EVENT-RELATED POTENTIALS (ERPS) TO INTERRUPTIONS OF A STEADY RHYTHM
EVENT-RELATED POTENTIALS (ERPS) TO INTERRUPTIONS OF A STEADY RHYTHM
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DOI：
10.1111/j.1469-8986.1981.tb03043.x
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发表时间：
1981-01-01
期刊：
影响因子：
3.7
通讯作者：
HILLYARD, SA
中科院分区：
文献类型：
--
作者：
FORD, JM;HILLYARD, SA
听觉事件相关电位（ERP）记录从人的头皮谁收到重复序列的声音通过耳机。偶尔和不可预测的序列中的一些声音发生在一个较短或较长的刺激间隔（ISI）比平常。在实验（exp）1中，（ISI = 300 ms）引起了大的，NE-PE复合波是由NE波和PE波组成的双相ERP，NE波在130 ms左右，PE波在200 ms左右，NE-PE复合波比规则爆发波的N1-P2波大几倍在实验2中，当注意力集中在音调上时，由不频繁的早期音调引起的NE波的峰值幅度显著增加。在实验3中，当ISI从600-300 ms缩短时，规则序列（ISI为1200 ms）中的不常见早音的NE-PE复合波的幅度不变或实际上增加。
Auditory event-related potentials (ERP) were recorded from the scalps of persons who received repetitive sequences of sounds through earphones. Occasionally and upredictably some sounds in the sequence occurred at a shorter or longer interstimulus interval (ISI) than usual. In Experiment (exp) 1, premature noise bursts (ISI = 300 ms) elicited a large, biphasic ERP consisting of an NE component at about 130 ms and a PE wave at about 200 ms. The NE-PE complex was several times larger than the N1-P2 waves elicited by the regular bursts (ISI = 600 ms) or by delayed noise bursts (ISI = 600 ms) in a sequence where the regular ISI was 300 ms. In exp 2, the peak amplitude of the NE wave elicited by infrequent early tones was considerably increased when attention was directed toward the tones. In exp 3, the amplitude of the NE-PE complex to infrequent early tones in a regular sequence (ISI of 1200 ms) was unchanged or actually increased when ISI were shortened from 600-300 ms. It was proposed that the NE-PE complex belongs to a class of ERP that are specifically elicited by a mismatch event in a repetitive stimulus sequence.