This book is the product of a two-day symposium held at the University of Texas, Austin, in March 1978. There was double motivation for our hosting a symposium on neural mechanisms in behavior. The 1977-1978 academic year marked both the 50th anniversary of the Department of Psychology at Texas and the 30th anniversary of the famous Hixon Symposium organized by the longest serving member of the department, LLOYD JEFFRESS. PHILIP GOUGH, then chairman of the department, suggested that the department celebrate these two historic events, and honor itself in the process, by holding the first of a...