Sensorimotor Cortex Reorganization in Alzheimer's Disease and Metal Dysfunction: A MEG Study
Figure 2
M20 and M30 ECD positions. Positions of individual M20 (top) and M30 (bottom) ECDs in healthy controls (empty dot) and AD patients (black dot) and of the average across the two groups (larger circles) projected on a representative axial graphic rendering in the region of the hand control. Right side: spatial coordinate system: the -axis runs through the midpoint between the subject’s preauricular points and his/her nasion; the -axis is the line perpendicular to the -axis that passes through the vertex; the -axis is the line perpendicular to both and -axes that runs through their intersection. The intersection of the -, - and -axes is the origin of the subject-based coordinate system, and is positive on the head’s right side, towards the nasions and towards the vertex.
