| Presentation | 2015-03-16 Task specific movement representations of primary motor cortex inherent in resting-state brain activity measured by functional magnetic resonance imaging Toshiki KUSANO, Hiroki KURASHIGE, Isao NAMBU, Yoshiya MORIGUCHI, Takashi HANAKAWA, Yasuhiro WADA, Rieko OSU, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | It has been suggested that resting-state brain activity reflects the task-induced brain activity patterns. In this study, we examined whether neural representations of specific movements can be observed even in the resting-state brain activity patterns of motor areas. First, we defined two regions of interest (ROIs); areas activated with either task and those activated with both tasks. Using regularized logistic regression, we made the decoder that detects the voxel-level neural representations corresponding to the tasks from each of those ROIs. Next, we applied the decoder to the resting-state brain activity. We found that the decoder detected the neural activity similar to each task-induced neural activity, and the amount of detection was larger than that detected by the decoder whose weights were randomly shuffled, indicating that the resting-state brain activity includes the multi-voxel patterns similar to the neural representations of tasks. Therefore, these results suggest that the neural representation inherent in the resting-state brain activity has been organized finer and more complex than conventionally considered. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Motor Cortex / functional MRI / resting-state brain activity / Regularized logistic regression / Iterative Amplitude Adapted Fourier Transform |
| Paper # | MBE2014-150,NC2014-101 |
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| Committee | NC |
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| Conference Date | 2015/3/9(1days) |
| Place (in Japanese) | (See Japanese page) |
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| 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) | Task specific movement representations of primary motor cortex inherent in resting-state brain activity measured by functional magnetic resonance imaging |
| Sub Title (in English) | |
| Keyword(1) | Motor Cortex |
| Keyword(2) | functional MRI |
| Keyword(3) | resting-state brain activity |
| Keyword(4) | Regularized logistic regression |
| Keyword(5) | Iterative Amplitude Adapted Fourier Transform |
| 1st Author's Name | Toshiki KUSANO |
| 1st Author's Affiliation | Nagaoka University of Technology() |
| 2nd Author's Name | Hiroki KURASHIGE |
| 2nd Author's Affiliation | Keio Advanced Research Centers |
| 3rd Author's Name | Isao NAMBU |
| 3rd Author's Affiliation | Nagaoka University of Technology |
| 4th Author's Name | Yoshiya MORIGUCHI |
| 4th Author's Affiliation | Gunma University Showa Campus |
| 5th Author's Name | Takashi HANAKAWA |
| 5th Author's Affiliation | National Center of Neurology and Psychiatry |
| 6th Author's Name | Yasuhiro WADA |
| 6th Author's Affiliation | Nagaoka University of Technology |
| 7th Author's Name | Rieko OSU |
| 7th Author's Affiliation | Advanced Telecommunications Research Institute International |
| Date | 2015-03-16 |
| Paper # | MBE2014-150,NC2014-101 |
| Volume (vol) | vol.114 |
| Number (no) | 515 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |