'Institute of Electrical and Electronics Engineers (IEEE)'
Abstract
This study demonstrates that the spiking and local
field potential (LFP) activity in the parietal reach region (PRR)
of the macaque monkey can be jointly used to control the
location of the computer cursor when the correct target
location must be inferred symbolically, e.g., leftward arrow for
the leftward target, etc. The average correct target acquisition
rate during this brain machine control task without actual
movements was 86% for the six discrete target locations when
using spikes and LFPs from 16 electrodes. This performance
was significantly better than using spikes or LFPs alone. These
results, together with our previous findings, suggest that a
single decoder based on both spikes and LFPs in PRR can
robustly provide the subjects’ motor intent under varying
contexts for neural prosthetic applications