F2move: fMRI-compatible haptic object manipulation system for closed-loop motor control studies
File(s)390_0343.pdf (1.78 MB)
Published version
Author(s)
Type
Conference Paper
Abstract
Functional neuroimaging plays a key role in addressing open questions in systems and motor neuroscience directly applicable to brain machine interfaces. Building on our low-cost motion capture technology (fMOVE), we developed f2MOVE, an fMRI-compatible system for 6DOF goal-directed hand and wrist movements of human subjects enabling closed-loop sensorimotor haptic experiments with simultaneous neuroimaging. f2MOVE uses a high-zoom lens high frame rate camera and a motion tracking algorithm that tracks in real-time the position of special markers attached to a hand-held object in a novel customized haptic interface. The system operates with high update rate ($120$~Hz) and sufficiently low time delays ($<20$~ms) to enable visual feedback while complex, goal-oriented movements are recorded. We present here both the accuracy of our motion tracking against a reference signal and the efficacy of the system to evoke motor control specific brain activations in healthy subjects. Our technology and approach thus support the real-time, closed-loop study of the neural foundations of complex haptic motor tasks using neuroimaging.
Date Issued
2015-04-22
Date Acceptance
2015-03-11
Citation
2015 7th International IEEE/EMBS Conference on Neural Engineering (NER), 2015, pp.1104-1107
Publisher
IEEE
Start Page
1104
End Page
1107
Journal / Book Title
2015 7th International IEEE/EMBS Conference on Neural Engineering (NER)
Copyright Statement
© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Source
7th Annual International IEEE EMBS Conference on Neural Engineering
Publication Status
Published
Start Date
2015-04-22
Finish Date
2015-04-24
Coverage Spatial
Montpellier, France