Table III.
Subtraction analysis of rate dependent effects during fingertapping
Main effect (all frequencies) | First order term (positive linear) | ||||
---|---|---|---|---|---|
Controls > Patients | Patients > Controls | Controls > Patients | Patients > Controls | ||
Pre‐SMA | Left | 3.81/4.49 [0 9 51] 128 voxels * | n.s. | 4.02/3.98 [0 6 54] 115 voxels * | n.s. |
SMA proper | Mesial | 5.74/6.41 [3 3 54] 128 voxels * | n.s. | 4.73/5.17 [3 0 54] 115 voxels * | n.s. |
Premotor cortex | Right | n.s. | n.s. | n.s. | 4.18/5.03 [39 −3 54] 87 voxels |
SMC | Left | 4.32/5.99 [−39 −33 54] 185 voxels | n.s. | 4.67/5.21 [−42 −30 54] 192 voxels | n.s. |
Right | n.s. | n.s. | n.s. | 3.99/4.28 [48 −33 51] 94 voxels |
Z scores (cursive) and T values represent activation maximum within each region. SPM‐coordinates are printed in square brackets. The extent of each activated area is given by the numbers of activated voxels. Parametric analyses concerning the “First order term” (negative linear, e.g. decreasing activation in parallel with increasing frequency of movement) and positive as well as negative “Second order term” (quadratic effect) revealed no significant results in the patient or control group.
Due to an overlap between pre‐SMA and SMA proper the number of activated voxels are given for both regions together.