ARNOLD TREHUB (1923-2017) was born in Malden, Mass., in 1923. He was an active and well-respected cognitive scientist and researcher; he was also a World War II veteran and artist. Trehub earned his BA from Northeastern University and his PhD (Clinical Psychology) from Boston University, though his undergraduate education was interrupted by the World War II. Trehub enlisted in the U.S. Army Air Forces in 1943 and served in the Pacific Theater as a radio technician for B-29 bombers, two of which were the Enola Gay and Bockscar. For most of his professional life, Trehub was the director of a research lab at the Veterans Administration Hospital in Leeds, Mass., and an adjunct professor at the University of Massachusetts Amherst. His research on the neurophysiology of the human brain and the nature of consciousness appeared in numerous journals, edited volumes, and online forums, including?Edge; his best-known work, The Cognitive Brain, was published by MIT Press in 1991. Trehub was a resident of Amherst since 1954 and passed away on April 3rd, 2017.