Title
Haptic fMRI: A novel five DOF haptic interface for multi-axis motor neuroscience experiments
Abstract
We present a novel electromagnetically actuated Haptic fMRI Interface with five degrees-of-freedom (DOF), HFI-5. The interface uses two three DOF devices connected with a gimbal in a closed kinematic chain to achieve three-axis translation and two-axis rotation. To highlight the device's design, we develop a taxonomy of similar devices and demonstrate why HFI-5's design excels. We use a cross-correlation based novel analysis method to demonstrate that HFI-5 is transparent by showing that it does not affect unconstrained subject motions. This is due to its low friction (<; 0.31 N) and lightweight design. Next, we show that HFI-5 can accurately track positions, velocities, and accelerations, in part due to a 7.5 kHz servo loop. Finally, we demonstrate that HFI-5 is fMRI-compatible and does not interfere with fMRI scans even while applying large torques with its electromagnetic motors.
Year
DOI
Venue
2017
10.1109/WHC.2017.7989849
2017 IEEE World Haptics Conference (WHC)
Keywords
Field
DocType
haptic fMRI interface,five DOF haptic interface,multiaxis motor neuroscience experiments,closed kinematic chain,three-axis translation,two-axis rotation,cross-correlation based novel analysis method,HFI-5,electromagnetic motors
Computer vision,Kinematics,Servo loop,Torque,Simulation,Computer science,Control engineering,Artificial intelligence,Kinematic chain,Haptic technology,Gimbal,Actuator
Conference
ISBN
Citations 
PageRank 
978-1-5090-1426-2
0
0.34
References 
Authors
14
6
Name
Order
Citations
PageRank
samir menon1253.55
Amaury Soviche200.34
Jananan Mithrakumar300.34
Alok Subbarao400.34
Hari Ganti540.77
Oussama Khatib663761172.08