Motor Cortical Networks for Skilled Movements Have Dynamic Properties That Are Related to Accurate Reaching
Figure 1
Classification of neurons. Two representative PETHs (bin size 100 ms) illustrating typical neural firing rates during control periods in RS (a) and FS (b) neurons, note the lower mean firing rate in the RS neuron. Spike waveform analysis was also performed on these neurons (c), and differences in spike duration between the averaged waveforms of isolated RS (black) and FS (red) neurons were easily identifiable. When spike duration was plotted against baseline firing rate for all of the neurons recorded from both animals, two distinctly separate clusters emerged (d). Based upon the previously established extracellular criteria, neurons were then classified as either RS (black) or FS (red).
