Table 1.

Peak-to-peak value ratio between affected side and normal side of action potentials in each group.

$\overline{\text{x}}$	Affected side/normal side	F	P
Blank group	0.4300 ± 0.0372		All the P values of each group through pairwise comparison were less than 0.05
Self-rotating group	0.7821 ± 0.0578	528.78
GO20 group	1.0197 ± 0.0161