Timothy C. Brock has published articles and book chapters on a wide variety of topics in the psychology of persuasion, including effects of salesperson-consumer similarity on purchasing behavior; the role of cognitive responses in determining acceptance of persuasive messages; processing of unintelligible persuasive messages; and the effect of cognitive tuning on attitude change persistence.nbsp; He has authored, coauthored, and edited nine books, most on attitudes and persuasion.nbsp; Dr. Brock is currently Professor of psychology at Ohio State University.