Table 3.
Global basal ganglia functional connectivity for the split HC groups during the intrinsic alertness task.
| Task | Connectivity | Block 1 | Block 4 | ||||
|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | t value | df | ||
| Handgrip only | Caudate | 0.38 | 0.15 | 0.39 | 0.18 | −0.22 | 18 |
| Putamen | 0.37 | 0.13 | 0.38 | 0.13 | −0.04 | 18 | |
| Pallidum | 0.37 | 0.12 | 0.40 | 0.18 | −0.68 | 18 | |
| Average | 0.37 | 0.09 | 0.39 | 0.14 | −0.46 | 18 | |
| Mental imagery first | Caudate | 0.34 | 0.09 | 0.41 | 0.11 | −2.07* | 16 |
| Putamen | 0.36 | 0.11 | 0.41 | 0.09 | −1.98* | 16 | |
| Pallidum | 0.36 | 0.12 | 0.40 | 0.12 | −1.11 | 16 | |
| Average | 0.36 | 0.09 | 0.41 | 0.08 | −1.80 | 16 | |
Handgrip 1st n = 19; Mental Imagery 1st n = 17, * p < 0.05, ** p < 0.01. HC = healthy control, MS = multiple sclerosis, SD = standard deviation, df = degrees of freedom.