Table 4.
Within-group differences in GMV change
| Variable | Yoga | Memory training | ||
| Median change (range) | Signed rank test statistic (p) | Median change (range) | Signed rank test statistic (p) | |
| Clusters | ||||
| Left middle temporal | –0.5 (–3.03–5.73) | 3.0 (0.83) | –6.95 (–21.81–1.26) | –29.0 (0.007**) |
| Left supramarginal | –0.42 (–4.62–5.21) | –6.0 (0.64) | –8.05 (–20.37–0.1) | –30.0 (0.005**) |
| Left precentral | 1.78 (–3.26–14.17) | 23.0 (0.04*) | –6.94 (–16.37–3.45) | –26.0 (0.02*) |
| Left superior frontal | –0.008 (–3.58–5.14) | 7.0 (0.58) | –5.85 (–16.06–5.69) | –26.0 (0.02*) |
| Left lateral occipital | 2.98 (–1.55–9.68) | 28.0 (0.01*) | –3.84 (–15.73–1.73) | –30.0 (0.005**) |
| Right postcentral | 1.46 (–4.98–10.33) | 10.0 (0.41) | –4.1 (–29.01–3.24) | –28.0 (0.01*) |
| Right precuneus | 1.91 (–3.8–11.27) | 18.0 (0.12) | –3.26 (–15.39–3.0) | –25.0 (0.02*) |
| Right precentral | 2.9 (–8.7–8.09) | 15.0 (0.21) | –2.82 (–15.08–0.38) | –29.0 (0.007**) |
| Right inferior parietal | 1.42 (–2.56–9.45) | 17.0 (0.15) | –5.34 (–16.6–2.26) | –27.0 (0.01*) |
| Right superior temporal | 0.9 (–4.78–4.78) | 12.0 (0.32) | –3.57 (–17.86–0.17) | –30.0 (0.005**) |
| Right paracentral | –0.16 (–6.86–9.16) | 8.0 (0.52) | –5.03 (–18.97–1.94) | –28.0 (0.01*) |
| Regions of interest | ||||
| Left hippocampus | 38.1 (–116.1–117.3) | 11.0 (0.37) | –2.8 (–84.4–71.0) | –8.0 (0.52) |
| Right hippocampus | 32.4 (–29.2–101.2) | 24.0 (0.03*) | –13.6 (–111.1–54.1) | –15.0 (0.20) |
| Left amygdala | –22.2 (–51.0–97.2) | –6.0 (0.63) | 5.3 (–57.7–68.0) | 12.0 (0.32) |
| Right amygdala | 37.7 (–67.2–79.9) | 9.0 (0.46) | –0.9 (–79.2–155.7) | –2.0 (0.90) |
Cluster and ROI changes in GMV within the yoga and the MET groups. *p < 0.05; **p < 0.01.