headshot photo of Dr. Shannon Sheppard

Dr. Shannon Sheppard

Assistant Professor
Crean College of Health and Behavioral Sciences; Communication Sciences and Disorders
Office Location: Building 9401, Rinker Campus 290C
Phone: 714-516-4516
Education:
Chapman University, Bachelor of Arts
San Diego State University, Ph.D.

Biography

Dr. Shannon M. Sheppard is an Assistant Professor of Communication Sciences & Disorders at Chapman University. Dr. Sheppard is the Director of the Cognitive Rehabilitation And Neurolinguistics In Aphasia Lab (CRANIAL). She received her PhD in Language & Communicative Disorders from the Joint Doctoral Program at University of California, San Diego and San Diego State University. Her doctoral research used eye-tracking and event-related brain potentials to illuminate the specific linguistic and cognitive processes that contribute to sentence comprehension impairments in chronic stroke. She completed her postdoctoral fellowship in the Department of Neurology at Johns Hopkins School of Medicine in Dr. Argye Hillis’s Stroke Cognitive Outcomes and REcovery (SCORE) Lab. The overarching aim of Dr. Sheppard’s research is to gain an understanding of the underlying language and cognitive deficits in patients who have had strokes or neurodegenerative diseases like Alzheimer’s Disease and Frontotemporal Degeneration. Breakdowns in language processing are investigated using several methods including, electroencephalography (EEG) and event-related potentials (ERPs), and magnetic resonance imaging (MRI).
 
Currently Dr. Sheppard is working to develop treatments using traditional language therapy paired with brain stimulation techniques to improve and maintain language functioning in stroke-based aphasia and Primary Progressive Aphasia (PPA). PPA is a syndrome resulting from neurodegenerative diseases that leads to the progressive loss of language function. She also researches behavioral and neurological changes resulting from right hemisphere strokes or neurodegenerative diseases with a focus on emotional prosody deficits. The ultimate goal of her research is to inform the development of novel evidence-based treatments designed to best enhance language outcomes in adults experiencing neurogenic language and communication disorders.

Recent Publications

Sheppard, S.M., Keator, L.M., Breining, B.L., Wright, A.E., Saxena, S., Tippett, D.C., & Hillis, A.E. (In Press). Right hemisphere ventral stream for emotional prosody identification: Evidence from acute stroke. Neurology.

Sheppard, S.M., Love, T., Midgley, K., Shapiro, L., & Holcomb, P. (2019). Using prosody during sentence processing in aphasia: Evidence from temporal neural dynamics. Neuropsychologia, 134, 107197.

Kim, K., Adams, L., Keator, L. M., Sheppard, S. M., Breining, B. L., Rorden, C., ... & Hickok, G. (2019). Neural processing critical for distinguishing between speech sounds. Brain and language, 197, 104677.

Tippett, D.C., Breining, B., Goldberg, E., Meier, E., Sheppard, S.M., Sherry, E., ... & Hillis, A.E. (2019). Visuomotor figure construction and visual figure delayed recall and recognition in primary progressive aphasia. Aphasiology, 1-15.

Keator, L. M., Wright, A. E., Saxena, S., Kim, K., Demsky, C., Sebastian, R., Sheppard,S.M., ... & Tippett, D. C. (2019). Distinguishing logopenic from semantic & nonfluent variant primary progressive aphasia: Patterns of linguistic and behavioral correlations. Neurocase, 25(3-4), 98-105.

Odolil, A., Wright, A.E., Keator, L.M., Sheppard, S.M., Breining, B., Tippett, D.C., & Hillis, A.E. (2019). Leukoaraiosis severity predicts rate of decline in primary progressive aphasia. Aphasiology, 1-11.

Wright, A., Saxena, S., Sheppard, S.M., & Hillis, A.E. (2018). Selective impairments in components of affective prosody in neurologically impaired individuals. Brain and Cognition, 124, 29-36.

Sheppard, S.M., Midgley, K.J., Love, T., Shapiro, L.P., & Holcomb, P.J. (2018). Electrophysiological evidence for the interaction of prosody and thematic fit during sentence comprehension. Language, Cognition and Neuroscience, 33(5), 547-562.

Patel, S., Oishi, K., Wright, A., Sutherland-Foggio, H., Saxena, S., Sheppard, S.M., & Hillis, A.E. (2018). Right hemisphere regions critical for expression of emotion through prosody. Frontiers in Neurology, 9, 224.

Sheppard, S.M., Love, T., Midgley, K.J., Holcomb, P.J., & Shapiro, L.P. (2017). Electrophysiology of prosodic and lexical-semantic processing during sentence comprehension in aphasia. Neuropsychologia, 107, 9-24.

Sheppard, S.M., Walenski, M., Love, T., & Shapiro, L.P. (2015). The auditory comprehension of wh-questions in aphasia: Support for the intervener hypothesis. Journal of Speech, Language, and Hearing Research, 58(3), 781-797.