Fig. 2. Box and violin plots of the quantitative brainstem MRI measures.
Data is represented with a box plot (box edges: first 25th percentile quartile to third 75th percentile quartile; red line: median; black line: mean; whisker length: 1.5 times the interquartile range; red crosses: outlier data), a violin plot showing the histogram distribution, and individual scatter points of each subject’s quantitative measures. a SNc NM CR, b SNc NM nVol, c LC NM CR, d LC NM nVol, e SNc iron CR, f SNc iron nVol, g RN iron CR, and h RN iron nVol. Red lines represent the median and black lines represent the mean, whereas gray horizontal lines indicate statistically significant differences between groups (*p < 0.05, **p < 0.001, corrected for multiple testing).
