Effects of white noise duration on somatosensory event-related potentials
Effects of white noise duration on somatosensory event-related potentials
复制标题
白噪声持续时间对体感事件相关电位的影响
DOI：
10.1097/wnr.0000000000001157
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发表时间：
2019
期刊：
影响因子：
1.7
通讯作者：
Nakata H
中科院分区：
文献类型：
--
作者：
Ohbayashi W;Kakigi R;Nakata H
暴露于听觉白噪声已被证明可以促进认知功能。这种现象称为随机共振。本研究探讨了白噪声持续时间对行为数据 [反应时间 (RT)、RT 的 SD 和错误率] 以及体感 Go/No-go 范式中事件相关电位的 N140 和 P300 分量的影响。以相同的概率分别向左手的第二个或第五个数字提供“通过”或“不通过”刺激。在记录事件相关电位之前，参与者听到三种不同的白噪声持续时间（1、3 和 5 分钟条件），并在听白噪声时执行体感 Go/No-go 范例。 5 分钟和 3 分钟条件下的 RT 明显短于 1 分钟条件下的 RT，而 RT 的 SD 和错误率保持不变。 Go-P300的峰值潜伏期在5分钟条件下最短。白噪声不影响 N140 的峰值潜伏期或 N140 或 P300 的峰值幅度。我们的结果表明，5 分钟的白噪声暴露加速了 Go-P300 的 RT 和延迟，反映了响应执行处理的神经激活的变化。
Exposure to auditory white noise has been shown to facilitate cognitive function. This phenomenon is called stochastic resonance. The present study examined the effects of white noise duration on behavioral data [reaction time (RT), the SD of RT, and error rates] and the N140 and P300 components of event-related potentials in somatosensory Go/No-go paradigms. A Go or No-go stimulus was presented to the second or fifth digit of the left hand, respectively, at the same probability. Before recording event-related potentials, participants heard three different white noise durations (1, 3, and 5-min conditions), and performed somatosensory Go/No-go paradigms while listening to white noise. RT was significantly shorter under the 5 and 3-min conditions than under the 1-min condition, whereas SD of RT and error rates remained unchanged. The peak latency of Go-P300 was the shortest under the 5-min condition. White noise did not affect the peak latency of N140 or the peak amplitude of N140 or P300. Our results suggest that 5-min white noise exposure accelerated RT and the latency of Go-P300, reflecting changes in the neural activation of response execution processing.