Feature extraction from mixed odor stimuli based on spatio-temporal representation of odors in olfactory bulb
Feature extraction from mixed odor stimuli based on spatio-temporal representation of odors in olfactory bulb
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基于嗅球气味时空表示的混合气味刺激特征提取
DOI：
10.1109/icnn.1997.611691
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
T. Kambara
中科院分区：
文献类型：
--
作者：
O. Hoshino;Y. Kashimori;T. Kambara
为了阐明从混合气味刺激中提取嗅觉特征的神经机制，我们提出了一个模型，其中气味的每个组成分子被编码成嗅球中的空间放电模式，并且分子的混合比例的顺序被编码成空间模式的时间序列的顺序。也就是说，每种气味的质量和强度都被编码到嗅球动力学网络中的极限环吸引子中。这取决于什么样的极限环吸引子的应用程序下形成的混合气味刺激的组成气味强度的时间波动类型。当混合物中每种气味的波动与其他气味的波动无关时，每种气味被单独编码到每个吸引子中。然而，一些具有相干波动的气味被编码到单个极限环吸引子中，即被识别为单个特征。
In order to clarify the neural mechanism by which olfactory features are extracted from mixed odor stimuli, we present a model in which each constituent molecule of odor is encoded into a spatial firing pattern in the olfactory bulb and the order of mixing ratio of the molecule is coded into the order of temporal sequence of the spatial patterns. That is, quality and intensity of each odor are encoded into a limit cycle attractor in the dynamical network of olfactory bulb. It depends on types of temporal fluctuation of constituent odor intensity what kinds of limit cycle attractors are formed under application of mixed odor stimulation. When the fluctuation of each odor in the mixture is independent of those of the other odors, each odor is encoded separately into each attractor. However, some odors with coherent fluctuation are encoded into a single limit cycle attractor, that is, recognized as a single feature.
影响因子：
1.9
作者：
FREEMAN, WJ;DIPRISCO, GV
通讯作者：
DIPRISCO, GV
嗅觉脑电图与行为的关系：空间分析。
影响因子：
1.9
作者：
Freeman,WJ;Baird,B
通讯作者：
Baird,B