Recognition of Flexion and Extension Imagery Involving the Right and Left Arms Based on Deep Belief Network and Functional Near-Infrared Spectroscopy

Figure 5

Average fNIRS response and topographic map. (a) The average fNIRS response of flexion and extension movement involving the right and left arms and topographic map of HbO concentration in the motor cortex during the first 8 seconds of performing the task. (b) Average fNIRS response for flexion and extension imagery involving the right and left arms and topographic map of HbO concentration in the motor cortex during the first 8 seconds of performing the task. In the figure, L-HbO and R-HbO are the z value of HbO concentration for flexion and extension movement or imagery involving the right and left arms; L-HbR and R-HbR are the z value of HbR concentration for flexion and extension movement or imagery involving the right and left arms; L-FE_ME: left arm flexion and extension execution; R-FE_ME: right arm flexion and extension execution; L-FE_MI: left arm flexion and extension imagery; R-FE_MI: right arm flexion and extension imagery.

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