[Effect of destruction of individual nuclei of the amygdaloid complex on elaboration of avoidance reaction in rats].

Formation of one-trial passive avoidance reactions (PAR) after bilateral symmetrical ablations of some nuclei of the amygdala complex (AC) was studied in Wistar male rats. Some nuclei belonging to the corticomedial or basolateral group of AC nuclei were subjected to electrolythical ablation. It has been found that ablations of individual AC nuclei statistically significantly prevent PAR elaboration. The data obtained are interpreted from the standpoint of disturbance of the morpho-functional organization of the AC efferent systems.