Fig 5. Boxplot of the SI thickness in patients with FTLD and AD and control subjects. The line across the box represents the median value. The box ends represent the first and third quartiles. The end points of each graph represent the smallest and largest values. The median SI thickness tends to be lower in the AD group of patients compared with the FTLD group of patients and control subjects. Note the considerable overlap of the values between the patients with FTLD and control subjects.