| Presentation | 2014-09-26 Acquisition of predictive eye movement in response to a periodic optokinetic visual stimulation in human and fish Shuntaro MIKI, Kohei URASE, Robert BAKER, Yutaka HIRATA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The optokinetic response (OKR) of the eye is induced to follow a large field visual motion. The gain of the OKR (eye velocity / visual motion velocity) is about 0.6 at 1/8Hz in naive goldfish. If the same periodic visual stimulus is given continuously, the OKR gain increases up to 1.0. In addition to gain increase, goldfish acquires predictive OKR that is named period tuning (PT). Namely, after continuous exposure to a periodic visual motion, goldfish OKR velocity decreases as if it predicts the timing of the change in visual motion direction. Even if the animal is exposed to complete darkness after the acquisition of PT, its eye velocity follows the similar trajectory to that during training for a while without any visual stimulation. This eye movement in the dark may share a common mechanism with optokinetic after nystagmus (OKAN) that is also evoked in the dark after prolonged constant velocity visual stimulation, and considered to reflect characteristics of the velocity storage mechanism (VSM). To investigate the relationship between PT and VSM, we conducted a series of behavioural experiments in human, goldfish, carp, medaka, and zebrafish. We demonstrate that ability to acquire PT is highly dependent on OKAN. This result suggests that VSM is a key mechanism for PT. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | goldfish / zebrafish / Optokinetic response / OKAN / prediction / motor learning |
| Paper # | HIP2014-52 |
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| Conference Information | |
| Committee | HIP |
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| Conference Date | 2014/9/18(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Human Information Processing (HIP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Acquisition of predictive eye movement in response to a periodic optokinetic visual stimulation in human and fish |
| Sub Title (in English) | |
| Keyword(1) | goldfish |
| Keyword(2) | zebrafish |
| Keyword(3) | Optokinetic response |
| Keyword(4) | OKAN |
| Keyword(5) | prediction |
| Keyword(6) | motor learning |
| 1st Author's Name | Shuntaro MIKI |
| 1st Author's Affiliation | Chubu University College of Engineering() |
| 2nd Author's Name | Kohei URASE |
| 2nd Author's Affiliation | Chubu University College of Engineering |
| 3rd Author's Name | Robert BAKER |
| 3rd Author's Affiliation | New York University Medical School |
| 4th Author's Name | Yutaka HIRATA |
| 4th Author's Affiliation | Chubu University College of Engineering |
| Date | 2014-09-26 |
| Paper # | HIP2014-52 |
| Volume (vol) | vol.114 |
| Number (no) | 226 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |