Convulsions were repeatedly caused by electrical stimulation in rabbits. Total free amino acids contents in these rabbits showed no fluctation, while glucose metabolism decreased like as in those with latent cerebral local anaphylaxis and human epileptics. The glucose utilization was cured to normal level by continuing injection of Glutamic acid, GABA, and Asparagine, but total amino-N changed scarecely. It is an important fact, that free amino-N content increased by GABA injection in rabbits with convulsion.