Reconstruction of Arm Movement Directions from Human Motor Cortex Using fMRI
Recent advances in functional magnetic resonance imaging (fMRI) have been used to reconstruct cognitive states based on brain activity evoked by sensory or cognitive stimuli. To date, such decoding paradigms were mostly used for visual modalities. On the other hand, reconstructing functional brain a...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2017-07-01
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| Series: | Frontiers in Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/article/10.3389/fnins.2017.00434/full |
| _version_ | 1828872271176925184 |
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| author | Seungkyu Nam Dae-Shik Kim |
| author_facet | Seungkyu Nam Dae-Shik Kim |
| author_sort | Seungkyu Nam |
| collection | DOAJ |
| description | Recent advances in functional magnetic resonance imaging (fMRI) have been used to reconstruct cognitive states based on brain activity evoked by sensory or cognitive stimuli. To date, such decoding paradigms were mostly used for visual modalities. On the other hand, reconstructing functional brain activity in motor areas was primarily achieved through more invasive electrophysiological techniques. Here, we investigated whether non-invasive fMRI responses from human motor cortex can also be used to predict individual arm movements. To this end, we conducted fMRI studies in which participants moved their arm from a center position to one of eight target directions. Our results suggest that arm movement directions can be distinguished from the multivoxel patterns of fMRI responses in motor cortex. Furthermore, compared to multivoxel pattern analysis, encoding models were able to also reconstruct unknown movement directions from the predicted brain activity. We conclude for our study that non-invasive fMRI signal can be utilized to predict directional motor movements in human motor cortex. |
| first_indexed | 2024-12-13T06:50:34Z |
| format | Article |
| id | doaj.art-d61a44c951d347f1b62e5ba7d769f4d1 |
| institution | Directory Open Access Journal |
| issn | 1662-453X |
| language | English |
| last_indexed | 2024-12-13T06:50:34Z |
| publishDate | 2017-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Neuroscience |
| spelling | doaj.art-d61a44c951d347f1b62e5ba7d769f4d12022-12-21T23:56:09ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2017-07-011110.3389/fnins.2017.00434257124Reconstruction of Arm Movement Directions from Human Motor Cortex Using fMRISeungkyu NamDae-Shik KimRecent advances in functional magnetic resonance imaging (fMRI) have been used to reconstruct cognitive states based on brain activity evoked by sensory or cognitive stimuli. To date, such decoding paradigms were mostly used for visual modalities. On the other hand, reconstructing functional brain activity in motor areas was primarily achieved through more invasive electrophysiological techniques. Here, we investigated whether non-invasive fMRI responses from human motor cortex can also be used to predict individual arm movements. To this end, we conducted fMRI studies in which participants moved their arm from a center position to one of eight target directions. Our results suggest that arm movement directions can be distinguished from the multivoxel patterns of fMRI responses in motor cortex. Furthermore, compared to multivoxel pattern analysis, encoding models were able to also reconstruct unknown movement directions from the predicted brain activity. We conclude for our study that non-invasive fMRI signal can be utilized to predict directional motor movements in human motor cortex.http://journal.frontiersin.org/article/10.3389/fnins.2017.00434/fullfMRIreconstructionclassificationdecodingencodingdirectional movement |
| spellingShingle | Seungkyu Nam Dae-Shik Kim Reconstruction of Arm Movement Directions from Human Motor Cortex Using fMRI Frontiers in Neuroscience fMRI reconstruction classification decoding encoding directional movement |
| title | Reconstruction of Arm Movement Directions from Human Motor Cortex Using fMRI |
| title_full | Reconstruction of Arm Movement Directions from Human Motor Cortex Using fMRI |
| title_fullStr | Reconstruction of Arm Movement Directions from Human Motor Cortex Using fMRI |
| title_full_unstemmed | Reconstruction of Arm Movement Directions from Human Motor Cortex Using fMRI |
| title_short | Reconstruction of Arm Movement Directions from Human Motor Cortex Using fMRI |
| title_sort | reconstruction of arm movement directions from human motor cortex using fmri |
| topic | fMRI reconstruction classification decoding encoding directional movement |
| url | http://journal.frontiersin.org/article/10.3389/fnins.2017.00434/full |
| work_keys_str_mv | AT seungkyunam reconstructionofarmmovementdirectionsfromhumanmotorcortexusingfmri AT daeshikkim reconstructionofarmmovementdirectionsfromhumanmotorcortexusingfmri |