 2001 Elsevier Science B.V. All rights reserved.