A New Method to Record 2D- Movement Kinematics during Functional Magnetic Resonance Imaging (fMRI)
Kushnir T, Flash T, Okon E, Karni A, Hauptmann B, Sosnik R, Smikt O
The Chaim Sheba Medical Center
We present a relatively simple fMRI compatible, 2D-movement kinematics recording system that allows one to quantitatively analyze the type, speed and accuracy of drawing and writing-like upper limb movements with high temporal and spatial resolution during fMRI studies. The system consists of a plastic pen with fiber optics and a halogen light power source (placed outside the magnet room), a translucent plastic board (workspace), CCD camera and a PC with a video-capture card. Behavioral experiments using a commercially available digitizer tablet have demonstrated the reliability of the kinematics data, while the quality of brain imaging data acquired concurrently was unaffected.