An influential psychiatrist who was the host of the popular public radio program “The Infinite Mind” earned at least $1.3 million from 2000 to 2007 giving marketing lectures for drugmakers, income not mentioned on the program. The psychiatrist and radio host, Dr. Frederick K. Goodwin, is the latest in a series of doctors and researchers whose ties to drugmakers have been uncovered by Senator Charles E. Grassley, Republican of Iowa. Dr. Goodwin, a former director of the National Institute of Mental Health, is the first news media figure to be investigated. Dr. Goodwin’s weekly radio programs have often touched on...