The N2 in go/no-go tasks reflects conflict monitoring not response inhibition
The N2 in go/no-go tasks reflects conflict monitoring not response inhibition
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DOI：
10.1016/j.bandc.2004.04.005
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发表时间：
2004-11-01
影响因子：
2.5
通讯作者：
van Boxtel, GJM
中科院分区：
文献类型：
--
作者：
Donkers, FCL;van Boxtel, GJM
通过比较包括反应抑制和反应冲突监测的GO/NO-GO任务和仅与冲突监测相关的GO/GO任务，研究了在GO/NO-GO任务中N_2的功能意义。对no-go刺激无反应，而对go刺激有最大力度的反应。GO刺激的相对频率(80%对50%)是不同的。在非去信号和去信号试验中，氮气都达到了峰值，在频繁(80%)去信号的情况下，这两种信号的幅度都更大。这些结果支持N2反映的是冲突监控而不是反应抑制的观点。(C)2004 Elsevier Inc.保留所有权利。
The functional significance of the N2 in go/no-go tasks was investigated by comparing electrophysiological data obtained from two tasks: a go/no-go task involving both response inhibition as well as response conflict monitoring, and a go/GO task associated with conflict monitoring only. No response was required to no-go stimuli, and a response with maximal force to GO stimuli. The relative frequency of the go stimuli (80% vs. 50%) was varied. The N2 peaked on both no-go and GO trials, with larger amplitudes for both signals when presented in a context of frequent (80%) go signals. These results support the idea that the N2 reflects conflict monitoring not response inhibition. (C) 2004 Elsevier Inc. All rights reserved.