Encoding of natural sounds by variance of the cortical local field potential
Encoding of natural sounds by variance of the cortical local field potential
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DOI：
10.1152/jn.00652.2015
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发表时间：
2016-05-01
影响因子：
2.5
通讯作者：
David, Stephen V.
中科院分区：
文献类型：
--
作者：
Ding, Nai;Simon, Jonathan Z.;David, Stephen V.
感官刺激的神经编码通常是通过对相同刺激重复的神经信号进行平均来研究的。然而，最近的研究表明，重复试验中神经活动的差异也可能取决于感觉输入。在这里，我们描述了清醒雪貂初级听觉皮质的局域场电位(LFP)的试间方差如何受到连续的自然声刺激的影响。我们发现，自然声音往往抑制低频LFP的试间方差(
Neural encoding of sensory stimuli is typically studied by averaging neural signals across repetitions of the same stimulus. However, recent work has suggested that the variance of neural activity across repeated trials can also depend on sensory inputs. Here we characterize how intertrial variance of the local field potential (LFP) in primary auditory cortex of awake ferrets is affected by continuous natural sound stimuli. We find that natural sounds often suppress the intertrial variance of low-frequency LFP (