Neuroscience 2004 Abstract
| Presentation Number: | 533.18 |
|---|---|
| Abstract Title: | A new method to control for 2D- movement kinematics during functional magnetic resonance imaging (fMRI). |
| Authors: |
Hauptmann, B.*1
; Sosnik, R.
; Smikt, O.
; Okon, E.
; Flash, T.
; Karni, A.
1Dept Neurol - CCM, Charité- Univ. Med. Berlin, Berlin, Germany |
| Primary Theme and Topics |
Motor Systems - Kinematics and EMG -- Reaching and pointing |
| Session: |
533. Kinematics and EMG: Reaching and Pointing II Poster |
| Presentation Time: | Monday, October 25, 2004 2:00 PM-3:00 PM |
| Location: | San Diego Convention Center - Hall A-H, Board # Y7 |
| Keywords: | KINEMATICS, MRI, MOTOR CONTROL, OPTICAL RECORDING |
The validity of movement kinematics during functional magnetic resonance imaging (fMRI) experiments is poorly controlled due to technical constraints of the imaging environment. To reliably identify brain areas related to simple and complex movement sequences as well as learning related motor performance changes it is important to control carefully for type, speed and accuracy of the performed movement. We present a method designed to record kinematics of drawing-like upper limb movements during functional magnetic resonance imaging. The recording system consists of a translucent plastic board, a plastic pen with fiber optics and a halogen light power source, a CCD camera, a video monitor and a PC with a video grabber card. Our method yields high temporal and spatial resolution of the recorded movement kinematics during fMRI scanning. Control experiments using a commercially available digitizer tablet show a) the reliability of the kinematic data recorded during functional magnetic resonance imaging and b) the sensitivity in detecting learning induced changes of the movement kinematics at various time points. Since the signal is purely optical, there is no interaction between the arm movement signals and the echoplanar images. This reasonably priced tracker system can be used to control for upper limb position and monitor upper limb movements as well as learning related performance changes during fMRI experiments.
Supported by Dominic-Einhorn Found
Sample Citation:
[Authors]. [Abstract Title]. Program No. XXX.XX. 2004 Neuroscience Meeting Planner. San Diego, CA: Society for Neuroscience, 2004. Online.
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