Aminobutyric acid
Eugene Roberts (January 19, 1920 – November 8, 2016) was an American neuroscientist. In 1950, he was the first to report on the discovery of gamma-Aminobutyric acid (GABA) in the brain, and his work was key in demonstrating GABA as the main inhibitory neurotransmitter in the mammalian central nervous system.