Table 2.
Post-adolescent changes in grey matter volumes
| Comparison between adolescence and adulthood GM volumes for each gender separately | |||
|---|---|---|---|
| GM | |||
| Region | girls n = 11 mean ± sd | women n = 7 mean ± sd | girls > women; Mann Whitney Test (p; U) |
| Frontal LH | 105819.27 ± 10092.60 | 99142.43 ± 7696.90 | p = 0.269; U = 22 |
| Parietal LH | 67123.09 ± 6141.20 | 62094.43 ± 6760.26 | p = 0.160; U = 23 |
| Temporal LH | 61064.27 ± 6307.38 | 61638.29 ± 5222.18 | p = 0.964; U = 38 |
| Occipital LH | 29002.45 ± 3693.50 | 26791.14 ± 2067.52 | p = 0. 258; U = 26 |
| Frontal RH | 108348.45 ± 10213.77 | 100872.86 ± 8993.21 | p = 0.160; U = 23 |
| Parietal RH | 71064.82 ± 6580.42 | 63246.29 ± 7122.82 | p = 0.026; U = 14 |
| Temporal RH | 60059.45 ± 6182.36 | 58535.71 ± 4608.38 | p = 0.751; U = 35 |
| Occipital RH | 29268.64 ± 3007.64 | 28653.86 ± 2540.77 | p = 0.892; U = 37 |
| LH | 290398.00 ± 25273.48 | 276099.14 ± 23583.36 | p = 0.258; U = 26 |
| RH | 294415.55 ± 25088.25 | 278559.57 ± 25931.16 | p = 0.298; U = 27 |
| WB | 561198.84 ± 48384.66 | 530169.47 ± 47531.26 | p = 0.390; U = 29 |
| Region | boys n = 6 mean ± sd | men n = 7 mean ± sd | boys > men; Mann Whitney Test (p; U) |
| Frontal LH | 114560.50 ± 10047.40 | 95270.86 ± 7701.94 | p = 0.010; U = 3 |
| Parietal LH | 76580.17 ± 8261.57 | 64411.71 ± 8507.64 | p = 0.032; U = 6 |
| Temporal LH | 69790.67 ± 7485.49 | 58297.86 ± 7431.34 | p = 0.022; U = 5 |
| Occipital LH | 32486.00 ± 4057.36 | 27016.14 ± 2778.61 | p = 0.022; U = 5 |
| Frontal RH | 116681.00 ± 11154.30 | 97360.43 ± 7697.68 | p = 0.010; U = 3 |
| Parietal RH | 78820.83 ± 8150.86 | 65528.71 ± 8132.11 | p = 0.022; U = 5 |
| Temporal RH | 67066.50 ± 8730.89 | 57119.14 ± 5243.98 | p = 0.032; U = 6 |
| Occipital RH | 33500.00 ± 3907.30 | 29446.14 ± 4103.80 | p = 0.116; U = 10 |
| LH | 324345.17 ± 28824.10 | 272938.71 ± 27086.43 | p = 0.010; U = 3 |
| RH | 326150.00 ± 30526.81 | 275716.86 ± 25912.25 | p = 0.015; U = 4 |
| WB | 625595.87 ± 57501.99 | 523328.30 ± 52695.32 | p = 0.070; U = 2 |
Post-adolescence measurements: girls versus women; boys versus men, comparisons for grey matter volumes measured in mm3. The significant comparisons are written in bold, where LH = left hemisphere; RH = right hemisphere and WB = whole brain.