| Presentation | 2010-01-18 Brain mechanisms of dynamic image generation based on body schema (1) Toshio INUI, Yoko YAMAGUCHI, Naoyuki SATO, Hiroaki MIZUHARA, Takafumi SASAOKA, Nobuhiko ASAKURA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose body-schema-based neural network models for mental transformations of object and scene representations. For the mental transformations of an object, a parietal-premotor network is exploited to perform mental rotation using stored object representations in the inferotemporal cortex. For mental transformations of a scene, a hippocampal network is recruited to perform viewer rotation to update an egocentric representation of multiple objects in a scene encoded by theta phase precession. We present neuroimaging and behavioral studies that provide support for the proposed models. Our fMRI study on mental rotation reveals significant activations within the premotor cortex and the inferior parietal lobe. In addition, activity in the right parieto-occipital region is consistently related to the amount of mental rotation. Our behavioral experiment further shows that the environmental vertical axis is preferentially used for imagined object rotations. This result suggests that body-environment interactions in a gravitational world are incorporated into the process of mental rotation. Finally, by using simultaneous fMRI and EEG, we show that theta oscillation dynamically binds the frontal eye field and the medial temporal lobe into a coherent whole during object-place memory retention. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | dynamic image generation / mental rotation / perspective taking / theta oscillation / parietal / premotor / hippocampus |
| Paper # | NC2009-73 |
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| Committee | NC |
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| Conference Date | 2010/1/11(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) | Brain mechanisms of dynamic image generation based on body schema (1) |
| Sub Title (in English) | |
| Keyword(1) | dynamic image generation |
| Keyword(2) | mental rotation |
| Keyword(3) | perspective taking |
| Keyword(4) | theta oscillation |
| Keyword(5) | parietal |
| Keyword(6) | premotor |
| Keyword(7) | hippocampus |
| 1st Author's Name | Toshio INUI |
| 1st Author's Affiliation | Graduate School of Informatics Kyoto University() |
| 2nd Author's Name | Yoko YAMAGUCHI |
| 2nd Author's Affiliation | Laboratory for Dynamics of Emergent Intelligence RIKEN Brain Science Institute |
| 3rd Author's Name | Naoyuki SATO |
| 3rd Author's Affiliation | School of Systems Information Science Department of Complex Systems Future University-Hakodate |
| 4th Author's Name | Hiroaki MIZUHARA |
| 4th Author's Affiliation | Graduate School of Informatics Kyoto University |
| 5th Author's Name | Takafumi SASAOKA |
| 5th Author's Affiliation | Graduate School of Informatics Kyoto University |
| 6th Author's Name | Nobuhiko ASAKURA |
| 6th Author's Affiliation | Graduate School of Informatics Kyoto University |
| Date | 2010-01-18 |
| Paper # | NC2009-73 |
| Volume (vol) | vol.109 |
| Number (no) | 363 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |