Event-related brain activity associated with auditory pattern processing
Event-related brain activity associated with auditory pattern processing
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DOI：
10.1097/00001756-199810260-00037
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发表时间：
1998-10-26
期刊：
影响因子：
1.7
通讯作者：
Picton, TW
中科院分区：
文献类型：
--
作者：
Alain, C;Cortese, F;Picton, TW
听觉系统的基本特性之一是能够分析复杂的时间模式。在这里，我们使用事件相关脑电位来研究与听觉模式处理相关的神经活动。参与者被呈现给参与者一个连续重复的四个音调序列，其中一个音调的频率或时序几乎没有变化。频率和时间偏差的声音都会产生失配负波(MMN)，该波在中线中央电极位置达到峰值，在颞叶和枕叶下方位置极性反转，与颞上平面的产生相一致。MMN头皮地形图对于频率和时间偏差的刺激是相似的，这表明听觉模式元素之间的光谱和时间关系都编码在统一的记忆轨迹中。(C)1998年，Lippincott Williams&Wilkins。
ONE of the basic properties of the auditory system is the ability to analyse complex temporal patterns. Here, we investigated the neural activity associated with auditory pattern processing using event-related brain potentials. Participants were presented with a continuously repeating sequence of four tones with rare changes in either the frequency or timing of one of the tones. Both frequency- and time-deviant sounds generated mismatch negativity (MMN) waves that peaked at midline central electrode sites and inverted in polarity at inferior temporal and occipital sites, consistent with generators in the supratemporal plane. The MMN scalp topography was similar for the frequency- and time-deviant stimuli, suggesting that both spectral and temporal relations among elements of an auditory pattern are encoded in a unified memory trace. (C) 1998 Lippincott Williams & Wilkins.