History of silence affects auditory evoked fields regardless of intervening sounds: a magnetoencephalographic study
History of silence affects auditory evoked fields regardless of intervening sounds: a magnetoencephalographic study
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无论声音如何，沉默的历史都会影响听觉诱发场：一项脑磁图研究
DOI：
10.1111/ejn.12718
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
H. and R. Kakigi
中科院分区：
文献类型：
--
作者：
Okamoto;H. and R. Kakigi
已知听觉诱发的N1 m反应的幅度取决于刺激前静默间期的长度。然而，目前尚不清楚倒数第二个沉默间隔是否会影响由测试刺激引起的听觉诱发反应。在本研究中，我们使用脑磁图研究了在具有0.25-，0.5-，2-或4-s沉默间隔的四个连续音调的序列之后，具有1 s沉默间隔的四个连续音调引起的N1 m反应。结果表明，N1 m源强度随倒数第二个静默间期的缩短而减小。历史上的沉默有显着的影响N1米源强度。受沉默历史调制的人类大脑活动可能在编码包括沉默的一系列声音流（例如语音和音乐）中发挥重要作用。
The amplitudes of auditory evoked N1 m responses are known to depend on the length of the pre‐stimulus silent interval. However, it remains unknown whether pre‐penultimate silent intervals affect the auditory evoked responses elicited by test stimuli. In the present study, we investigated the N1 m responses elicited by a train of four successive tones with a silent interval of 1 s subsequent to that with a 0.25‐, 0.5‐, 2‐ or 4‐s silent interval using magnetoencephalography. The results obtained demonstrated that the N1 m source strength decreased as the pre‐penultimate silent interval became shorter. A history of silences had a significant impact on the N1 m source strength. Human brain activity that is modulated by silence history may play an important role in encoding a series of sound streams that include silences, such as speech and music.