Table 1.
Measures of volume, fractional anisotropy (FA), axial diffusivity (AD), radial diffusivity (RD), and length of six left and right fiber connections of the human middle longitudinal fascicle (MdLF) in 70 healthy subjects. Four of these connections are temporo-parietal: superior temporal-angular gyrus, STG(MdLF)AG; superior temporal-supramarginal gyrus, STG(MdLF)SMG; superior temporal-superior parietal lobule, STG(MdLF)SPL; and superior temporal-precuneus, STG(MdLF)PCN. The other two temporo-occipital connections are the superior temporal-cuneus, STG(MdLF)CN, and superior temporal-lateral occipital, STG(MdLF)LOCC. Symmetry index (SI) of these parameters is also reported herein. The results in this table are represented graphically in Figure 5.
| Volume (cm3) | FA | AD | RD | Length (mm) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STG(MdLF)AG | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI |
| Mean | 1.24 | 1.14 | 0.09 | 304.21 | 327.88 | −0.07 | 1962.57 | 2093.05 | −0.06 | 1077.44 | 1146.63 | −0.06 | 84.10 | 87.11 | −0.04 |
| STD | 1.10 | 1.40 | −0.24 | 104.68 | 77.29 | 0.30 | 632.88 | 462.21 | 0.31 | 356.56 | 265.02 | 0.29 | 10.41 | 9.40 | 0.10 |
| STG(MdLF)SMG | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI |
| Mean | 1.09 | 0.87 | 0.22 | 275.12 | 300.82 | −0.09 | 2003.54 | 2168.48 | −0.08 | 1194.63 | 1287.50 | −0.07 | 68.44 | 68.90 | −0.01 |
| STD | 0.84 | 0.80 | 0.05 | 90.69 | 51.24 | 0.56 | 617.75 | 292.04 | 0.72 | 369.87 | 176.35 | 0.71 | 10.52 | 15.24 | −0.37 |
| STG(MdLF)SPL | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI |
| Mean | 1.00 | 1.00 | 0.00 | 362.25 | 348.49 | 0.04 | 2169.22 | 2122.14 | 0.02 | 1126.15 | 1130.23 | 0.00 | 96.92 | 100.36 | −0.03 |
| STD | 0.96 | 1.11 | −0.15 | 76.24 | 70.02 | 0.09 | 376.32 | 367.35 | 0.02 | 206.61 | 239.98 | −0.15 | 9.53 | 8.44 | 0.12 |
| STG(MdLF)PCN | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI |
| Mean | 0.77 | 1.00 | −0.26 | 341.30 | 348.35 | −0.02 | 2146.22 | 2138.92 | 0.00 | 1153.42 | 1141.85 | 0.01 | 92.44 | 98.26 | −0.06 |
| STD | 0.66 | 0.82 | −0.22 | 90.25 | 82.66 | 0.09 | 492.45 | 436.56 | 0.12 | 269.65 | 239.92 | 0.12 | 7.82 | 9.37 | −0.18 |
| STG(MdLF)CN | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI |
| Mean | 0.308 | 0.71 | −0.79 | 306.91 | 381.79 | −0.22 | 2277.26 | 2402.61 | −0.05 | 1359.35 | 1260.07 | 0.08 | 100.76 | 105.80 | −0.05 |
| STD | 0 | 0.51 | −2.00 | 0.00 | 30.18 | −2.00 | 0.00 | 143.77 | −2.00 | 0.00 | 92.51 | −2.00 | 0 | 8.97 | −2.00 |
| STG(MdLF)LOCC | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI |
| Mean | 0.82 | 0.98 | −0.18 | 361.47 | 377.55 | −0.04 | 2354.84 | 2308.58 | 0.02 | 1277.35 | 1212.99 | 0.05 | 86.40 | 91.33 | −0.06 |
| STD | 0.61 | 0.68 | −0.12 | 82.89 | 40.05 | 0.70 | 99.14 | 105.59 | −0.06 | 143.32 | 79.77 | 0.57 | 18.07 | 10.97 | 0.49 |
| TOTAL MdLF | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI |
| Mean | 5.22 | 5.70 | −0.09 | 323.90 | 340.09 | −0.05 | 2096.50 | 2163.62 | −0.03 | 1151.86 | 1181.95 | −0.03 | 85.47 | 89.94 | −0.05 |
| STD | 0.32 | 0.15 | 0.77 | 95.58 | 70.83 | 0.30 | 524.22 | 370.32 | 0.34 | 299.95 | 221.66 | 0.30 | 14.78 | 15.60 | −0.05 |
| TEMPORO-PARIETAL MdLF | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI |
| Mean | 4.09 | 4.01 | 0.02 | 319.72 | 331.94 | −0.04 | 2065.81 | 2128.78 | −0.03 | 1136.15 | 1173.34 | −0.03 | 85.27 | 89.03 | −0.04 |
| STD | 0.20 | 0.11 | 0.58 | 96.55 | 73.58 | 0.27 | 546.20 | 395.83 | 0.32 | 310.39 | 240.43 | 0.25 | 14.43 | 16.16 | −0.11 |
| TEMPORO-OCCIPITAL MdLF | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI | Left | Right | SI |
| Mean | 1.12694 | 1.68746 | −0.40 | 358.44 | 378.40 | −0.05 | 2350.53 | 2327.38 | 0.01 | 1281.91 | 1222.41 | 0.05 | 87.20 | 94.22 | −0.08 |
| STD | 0.36129 | 0.19006 | 0.62 | 81.43 | 37.85 | 0.73 | 97.90 | 117.77 | −0.18 | 140.38 | 83.00 | 0.51 | 17.85 | 12.00 | 0.39 |