Table I.
Foci of significant regional cerebral blood flow (rCBF) increase during chopstick and finger prehension when compared with baseline
| Region of rCBF increase | (BA) | Side | Chopsticks | Z score of peak activation | Fingers | Z score of peak activation | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| MNI image coordinates of peak activation | MNI image coordinates of peak activation | |||||||||
| x | y | z | x | y | z | |||||
| Cortical areas | ||||||||||
| Primary sensory/motor area | (4,3,1,2) | L | — | — | — | — | −36 | −16 | 56 | >8 |
| Primary sensory area | (3,1,2) | L | −40 | −20 | 58 | >8 | — | — | — | — |
| (3,12) | L | −54 | −26 | 42 | >8 | — | — | — | — | |
| Primary motor area | (4) | L | −28 | −22 | 64 | >8 | — | — | — | — |
| Dorsal premotor area | (6) | L | −36 | −16 | 56 | >8 | −26 | −20 | 66 | >8 |
| (6) | R | 20 | −4 | 58 | 5.10 | 44 | −8 | 60 | 5.84 | |
| (6) | R | 12 | −6 | 60 | 4.90 | — | — | — | — | |
| Ventral premotor area | (6) | L | −58 | 2 | 36 | 4.96 | — | — | — | — |
| (6/44) | L | −60 | 4 | 32 | 5.28 | — | — | — | — | |
| Supplementary motor area | (6) | L | −8 | −8 | 56 | 7.54 | −14 | −12 | 60 | >8 |
| Cingulate motor area | (24) | L | −14 | −2 | 46 | 4.93 | −14 | −2 | 46 | 5.29 |
| Secondary sensory area | (2,43) | L | −56 | −22 | 28 | 6.75 | −56 | −24 | 24 | 5.56 |
| Superior parietal lobule | (7) | L | −38 | −58 | 62 | >8 | −24 | −70 | 62 | >8 |
| (7) | L | −18 | −68 | 60 | >8 | −16 | −66 | 62 | 7.59 | |
| (7) | L | −16 | −64 | 60 | >8 | — | — | — | — | |
| (7) | L | −30 | −64 | 58 | 7.73 | — | — | — | — | |
| (7) | L | −22 | −70 | 60 | 7.69 | — | — | — | — | |
| (7) | L | −20 | −68 | 50 | 7.08 | — | — | — | — | |
| (7) | R | 30 | −60 | 58 | 5.85 | — | — | — | — | |
| (7) | R | 12 | −68 | 54 | 5.53 | — | — | — | — | |
| (7) | R | 20 | −66 | 70 | 5.48 | — | — | — | — | |
| Inferior parietal lobule | (40) | L | −40 | −38 | 58 | >8 | −40 | −38 | 58 | >8 |
| Superior/inferior parietal lobule | (7/40) | L | −36 | −50 | 58 | >8 | −26 | −50 | 58 | >8 |
| Inferior parietal sulcus | (40) | L | −40 | −32 | 44 | >8 | −40 | −32 | 44 | >8 |
| Ventral intraparietal | L | −16 | −32 | 42 | 4.88 | −16 | −32 | 46 | 4.89 | |
| Middle temporal gyrus | (37) | L | −40 | −72 | 0 | 4.89 | — | — | — | — |
| Primary visual area | (17) | L | −20 | −82 | 2 | 5.48 | — | — | — | — |
| (17) | R | 28 | −86 | 0 | 6.80 | — | — | — | — | |
| Secondary visual area | (18) | L | −14 | −98 | 0 | 6.31 | — | — | — | — |
| (18) | L | −16 | −100 | −4 | 6.11 | — | — | — | — | |
| (18) | L | −22 | −84 | 6 | 6.03 | — | — | — | — | |
| (18) | L | −20 | −84 | 12 | 5.99 | −20 | −84 | 14 | 6.47 | |
| (18) | L | −6 | −90 | −12 | 4.96 | — | — | — | — | |
| (18) | R | 10 | −90 | 6 | >8 | 26 | −84 | 20 | 4.63 | |
| (18) | R | 22 | −82 | −2 | 6.08 | 10 | −90 | 6 | >8 | |
| (19) | L | −20 | −84 | 32 | >8 | −18 | −84 | 34 | 7.48 | |
| (19) | R | 30 | −88 | 20 | 4.68 | 22 | −82 | 26 | 4.97 | |
| Thalamus | ||||||||||
| Ventral‐posterior lateral portion | L | −16 | −18 | 6 | 6.20 | −18 | −18 | 6 | 5.86 | |
| L | — | — | — | — | −20 | −26 | 2 | 5.58 | ||
| L | — | — | — | — | −18 | −30 | 0 | 5.56 | ||
| Cerebellum | ||||||||||
| Vermis | R | 6 | −70 | −28 | >8 | 4 | −70 | −30 | >8 | |
| Paramedian lobule | R | 10 | −60 | −20 | >8 | 10 | −60 | −18 | >8 | |
| Hemisphere | L | −24 | −58 | −28 | 7.33 | −24 | −60 | −26 | 5.12 | |
| L | −20 | −72 | −22 | 6.79 | — | — | — | — | ||
| L | −26 | −44 | −44 | 5.02 | — | — | — | — | ||
| L | −26 | −42 | −50 | 4.76 | — | — | — | — | ||
| R | 22 | −56 | −24 | >8 | 30 | −50 | −30 | >8 | ||
| R | 28 | −54 | −50 | 5.54 | 28 | −56 | −50 | 5.51 | ||
BA: Brodman's area, X and Y coordinate values are given in millimeters. The X values specify the lateral displacement from the midline (negative values for left hemisphere); Y values give the anteroposterior displacement relative to the anterior commissural (AC) line (negative values for posterior to the AC line); Z values specify the vertical portion relative to the AC‐PC plane (negative values for pixels below this plane). P < 0.05, corrected for multiple comparisons.