| Presentation | 2006-05-26 Analysis of neuronal activity in the auditory cortex during sound duration discrimination Shuntaro OKAZAKI, Shin'ichiro KANOH, Shinji AGO, Mitsuru IWASAKI, Minoru TSUKADA, Kotaro OKA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Sound duration is an important attribute of auditory perception. We investigated the neuronal activity of the auditory cortex in anesthetized guinea pigs for clarifying the discrimination mechanisms of sound duration. In this experiment, sequences of auditory stimuli were presented repeatedly to the subjects. These stimuli consisted of noise bursts with different durations, each of which were presented serially about ten times. Neuronal responses to the stimuli following the stimuli with the different duration were compared with those to the stimuli following the stimuli with a same duration. It was shown that the former off responses exhibited a significantly higher firing rate despite of no difference of on response. This result corresponds to a finding of event-related potentials that do not change at the onset of duration increasing stimuli but change at the offset of them. Our study experimentally revealed a possibility that off response is involved in the sound duration discrimination. These suggested that auditory cortex played an important role on temporal auditory perception. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | unit recording / off response / sound duration / event-related potential / mismatch negativity (MMN) |
| Paper # | NC2006-2 |
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| Conference Information | |
| Committee | NC |
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| Conference Date | 2006/5/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Neurocomputing (NC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis of neuronal activity in the auditory cortex during sound duration discrimination |
| Sub Title (in English) | |
| Keyword(1) | unit recording |
| Keyword(2) | off response |
| Keyword(3) | sound duration |
| Keyword(4) | event-related potential |
| Keyword(5) | mismatch negativity (MMN) |
| 1st Author's Name | Shuntaro OKAZAKI |
| 1st Author's Affiliation | School of Fundamental Science and Technology, Graduate School of Keio University() |
| 2nd Author's Name | Shin'ichiro KANOH |
| 2nd Author's Affiliation | Department of Electronic Engineering, Graduate School of Engineering, Tohoku University |
| 3rd Author's Name | Shinji AGO |
| 3rd Author's Affiliation | Faculty of Engineering, Tamagawa University |
| 4th Author's Name | Mitsuru IWASAKI |
| 4th Author's Affiliation | Faculty of Engineering, Tamagawa University |
| 5th Author's Name | Minoru TSUKADA |
| 5th Author's Affiliation | Faculty of Engineering, Tamagawa University |
| 6th Author's Name | Kotaro OKA |
| 6th Author's Affiliation | School of Fundamental Science and Technology, Graduate School of Keio University |
| Date | 2006-05-26 |
| Paper # | NC2006-2 |
| Volume (vol) | vol.106 |
| Number (no) | 79 |
| Page | pp.pp.- |
| #Pages | 5 |
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