Table 1.

Characteristics of the excitatory responses evoked by PL/MO stimulation within STN cells

Type of responses% of responding cellsEarly excitationLate excitation
L (msec)D (msec)L (msec)D (msec)
Two excitations1-a51.1%  (n = 47)7.6  ± 0.26.1  ± 0.321.4  ± 0.514.3  ± 0.6
One prolonged excitation21.7%  (n = 20)8.2  ± 0.523.8  ± 0.9
One late excitation27.2%  (n = 25)21.2  ± 0.612.2  ± 0.8
  • F1-a In 16 of these 47 cells, a short inhibition (L = 15.3 ± 0.6 msec; D = 6.7 ± 0.4 msec) separated the two excitatory peaks; n, number of cells.