Table II.
A: Additional brain activation of left‐handers during bimanual compared with unimanual pantomiming of tool use, alpha (FDR) > 0.05; (B) cerebral activation during eye movements compared with eye fixation, alpha (FDR) > 0.001
| Brain region | BA | Talairach coordinates (Left) | Cluster size | t max | Talairach coordinates (Right) | Cluster size | t max | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| X | Y | Z | X | Y | Z | ||||||
| A: (BiToolLeft > UniToolLeft) ∩ (BiToolLeft > BiControlLeft) ∩ (UniToolLeft > UniControlLeft) | |||||||||||
| Frontal cluster | |||||||||||
| Superior/middle frontal gyrus | 6 | −23 | −8 | 61 | 2,274 | 5.96 | |||||
| Parietal clusters idem | |||||||||||
| Intraparietal sulcus | 7/40 | −31 | −51 | 50 | 3,561 | 6.02 | 24 | −54 | 57 | 168 | 5.37 |
| Temporal and occipital clusters | |||||||||||
| Occipital gyri | 19 | 29 | −78 | 23 | 830 | 6.22 | |||||
| 39 | 45 | −72 | 4 | 333 | 5.86 | ||||||
| Cuneus | 17 | −8 | −90 | 4 | 140 | 5.49 | |||||
| Fusiform gyrus | 19 | 22 | 61 | −8 | 554 | 7.07 | |||||
| B: Saccadic eye movements > eye fixation | |||||||||||
| Frontal cluster | |||||||||||
| Precentral gyrus | 4 | −33 | −9 | 49 | 1,524 | 10.82 | 38 | −6 | 50 | 3,412 | 11.60 |
| Parietal clusters | |||||||||||
| Superior parietal lobule | 7 | −23 | −57 | 54 | 1,982 | 11.92 | 21 | −58 | 57 | 1,399 | 10.68 |
| Inferior parietal lobule | 40 | 33 | −36 | 46 | 682 | 9.26 | |||||
| Temporo‐occipital cluster | |||||||||||
| Bilateral visual areas | 18 | −10 | −72 | −1 | 30,106 | 23.37 | 9 | −78 | −1 | 36,301 | 23.37 |