Pelagie M Beeson

Pelagie M Beeson

Professor, Speech/Language and Hearing
Professor, Cognitive Science - GIDP
Department Head, Speech/Language and Hearing
Professor, BIO5 Institute
(520) 621-9879

Research Interest

My research is directed toward understanding the neural substrates of spoken and written language, as well as the nature and treatment of acquired impairments of language in adults. This includes the development and evaluation of behavioral treatment approaches for aphasia, alexia, and agraphia. In our lab, we work with adults with acquired language impairment due to brain damage associated with stroke, head injury, and progressive disease. Neurologically healthy adults participate as control subjects.


Henry, M. L., Beeson, P. M., Alexander, G. E., & Rapcsak, S. Z. (2012). Written language impairments in primary progressive aphasia: A reflection of damage to central semantic and phonological processes. Journal of Cognitive Neuroscience, 24, 261-75.
BIO5 Collaborators
Gene E Alexander, Pelagie M Beeson
Antonucci, S., Beeson, P., Labiner, D., & Rapcsak, S. (2008). Lexical retrieval and semantic knowledge in patients with left inferior temporal lobe lesions. Aphasiology, 22(3), 281-304.
Meinzer, M., Beeson, P. M., Cappa, S., Crinion, J., Kiran, S., Saur, D., Parrish, T., Crosson, B., & Thompson, C. K. (2013). Corrigendum to "Neuroimaging in aphasia treatment research: Consensus and practical guidelines for data analysis" [Neuroimage 73 (2013) 215-224]. NeuroImage, 81, 507.
Orjada, S. A., & Beeson, P. M. (2005). Concurrent treatment for reading and spelling in aphasia. Aphasiology, 19(3-5), 341-351.


Background: Behavioural treatments for impairments of written language have had positive therapeutic effects in patients with alexia and agraphia. However, few researchers have documented the effect of concurrent administration of treatments for reading and writing. Combined treatment has the potential to be an efficient means of rehabilitation for individuals with both reading and spelling impairments. Aims: The present study was designed to examine the therapeutic value of a concurrent treatment for reading and spelling. The goals of treatment were to increase reading accuracy and rate for text and to improve spelling accuracy for single words. Methods & procedures: An individual with chronic aphasia, alexia, and agraphia participated in the treatment, which consisted of a combination of Oral Reading Treatment (ORT) and Copy and Recall Treatment (CART) that was conducted for 10 weeks. Repeated probes at the beginning of each session were used to determine progress and maintenance of treatment gains. Additional language assessments were administered before and after treatment. Outcomes & results: Large treatment effects were obtained for reading accuracy of personally relevant scripts and spelling of targeted words, and gains were maintained on follow-up probes. Reading rate for practiced text also improved, but did not generalise when reading new text. Pre- and post-treatment measures indicated significant improvement in reading and spelling of functors not specifically targeted in treatment, and increased grammatical complexity of spoken language. In addition, oral language performance as measured by the Western Aphasia Battery (WAB) showed clinically significant improvement. Conclusions: Concurrent reading and spelling treatment was successful in this patient with moderate aphasia. It appears to be an efficient way to effect change in written and spoken language in individuals with aphasia. © 2005 Psychology Press Ltd.

Meinzer, M., Beeson, P. M., Cappa, S., Crinion, J., Kiran, S., Saur, D., Parrish, T., Crosson, B., & Thompson, C. K. (2013). Neuroimaging in aphasia treatment research: Consensus and practical guidelines for data analysis. NeuroImage, 73, 215-224.

PMID: 22387474;PMCID: PMC3416913