ERPs and deviance detection: Visual mismatch negativity to repeated visual stimuli
ERPs and deviance detection: Visual mismatch negativity to repeated visual stimuli
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DOI：
10.1016/j.neulet.2006.03.018
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发表时间：
2006-06-19
影响因子：
2.5
通讯作者：
Winkler, I
中科院分区：
文献类型：
--
作者：
Czigler, I;Weisz, J;Winkler, I
以往的研究表明，失配负性（MMN）事件相关电位（ERP）的视觉模拟是由于违反某些感觉规则而引起的。将物理变化与违反规则区分开来，我们发现视觉MMN （vMMN）是由违反规则引起的，而不涉及物理刺激变化。研究人员向成年参与者展示了一系列红黑和绿黑的棋盘图案，这些图案以RRGGRRGG的方式定期呈现。秩序。偶尔（p=0.1），这种规律会被额外重复一次刺激（如RRGGRRR）所打破。在100-140 ms和220-260 ms两个潜伏期范围内，不规则刺激重复诱发的erp与规律重复和规律变化诱发的erp相比呈负位移。而这两个负ERP差异中的第一个似乎对刺激重复本身敏感，第二个差异可以确定为vMMN对违反顺序规律的反应。因此，与听觉上的对应物类似，vMMN反映的是偏差（违反规则）过程，而不是变化检测过程。2006爱思唯尔爱尔兰有限公司版权所有。
Previous studies showed a visual analogue of the mismatch negativity (MMN) event-related potential (ERP), which is elicited by violating some sensory regularity. Separating physical change from violating a regularity, here we show that the visual MMN (vMMN) is elicited by regularity violations that do not involve physical stimulus change. Adult participants were presented with a series of red-black and green-black checkerboard patterns delivered regularly in an RRGGRRGG... order. Infrequently (p=0.1) this regularity was broken by repeating a stimulus one additional time (e.g. RRGGRRR). ERPs elicited by irregular stimulus repetitions were negatively displaced compared to those elicited both by regular repetition and regular change in two latency ranges: 100-140 ms and 220-260 ms. Whereas the first of these two negative ERP differences appears to be sensitive to stimulus repetition per se, the second difference can be identified as a vMMN response to violating the sequential regularity. Thus, similarly to its auditory counterpart, vMMN reflects deviance-(regularity-violation) rather than change-detection processes. (c) 2006 Elsevier Ireland Ltd. All rights reserved.