| Presentation | 2024-03-12 Exploring Motor Memory Structure for Hand Reaching from the Viewpoint of Segregation and Integration Akari Ogawa, Naotoshi Abekawa, Hiroaki Gomi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Two opposing motor skills, which normally prevent learning due to a memory interference, can be acquired when each is associated with the external-world or body states (context-dependent motor learning). While much research has intensively examined what states can reduce the interference, it has remained unclear how multiple memories acquired simultaneously relate to each other. Here we focused on the segregation and integration of multiple memories, and examined such structure using the visuomotor rotation paradigm. In the experiment, arm-reaching movements were classified into four trial-types with respect to the spatial combination of visual targets and gaze positions. Participants experienced opposing rotational perturbations (CW or CCW) on each trial-type. After learning, we de-adapted only one trial type, and subsequently examined the effect of this de-adaptation on the remaining other trial types. In this task design, if de-adaptation of one memory leads to de-adaptation of the other memory, these two memories are considered to be linked. Preliminary experiments revealed relatively complex patterns of memory structure, contrary to expectations based on task-optimal strategies. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | sensorimotor control / eye-hand coordination / implicit memory / human psychophysical experiments |
| Paper # | NC2023-55 |
| Date of Issue | 2024-03-04 (NC) |
| Conference Information | |
| Committee | NC / MBE |
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| Conference Date | 2024/3/11(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The Univ. of Tokyo |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Brain architecture, General |
| Chair | Hirokazu Tanaka(Tokyo City Univ.) / Hisashi Yoshida(Kinki Univ.) |
| Vice Chair | Jun Izawa(Univ. of Tsukub) / Akinori Ueno(Tokyo Denki Univ.) |
| Secretary | Jun Izawa(NTT) / Akinori Ueno(NAIST) |
| Assistant | Yoshimasa Tawatsuji(Waseda Univ.) / Takato Horii(Osaka Univ.) / Akihiko Tsukahara(Tokyo Denki Univ.) / Miki Kaneko(Osaka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Neurocomputing / Technical Committee on ME and Bio Cybernetics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Exploring Motor Memory Structure for Hand Reaching from the Viewpoint of Segregation and Integration |
| Sub Title (in English) | |
| Keyword(1) | sensorimotor control |
| Keyword(2) | eye-hand coordination |
| Keyword(3) | implicit memory |
| Keyword(4) | human psychophysical experiments |
| 1st Author's Name | Akari Ogawa |
| 1st Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 2nd Author's Name | Naotoshi Abekawa |
| 2nd Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 3rd Author's Name | Hiroaki Gomi |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| Date | 2024-03-12 |
| Paper # | NC2023-55 |
| Volume (vol) | vol.123 |
| Number (no) | NC-418 |
| Page | pp.pp.69-74(NC), |
| #Pages | 6 |
| Date of Issue | 2024-03-04 (NC) |