Beta (∼16 Hz) frequency neural oscillations mediate auditory sensory gating in humans
Beta (∼16 Hz) frequency neural oscillations mediate auditory sensory gating in humans
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DOI：
10.1111/j.1469-8986.2007.00624.x
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发表时间：
2008-03-01
期刊：
影响因子：
3.7
通讯作者：
Summerfelt, Ann
中科院分区：
文献类型：
--
作者：
Hong, L. Elliot;Buchanan, Robert W.;Summerfelt, Ann
大脑响应感官输入的振荡活动可能是代表感官信息处理不同阶段的信号。为了理解这些信号，确定与感觉和与感觉相关的认知处理相关的振荡的时间和频率的特异性至关重要。我们使用简单的配对听觉刺激范例进行感觉门控，并试图识别有助于感觉门控的特定时间和频率的振荡成分。使用离散小波分解技术，我们分离了由两个刺激中的第一个刺激引起的诱发电位的单次试验时频分量。然后使用回归分析来识别与抑制第二诱发电位反应最相关的成分。结果表明，β 振荡索引了与感觉门控强度相关的神经过程。
The brain's oscillatory activities in response to sensory input are likely signals representing different stages of sensory information processing. To understand these signals, it is critical to establish the specificity of the timing and frequency of oscillations associated with sensory and sensory-related cognitive processing. We used a simple paired auditory stimulus paradigm for sensory gating and sought to identify time- and frequency-specific oscillatory components contributing to sensory gating. Using a discrete wavelet decomposition technique we separated single-trial time-frequency components of evoked potentials elicited by the first of two stimuli. Regression analyses were then used to identify the components most relevant to the suppression of the second evoked potential response. The results suggested that beta oscillation indexed a neural process associated with the strength of sensory gating.