Abstract
Article accompanying a poster presentation for the 2013 Computational Neuroscience Annual Meeting. This article discusses the decoding of movement direction using optical imaging of motor cortex.
Highlights
This study provides a computational scheme to decode intentional arm movement direction using optical imaging of the motor cortex for future implementation on a neuroprosthetic device that enables physically disabled patients to navigate a wheelchair using brain-derived signals
We employed four different measures of hemodynamic profiles – oxy- (HbO2) and deoxy-hemoglobin (Hb), and their sum (HbO2 + Hb) and difference (HbO2 - Hb) signals – to correlate oxygen delivery, oxygen extraction, total blood volume delivered, and total oxygenation with a series of specific movements to identify the direction of the intentional movements
Our results show that the four measures of hemodynamic response may be coupled in one movement direction and decoupled in another, for the same subject
Summary
This study provides a computational scheme to decode intentional arm movement direction using optical imaging of the motor cortex for future implementation on a neuroprosthetic device that enables physically disabled patients to navigate a wheelchair using brain-derived signals. We employed four different measures of hemodynamic profiles – oxy- (HbO2) and deoxy-hemoglobin (Hb), and their sum (HbO2 + Hb) and difference (HbO2 - Hb) signals – to correlate oxygen delivery, oxygen extraction, total blood volume delivered, and total oxygenation with a series of specific movements to identify the direction of the intentional movements.
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