Principle Diffusion Direction Imaging Method Explained

Principal Diffusion Direction uses colors to map out the different directions that water molecules diffuse through the brain's white matter. This data is then used to reconstruct 3d representations of white matter tracts.

The colors are used to represent the spatial orientation of the fiber pathways: red is left-to-right in the brain, green is anterior-to-posterior, and blue is inferior-to-superior, in other words, RGB translated to XYZ.

Directed and written by Amanda Hammond. Animation by Carlos Mena. Narration and Music by Ellen Armour. Scientific Consultation by Arthur W. Toga, Ph.D

http://www.humanconnectomeproject.org/