1. Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA
2. Frist Center for Autism and Innovation, Vanderbilt University, Nashville, TN 37212, USA
3. Neuroscience Undergraduate Program, Vanderbilt University, Nashville, TN 37212, USA
4. Present address: Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, WI 53226, USA
5. Present address: Department of Pediatrics, University of Illinois, Chicago, IL 60612, USA
6. Present address: Department of Pediatrics, Los Angeles County and University of Southern California (LAC + USC) Medical Center, University of Southern California, Los Angeles, CA 90033, USA
7. Present address: Department of Anesthesiology, Columbia University Irving Medical Center, New York, NY 10032, USA
8. Vanderbilt Kennedy Center, Vanderbilt University Medical Center, Nashville, TN 37203, USA
9. Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37240, USA