Karl Ulrich Smith was an American physiologist, psychologist and behavioral cybernetics.

He dealt among others with the interaction between humans and technology and played a crucial role in the development of human factors which deals with the safe and humane or healthy design of products, work equipment and work systems.

Works

• Karl U Smith; William M Smith: The behavior of man; introduction to psychology. New York: Holt, Rinehart and Winston, 1958.
• Karl U Smith; William M Smith: Workbook for the behavior of man : introduction to psychology. New York: Holt, Rinehart and Winston, 1958.
• Karl U Smith: Delayed sensory feedback and behavior. Philadelphia ; London : W.B. Saunders Co., 1962.
• Karl U Smith; William Milton Smith: Perception and motion : an analysis of space-structured behavior. Philadelphia: Saunders, 1962.
• Karl U Smith; Margaret Foltz Smith: Cybernetic principles of learning and educational design. New York: Holt, Rinehart and Winston, 1966.
• Karl U Smith; Margaret Foltz Smith: Psychology; an introduction to behavior science. Boston: Little, Brown, 1973.