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Abstract #2327

7T Spin-echo functional MRI reveals mirrored representations in the human motor cortex

SoHyun Han1, Seulgi Eun2, Dongho Kim3, HyungJoon Cho4, and Seong-Gi Kim3
1Bio-imaging and Translational Research, Korea Basic Science Institute (KBSI), Ochang, Korea, Republic of, 2Division of KM Science Research, Korea Institute of Oriental Medicine (KIOM), Daejeon, Korea, Republic of, 3Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon, Korea, Republic of, 4Department of Biomedical Engineering, Ulsan National Institute Science Technology (UNIST), Ulsan, Korea, Republic of

Synopsis

Keywords: Mesoscale: columns and layers, fMRI Acquisition

Motivation: Human brains exhibit coordination abilities across a diverse range of motor activities.

Goal(s): In our study, we employed an MR-compatible data glove to record hand motion behaviors during fMRI experiments and acquired fMRI data using both gradient echo (GE)-BOLD and SE-BOLD contrasts, aiming to compare their spatial specificity within the columnar structures in human motor cortex.

Approach: Subject-specific motor behavioral data were compared with GE- and SE-BOLD signal.

Results: Our finding indicates that mirrored finger representations in the primary motor cortex were evident with SE-BOLD contrast but not with GE-BOLD contrast.

Impact: By facilitating real-time assessment of individual performance and utilizing motor behavioral data, this approach will improve the quality of fMRI data analysis and may support a diverse range of experimental paradigms.

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Keywords