Scene: Vector field model density at white/grey-matter boundary



study:
Modelling white matter in gyral blades as a continuous vector field

SCENE FILE:
track_gyral_wm

SCENE:
Vector field model density at white/grey-matter boundary

DESCRIPTION:
Figure 7A

Density of the vector field evaluated at the white/grey matter boundary (lighter colours indicate higher density). This shows the density of streamlines crossing the white/grey-matter boundary normalised by the cortical volume associated with each vertex.

Changing the map can be used to plot one of:
- the total density of streamlines at the white-grey matter boundary (irrespective of whether they are crossing or not)
- the radiality of the streamlines (dot-product between the normalised vector field and the surface normal)
- the x, y, and z components of the vector field

Note that the density of the vector field crossing the cortical surface is equal to product of the radiality and the vector field density at the surface (i.e., if the vector field is parallel to the surface, no fibres will cross the surface irrespective of the field density).

TAGS:
Surface Mesh:32k fs LR, Species:Human, Connectivity:Tracer Injection