Aw. Toga et Em. Santori, 3D SPATIAL RELATIONSHIPS OF HISTOCHEMICAL ACTIVITY IN THE RAT SUPERIOR COLLICULUS, European journal of morphology, 33(1), 1995, pp. 71-79
Recent evidence points to the existence of lattices of acetylcholinest
erase (AChE) and cytochrome oxidase (CYO) in deep layers of the superi
or colliculus. We sought to further describe their localization within
the rat superior colliculus using new three dimensional (3D) digital
imaging techniques. Texture maps of AChE staining within the stratum g
riseum intermediale (SGI) suggest a sheet of high enzyme activity punc
tuated by areas of pallor. This lattice of dense staining covered the
caudal end of the colliculus and extended rostrally along the medial b
ank. Discrete regions of low staining were most apparent within the IV
c subdivision of SGI. A similar examination of CYO activity failed to
reveal any compartmentalization.