CNN: "In the research behind an article titled "Executive
Control of Cognitive Processes in Task Switching"
-- being published Monday in the American
Psychological Society's Journal of Experimental Psychology: Human Perception and Performance --
Rubenstein and his associates David Meyer, Ph.D., and Jeffrey Evans, Ph.D., determined that for all types of
tasks, subjects lost time when they had to switch from one task to another."
August 6, 2001