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. Author manuscript; available in PMC: 2013 Jun 5.
Published in final edited form as: Exp Neurol. 2008 Feb 14;211(1):227–233. doi: 10.1016/j.expneurol.2008.01.023

Table 2.

Electrophysiological characteristics of GPi and GPe neurons in HD and PD with subjects at rest. Values are mean +/− standard deviation of mean

GPi GPe
HD PD p-value HD PD p-value
# of neurons 24 132 9 50
Mean firing rate 58.14 +/− 19.1 94.7 +/− 23.7 <.001* 72.9 +/− 15.18 57.46 +/− 21.72 .024*
Burst index 4.79 +/− 1.68 2.35 +/− 0.98 <.001* 2.51 +/− 0.71 2.84 +/− 1.35 NS
Proportion of spikes in bursts 0.094 +/− 0.105 0.045 +/− 0.063 .001* 0.041 +/− 0.044 0.119 +/− 0.101 0.019*
L-statistic 5.75 +/− 0.85 4.82 +/− 0.85 <.001* 4.89 +/− 0.60 5.34 +/− 1.10 NS
Proportion of cells with significant oscillations 3–35 Hz 1/24 27/132 0.006* (chi-square) 0 0 NS
*

denotes statistically significant difference between HD and PD by Mann-Whitney test (unpaired) or chi-square test.