The single peak of gamma activity for each stimulus position in monkey #2 was par ticularly interesting because the electrode array overlapped extensively the lunate sulcus.
The lesion can be seen in these images as the lighter region between the lunate and superior temporal sulci.
The skull was opened over the midline, and a small (5 mm) window made in the dura over the lunate sulcus near the hemispheric midline.
The animal's head was fixed in a stereotaxic frame, and a small craniotomy was made over the lunate sulcus.
About one-third of lunate bones do not possess a medial facet, meaning they do not articulate with the hamate bone.
The aperture is oblique and lunate, peristome russet, expanded and well thickened.
Some varieties are crude with lunate sigmas and square omicrons.
The aperture is lunate, narrow, subvertical, milky white within, rounded below.
