Biomedical Engineering Reference
In-Depth Information
FIgURE 4.:
Neuronal firing counts from the 10 highest and lowest sensitivity neurons time-synchro-
nized with the trajectory of one reaching movement.
All of the lowest sensitivity neurons primarily contain single firings, which do not display any
measurable correlations to the movement. The data from these neurons are relatively sparse when com-
pared to the highest sensitivity neurons, indicating that the network is not using them for the mapping.
Cellular Importance for Cursor Control Tasks.
We extend our analysis methodology for se-
lecting important neurons for constructing the BMI mapping in a cursor control task. This time,
however, the analysis will include all the kinematic variables available, HP, hand velocity (HV), and
grip force (GF) from a rhesus monkey's neural recordings. For each variable, separate RMLPs were
