Fig. 6.

First three principal directions (top to bottom) of cluster-wise variability (left to right) in THDPs for each modality. Blue = − 2 standard deviations (sd); green = − 1 sd; red = mean; cyan = + 1 sd; magenta = + 2 sd. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)