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Hokkaido University Collection of Scholarly and Academic Papers >
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Distinct neural representations of hand movement direction between motor imagery and execution in the presupplementary motor area
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| Title: | Distinct neural representations of hand movement direction between motor imagery and execution in the presupplementary motor area |
| Authors: | Yang, Yuxiang Browse this author | | Yang, Huixiang Browse this author | | Imai, Fumihito Browse this author →KAKEN DB | | Ogawa, Kenji Browse this author →KAKEN DB |
| Keywords: | Motor imagery | | Motor execution | | FMRI | | Multivoxel classification analysis | | Representational similarity analysis | | Presupplementary motor area |
| Issue Date: | Jun-2023 |
| Publisher: | Elsevier |
| Journal Title: | Neuroscience research |
| Volume: | 191 |
| Start Page: | 57 |
| End Page: | 65 |
| Publisher DOI: | 10.1016/j.neures.2023.01.001 |
| Abstract: | Motor simulation theory proposes a functional equivalence between motor execution (ME) and its simulation, suggesting that motor imagery (MI) is the self-intentioned simulation of one's actions. This study used functional magnetic resonance imaging (fMRI) with multivoxel pattern analysis to test whether the direction of hand movement is represented with a similar neural code between ME and MI. In our study, participants used their right hand to move an on-screen cursor in the left-right direction with a joystick or imagined the same movement without execution. The results indicated that the left-right direction as well as their modality (ME or MI) could be decoded significantly above the chance level in the presupplementary motor area (pre-SMA) and primary visual cortex (V1). Next, we used activation patterns of ME as inputs to the decoder to predict hand move di-rections in MI sessions and found a significantly higher-than-chance accuracy only in V1, not in pre-SMA. Moreover, the representational similarity analysis showed similar activation patterns for the same directions between ME and MI in V1 but not in pre-SMA. This study's finding indicates distinct spatial activation patterns for movement directions between ME and MI in pre-SMA. |
| Rights: | ©2023. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/92521 |
| Appears in Collections: | 文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 小川 健二
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