Fig. 3
From: Brain lateralization in children with upper-limb reduction deficiency
a Adjustable headgear and channels arrangement. The headset was centered at the vertex (Cz) and lateral channels placed over the C3 and C4 motor cortex landmarks associated with motor activity of the hand and arm movements. Red rectangles show the adjustable Velcro straps used to accommodate different head sizes. b Visualization of headgear after virtual registration to subject brain model. Blue lines indicate placement of the headgear over the brain