Table 5.
Global basal ganglia functional connectivity for the split MS groups during the extrinsic alertness task.
| Task | Connectivity | Block 1 | Block 4 | ||||
|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | t value | df | ||
| Handgrip only | Caudate | 0.42 | 0.10 | 0.46 | 0.16 | −1.09 | 18 |
| Putamen | 0.39 | 0.09 | 0.44 | 0.14 | −2.16* | 18 | |
| Pallidum | 0.39 | 0.08 | 0.45 | 0.15 | −2.02* | 18 | |
| Average | 0.40 | 0.06 | 0.44 | 0.12 | −1.76 | 18 | |
| Mental imagery first | Caudate | 0.43 | 0.12 | 0.45 | 0.12 | −0.86 | 17 |
| Putamen | 0.39 | 0.08 | 0.38 | 0.08 | 0.46 | 17 | |
| Pallidum | 0.41 | 0.09 | 0.39 | 0.07 | 1.04 | 17 | |
| Average | 0.41 | 0.06 | 0.41 | 0.06 | 0.03 | 17 | |
Handgrip 1st n = 19; Mental Imagery 1st n = 18, * p < 0.05, ** p < 0.01. HC = healthy control, MS = multiple sclerosis, SD = standard deviation, df = degrees of freedom.