Olfactory Decoding Method Using Neural Spike Signals

This paper presents a novel method for inferring the odor based on neural activities observed from rats' main olfactory bulbs. Multi-channel extra-cellular single unit recordings are done by microwire electrodes (Tungsten, 50 μm, 32 channels) implanted in the mitral/tufted cell layers of the main ol...

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Veröffentlicht in:测试科学与仪器 2010, Vol.1 (1), p.81-85
1. Verfasser: Kyung-jin YOU Hyun-chool SHIN
Format: Artikel
Sprache:eng
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Zusammenfassung:This paper presents a novel method for inferring the odor based on neural activities observed from rats' main olfactory bulbs. Multi-channel extra-cellular single unit recordings are done by microwire electrodes (Tungsten, 50 μm, 32 channels) implanted in the mitral/tufted cell layers of the main olfactory bulb of the anesthetized rats to obtain neural responses to various odors. Neural responses as a key feature are measured by subtraction firing rates before stimulus from after. For odor inference, a decoding method is developed based on the ML estimation. The results show that the average decoding accuracy is about 100.0%, 96.0%, and 80.0% with three rats, respectively. This work has profound implications for a novel brain-machine interface system for odor inference.
ISSN:1674-8042
DOI:10.3969/j.issn.1674-8042.2010.01.17