[1] San Diego State Univ, Sch Speech Language & Hearing Sci, San Diego, CA 92182 USA
[2] Univ Southern Calif, Keck Sch Med, USC Caruso Dept Otolaryngol Head & Neck Surg, Los Angeles, CA 90007 USA
[3] Univ Massachusetts, Coll Liberal Arts, Dept Psychol, Boston, MA 02125 USA
[4] Indiana Univ Sch Med, Dept Otolaryngol Head & Neck Surg, Indianapolis, IN 46202 USA
[5] Moravian Coll, Educ Dept, Bethlehem, PA USA