Table 1.
Applied stimulation parameters for groups DBS On–On (On) and On–Off (Off)
| Coordinates/stim. parameters | DBS On | DBS Off | ANOVA |
|---|---|---|---|
| Left hemisphere | |||
| Active electrode X | −10.96 (0.52) | −10.35 (0.45) | F(1, 20) = 0.70; P = 0.42 |
| Active electrode Y | −14.20 (0.41) | −13.91 (0.44) | F(1, 20) = 0.23; P = 0.64 |
| Active electrode Z | −7.28 (0.60) | −7.52 (0.81) | F(1, 20) = 0.06; P = 0.81 |
| Voltages (Volt) | 2.53 (0.31) | 3.03 (0.21) | F(1, 20) = 0.41; P = 0.53 |
| Frequency (Hertz) | 143.33 (8.56) | 164.44 (9.59) | F(1, 20) = 0.23; P = 0.62 |
| Euclidean distance to the STN | 4.33 (0.33) | 4.53 (0.43) | F(1, 20) = 3.71; P = 0.07 |
| Right hemisphere | |||
| Active electrode X | 12.44 (0.40) | 11.58 (0.53) | F(1, 20) = 1.79, P = 0.20 |
| Active electrode Y | −14.29 (0.51) | −13.64 (0.39) | F(1, 20) = 0.91, P = 0.35 |
| Active electrode Z | −6.92 (0.70) | −7.86 (0.60) | F(1, 20) = 0.96, P = 0.34 |
| Voltages (Volt) | 2.71 (0.32) | 2.90 (0.26) | F(1, 20) = 0.01, P = 0.91 |
| Frequency (Hertz) | 143.33 (8.56) | 170.00 (8.66) | F(1, 20) = 0.03, P = 0.87 |
| Euclidean distance to the STN | 3.43 (0.34) | 4.69 (0.28) | F(1, 20) = 0.61, P = 0.45 |
Note. Electrode data were given as means (SEM in parentheses). A single factor ANOVA was used to determine whether there were significant differences in the positions of the left and right activated electrodes and in the stimulation current and voltage between the On–On and On–Off groups (see Fig. 8).