RELATION OF OLFACTORY EEG TO BEHAVIOR - SPATIAL-ANALYSIS
RELATION OF OLFACTORY EEG TO BEHAVIOR - SPATIAL-ANALYSIS
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DOI：
10.1037/0735-7044.101.3.393
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发表时间：
1987-06-01
影响因子：
1.9
通讯作者：
BAIRD, B
中科院分区：
文献类型：
--
作者：
FREEMAN, WJ;BAIRD, B
气味特异性模式的二尖瓣细胞活动在气味歧视的假设可能会发现在相应的空间模式的脑电图（EEG）振幅超过手术可访问的部分的延髓表面进行了测试，在兔子与长期植入电极阵列。的延髓EEG的空间频谱推导和预测的颗粒细胞发生器的频谱进行比较。设计空间滤波器来识别、增强或去除颗粒细胞对EEG的贡献。将空间去卷积应用于过滤的颗粒细胞活动模式以校正由体积传导引起的失真。结果表明，灯泡产生的气味特定的空间模式，训练区分两种气味的兔子。气味特定的信息是不能本地化的通道的子集。这表明，球的辨别输出涉及整个结构，即使受体输入被传递到有限的二尖瓣细胞亚群。
The hypothesis that odor-specific patterns of mitral cell activity during odor discrimination might be found in the corresponding spatial patterns of electroencephalogram (EEG) amplitude over a surgically accessible segment of the bulbar surface was tested in rabbits with chronically implanted electrode arrays. The spatial spectrum of the bulbar EEG was derived and compared with the spectrum predicted for the granule cell generator. Spatial filters were devised to identify, enhance, or remove the granule cell contribution to the EEG. Spatial deconvolution was applied to the filtered granule cell activity patterns to correct for distortion caused by volume conduction. The results indicated that the bulb generated odor-specific spatial patterns in rabbits trained to discriminate between two odors. The odor-specific information was not localizable to subsets of channels. This suggested that the discriminative output of the bulb involved the entire structure, even though the receptor input was delivered to limited subsets of mitral cells.