Table 3. Patterns of change from pre-treatment to 3 month follow-up*, according to percent volume of activation; wrist extension motor task.
| PATTERN OF CHANGE | |||
|---|---|---|---|
| I. Brain Region | II. Decrease Change in % Volume of Activation (Subject number) | III Increase Change in % Volume of Activation (Subject number) | IV. No Change in % Volume of Activation (Subject number) |
| A. lesioned hemisphere, contralateral to the moving wrist) | |||
| 1. Primary Motor (BA 4ap) | |||
| 1.1. ‘Hand Knob’ sub-section of Primary Motor | 03% (S1) 48% (S2) | 20% (S3) | (S4)** |
| 1.2. Primary Motor sub-section, minus ‘Hand knob’ | 19% (S1) 24% (S2) | 3% (S3) | (S4) |
| 2. Premotor (BA 6) | 13% (S1) 26% (S2) 02% (S4) | 6% (S3) | |
| 3. Sensory (BA 3ab) | 28% (S1) 20% (S2) 01% (S3) 26% (S4) | ||
| B. Ipsilateral (non-lesioned; right) | |||
| 1. Primary Motor (BA 4ap) | |||
| 1.1. ‘Hand Knob’ sub-section of Primary Motor | 30% (S1) 68% (S2) | 20% (S3) 03% (S4) | |
| 1.2. Primary Motor sub-section minus ‘Hand knob’ | 26% (S1) 40% (S2) 19% (S4) | (S3) | |
| 2. Premotor (BA 6) | 13% (S1) 25% (S2) 19% (S4) | 03% (S3) | |
| 3. Sensory (BA 3ab) | 11% (S1) 10% (S4) | (S2) (S3) | |
Key: S: Subject.
* Change values for S4 were calculated using pre-treatment and post-treatment because the follow-up values for S4 were zero’s, which could spuriously increase the change values; this situation of zero’s at follow-up could have arisen due to his expressed discouragement at having had no treatment between post-treatment and follow-up and an obvious worsening of motor control.
**No Hand Knob region could be identified in the surviving tissue of S4’s lesioned hemisphere.