Four artists who collaborated on the "Dead Air" exhibition will take part in a panel discussion moderated by Karen Schiff. The speakers include Anthony Bragg, a graduate of the Rhode Island School of Design whose abstract drawings, paintings and sculptures can take on multiple meaning; Cooper Holoweski, a graduate of RISD whose recent works includes a video about an 'evolutionary failure' of a rock; Martin Smick, a faculty member at RISD who teaches courses on painting and pattern design; and Ziyang Wu, a visiting professor at the Minneapolis College of Art and Design whose digital videos include "The Last Subway" and "The Story of the Pig." The exhibition will be on display beginning May 12 through June 8 in the Cohen gallery. The event begins at 4:30 p.m. in the Granoff Center Center for the Creative Arts, Englander Studio, 154 Angell St.