Individual and group activation foci in response to somatosensory stimulation
Toe | Prepuce | Penile shaft | Lower abdominal wall | |||||
---|---|---|---|---|---|---|---|---|
Single subject | Center of gravity (x,y,z) | t value | Center of gravity (x,y,z) | t value | Center of gravity (x,y,z) | t value | Center of gravity (x,y,z) | t value |
1 | 22, −35, 68 | 4.07 | 28, −31, 70 | 6.76 | 28, −31, 70 | 6.12 | ||
2 | 14, −33, 74 | 5.12 | 28, −39, 72 | 5.6 | 28, −39, 70 | 6.29 | ||
3 | 6, −35, 68 | 7.86 | 22, −39, 70 | 5.18 | 18, −37, 70 | 6.69 | ||
4 | 14, −33, 75 | 7.14 | — | — | 20, −34, 68 | 4.01 | ||
5 | 10, −46, 61 | 6.03 | 12, −40, 59 | 5.65 | 14, −40, 57 | 6.2 | 14, −40, 59 | 8.26 |
6 | 20, −37, 74 | 5.5 | 26, −31, 73 | 5.53 | 26, −31, 73 | 8.11 | 28, −29, 71 | 8.3 |
7 | 10, −41, 70 | 7.9 | 12, −40, 65 | 3.53* | 12, −40, 61 | 4.81 | 14, −38, 61 | 7.02 |
8 | 6, −37, 74 | 6.07 | 32, −41, 70 | 4.39 | 34, −39, 70 | 3.2* | 38, −37, 68 | 3.25* |
Toe | Prepuce | Penile shaft | |||||
---|---|---|---|---|---|---|---|
Group | Center of gravity (x,y,z) | t value | Center of gravity (x,y,z) | t value | Center of gravity (x,y,z) | t value | Region |
12, −39, 72 | 7.38 | 24, −33, 72 | 3.43** | 24, −35, 68 | 3.43** | SI contralateral | |
50, −24, 25 | 11.3 | 61, −21, 14 | 8.02 | 61, −21, 16 | 5.45 | OP1 contralateral | |
55, 2, 2 | 5.91 | 53, 0, 0 | 7.62 | 63, −11, 12 | 3.47** | OP4 contralateral | |
−53, −24, 21 | 5.75 | −63, −15, 15 | 4.77 | −63, −22, 34 | 4.42** | OP1 ipsilateral | |
−50, −4, 2 | 10.83 | −55, 6, 2 | 3.86** | −51, −4, 4 | 5.15 | OP4 ipsilateral |
Coordinates indicate the individual local maxima in the x (mediolateral, with positive values indicating right-hemispheric), y (rostrocaudal, with negative values indicating caudal), and z (dorsoventral, with positive values for dorsal) axes in the Talairach space. Individual activations were significant at p < 0.05, corrected for multiple comparisons within the Rolandic template volume (Fig. 1) unless marked otherwise (*p < 0.001, uncorrected). Activations in the group analysis were significant at p < 0.001, uncorrected unless marked otherwise (**p < 0.01, uncorrected). Most of these activations survived thresholds of p < 0.05, corrected for multiple comparisons within the opercular template volume (Fig. 2) on the single-subject level. −, No activation detected.