Ibotenic acid lesions of the basal forebrain cholinergic system retard amygdala kindling

The effect of ibotenate lesions of septum and substantia innominata on electrical kindling of the amygdala was investigated in rats. The lesions significantly retarded kindling in the absence of a change in initial seizure sensitivity. This suggests that cholinergic neurotransmission can contribute to, but is not crucial for, amygdala kindling, and that a major component of the cholinergic circuitry involved in amygdala kindling may originate in the septum or substantia innominata or both.