Augmentative and Alternative Communication Lab: Selected Publications

Research Aims

The AAC Lab's aim is to improve the efficacy of augmentative and alternative communication intervention for persons with severe speech and language impairment as a result of developmental and acquired conditions. Our research primarily focuses on adults with neurogenic communication disorders such as aphasia and children diagnosed with autism and other developmental disabilities. We study the variables that influence the outcomes of such interventions, including symbol identification, the perception of synthetic speech, dynamic display configurations, and alternative access methods such as eye-tracking and brain-computer interface systems.

Selected Peer-reviewed Publications

Brock, K., Koul, R., Corwin, M., & Schlosser, R. (2017). A comparison of visual scene and grid displays for people with chronic aphasia: a pilot study to improve communication using AAC. Aphasiology, DOI: 10.1080/02687038.2016.1274874.


Alzrayer, N., Banda, D., & Koul, R. (2017). Teaching children with autism spectrum disorder and other developmental disabilities to perform multistep requesting using an ipad. Augmentative and Alternative Communication, 33, 65-76.


Schlosser, R.W., & Koul, R. (2015). Speech output technologies in interventions for individuals with Autism Spectrum Disorders:  A scoping review. Augmentative and Alternative Communication, 31, 285-309.  


Schlosser, R. W., Koul, R., Shane, H., Sorce, J., Brock, K., Harmon, A., Moerlein, M. & Hearn, E. (2014). Effects of animation on naming and identification across two graphic symbols sets representing actions and prepositions. Journal of Speech, Language, and Hearing Research, 57, 1779-1791.


See Complete List

Alzrayer, N., Banda, D., & Koul, R. (2014), Use of ipad/ipods with individuals with autism and other developmental disabilities: A meta-analysis of communication interventions. Review Journal of Autism and Developmental disorders. 1, 179-191. 


Corwin, M., Wells, M., Koul, R., & Dembowski, J. (2014).  Computer-assisted anomia treatment for persons with chronic aphasia:  Generalization to untrained words.  Journal of Medical Speech-Language Pathology. 21, 149-163


Petroi, D., Koul, R., Corwin, M. (2014). Effect of number of graphic symbols, levels, and listening conditions on symbol identification and latency in persons with aphasia. Augmentative and Alternative Communication, 30, 40-54


Koul, R., Dietz, A., Corwin, M., & Wallace, S. (2012).  AAC and aphasia:  Science and clinical practice. Proceedings of the 2012 International Society for Augmentative and Alternative Communication (ISAAC) Research Symposium (pp. 7-25). Pittsburgh, PA.