A golgi study of the amygdaloid complex in the cat.

The neuronal structure of the amygdaloid complex was studied in cat with Golgi-Kopsch perfusion technique. Four types of neurons were distinguished: the projective neurons (longaxonal), with the structure being different in the area anterior, corticomedial and basolateral parts of amygdala; the Golgi IIa neurons (shortaxonal), observed in all nuclei of the amygdala; the Golgi IIb neurons (mediumaxonal), mostly observed in the dorsal part of the lateral nucleus; the Golgi IIc, neuroglioform type of neurons with short but very profusely arborized axons, present exclusively in the ventrolateral area of the basolateral part of amygdala. In addition, some afferent fibers have been visualized in the basolateral part of amygdaloid complex.