PHILADELPHIA: Lincoln National Corporation has named Priscilla Brown VP and director of corporate communications, investor relations, and corporate public involvement.This is a newly expanded executive position with responsibilities that include managing corporate communications. Lincoln National is the parent company of the Lincoln Financial Group (LFG). Brown has been at LFG for 13 years. Since 1999, she has been the company's main contact for Wall Street, a responsibility she will continue to have. "Her long history with LFG and its business units, and her extensive experience within the financial-services industry provide unique perspective and invaluable knowledge," said Jon Boscia, chairman and CEO.