Bellis is one of the world’s leading authorities on Auditory Processing Disorders (APDs) and author of "When the Brain Can't Hear: Unraveling the Mystery of Auditory Processing Disorder" (Atria Books 2002) and "Assessment and Management of Central Auditory Processing Disorders in the Educational Setting From Science to Practice, Second Edition" (Thomson Delmar Learning/Singular Audiology Text).

Bellis is professor and chair, Department of Communication Disorders, and Director of Speech-Language-Hearing Clinicsat The University of South Dakota. Throughout her professional career, Bellis has received a number of distinguished honors and recognitions. Her knowledge and expertise has taken her across the globe, and her research and prolific writings have been featured in numerous academic and medical publications—including the prestigious Journal of Neuroscience. Bellis is widely considered the authoritative resource for parents and professionals on the diagnosis, treatment and management of APDs, and, as a result, she is a highly sought-after participant on the professional speaker’s circuit.

APDs are often considered the auditory equivalent of dyslexia—a language-based learning disability that impacts a person’s ability to learn to read, write and spell. In fact, these two disabilities are often found to coexist, multiplying learning challenges for students, and teaching challenges for educators, and speech and language professionals.

A photo of Bellis is available for download at

Press Contact
Hanna DeLange
Contact Email
Contact Website website