Table IV.
Comparisons of the regional mean contrast magnitudes of ROIs between the post‐training and baseline occasions for the early blind and normal vision groups
| ROI | L/R | Label | Mean response magnitude (SD) | |||||
|---|---|---|---|---|---|---|---|---|
| Early blind group | Normal vision group | |||||||
| After training | Baseline | t‐Values | After training | Baseline | t‐Valuesa | |||
| 1 | R | Inferior frontal gyrus | 7.532 (1.602) | 5.177 (4.135) | 1.909 | 2.031 (2.913) | 1.571 (2.532) | 0.974 |
| 2 | L | Inferior parietal cortex | 6.457 (3.362) | 3.342 (4.165) | 2.597 | 2.068 (0.963) | 1.384 (1.105) | 2.083 |
| 3 | R | Inferior parietal cortex | 5.872 (2.264) | 2.419 (3.199) | 4.463** | 1.229 (1.781) | 0.956 (1.570) | 0.443 |
| 4 | L | Hippocampus | 2.087 (1.719) | 0.243 (1.787) | 3.139* | −0.201 (1.600) | −0.428 (1.088) | 0.390 |
| 5 | R | Cuneus | 9.127 (4.051) | 3.951 (4.175) | 3.058* | 0.313 (2.360) | −0.467 (1.391) | 1.184 |
| 6 | L | Cuneus | 8.180 (3.554) | 4.943 (6.327) | 1.734 | 0.838 (4.985) | −0.068 (1.532) | 0.795 |
| 7 | L | Middle occipital gyrus | 7.146 (5.012) | 4.824 (5.255) | 2.617 | −0.807 (3.064) | −1.082 (1.458) | 0.416 |
| 8 | R | Inferior occipital gyrus | 7.628 (3.586) | 4.263 (4.781) | 2.217 | −1.151 (4.955) | −1.603 (1.430) | 0.367 |
The ROIs 1–3 mediate cross auditory‐spatial processing (auditory localization, spatial judgment); ROI 4 mediates associative learning (general), and ROIs 5–8 mediate associative learning (occipital enhancement). ROIs with asterisks were statistically significant:
*
P ≤ 0.050 and
**
P ≤ 0.001 (significance levels set were P ≤ 0.050 for ROIs 1 and 4, P ≤ 0.025 for ROIs 2 and 3, and P ≤ 0.0125 for ROIs 5 to 8).
a
All t‐values for the normal vision group are not statistically significant only that of the left inferior parietal cortex obtained a marginal value, i.e. P = 0.058.