| Presentation | 2015-06-25 Influence of visual stimulus brightness on motor learning of oculomotor neural integrator Kohei Urase, Shuntaro Miki, Yutaka Hirata, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Our previous studies have shown that oculomotor learning is promoted under hyper-gravity environment in both goldfish and humans. This learning promotion was shown to occur during prism adaptation in humans, and oculomotor neural integrator (NI) adaptation in goldfish. An augmented gravitation input would significantly increase vestibular input to both the goldfish and human cerebellum. Thus, a working hypothesis for accelerated motor learning under hyper-gravity was envisioned to be an up-regulated Purkinje cell activity enabling more efficient modification of synaptic efficacy. If so, it should be promoted motor learning by causing steadily increased Purkinje cell activity by different stimuli. DC firing rate of Purkinje cells has been shown to become high in light than in dark. Presently we carried out the NI adaptation using two types of visual stimuli to induce motor learning in goldfish. Either white spots were displayed as a stimulus on a black background (Darker) or black spots on white background (Brighter). We compared the learning curves of NI adaptation. Accelerating effect was found in NI behavior with the Brighter than the Darker visual stimulus. This finding supports the hypothesis that Purkinje cell up-regulation alone may produce more efficient changes in synaptic efficacy contributing to the neural basis of motor learning. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Eye movement / Goldfish / Cerebellum / Promotion of motor learning |
| Paper # | NC2015-6 |
| Date of Issue | 2015-06-17 (NC) |
| Conference Information | |
| Committee | NC / IPSJ-BIO / IBISML / IPSJ-MPS |
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| Conference Date | 2015/6/23(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Institute of Science and Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Machine Learning Approach to Biodata Mining, and General |
| Chair | Toshimichi Saito(Hosei Univ.) / Masakazu Sekijima(東工大) / Takashi Washio(Osaka Univ.) / Hayaru Shouno(電通大) |
| Vice Chair | Shigeo Sato(Tohoku Univ.) / / Kenji Fukumizu(ISM) / Masashi Sugiyama(Tokyo Inst. of Tech.) |
| Secretary | Shigeo Sato(Kyushu Inst. of Tech.) / (Kyoto Sangyo Univ.) / Kenji Fukumizu(京大) / Masashi Sugiyama(お茶の水女子大) / (OIST) |
| Assistant | Hiroyuki Kanbara(Tokyo Inst. of Tech.) / Hisanao Akima(Tohoku Univ.) / / Koji Tsuda(Univ. of Tokyo) / Hisashi Kashima(Kyoto Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Neurocomputing / Special Interest Group on Bioinformatics and Genomics / Technical Committee on Infomation-Based Induction Sciences and Machine Learning / Special Interest Group on Mathematical Modeling and Problem Solving |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Influence of visual stimulus brightness on motor learning of oculomotor neural integrator |
| Sub Title (in English) | Comparison with the influence of gravity |
| Keyword(1) | Eye movement |
| Keyword(2) | Goldfish |
| Keyword(3) | Cerebellum |
| Keyword(4) | Promotion of motor learning |
| 1st Author's Name | Kohei Urase |
| 1st Author's Affiliation | Chubu University(Chubu Univ.) |
| 2nd Author's Name | Shuntaro Miki |
| 2nd Author's Affiliation | Chubu University(Chubu Univ.) |
| 3rd Author's Name | Yutaka Hirata |
| 3rd Author's Affiliation | Chubu University(Chubu Univ.) |
| Date | 2015-06-25 |
| Paper # | NC2015-6 |
| Volume (vol) | vol.115 |
| Number (no) | NC-111 |
| Page | pp.pp.69-72(NC), |
| #Pages | 4 |
| Date of Issue | 2015-06-17 (NC) |