Fig 2. Non-metric multidimensional scaling (NMDS) of ADHD samples and healthy controls.

NMDS is an unconstrained, distance-based ordination method which was performed with Bray-Curtis dissimilarity. Points represent samples. Samples that are more similar to one another are ordinated closer together. ADHD patients are plotted as red triangles, and controls are represented as green dots. The groups show significant differences in similarity tested by ANOSIM (p_ANOSIM = 0.033).