Interamygdaloid connection of basolateral nucleus through the anterior commissure in the rat

Basolateral amygdaloid nucleus interconections through the anterior commissure (ac) are well visualized using wheat germ agglutinin-horseradish peroxidase tracer (WGA-HRP) in control animals. On the other hand, few neurons in the contralateral basolateral amygdaloid nucleus were labeled when the WGA-HRP was injected after a complete transection of the anterior commissure. These results indicate that the basolateral nucleus projects through the anterior commissure to the homologous amygdaloid nucleus in the contralateral hemisphere. (C) 2004 Elsevier Ireland Ltd. All rights reserved.