Michael Seidman, M.D., Henry Ford Hospital (image) Henry Ford Health System Share Print E-Mail Caption A new study from Henry Ford Hospital in Detroit finds a strong correlation between brain dominance and the ear used to listen to a cell phone, with more than 70 percent of participants holding their cell phone up to the ear on the same side as their dominant hand. Credit Henry Ford Health System Usage Restrictions For use with news about Dr. Seidman's study. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.