Sheridan works part time for the School of Allied Health, teaching in the area of multimodal communication. She has extensive clinical experience in the area of complex communication, with a research focus on interactions with people with profound intellectual and multiple disabilities. Sheridan is on the International Association for Scientific Study of Intellectual and Developmental Disabilities, Profound Intellectual and Multiple Disability Special Interest Group's executive committee. She has presented nationally and internationally, and contributes frequently to magzines and social media in this area. Sheridan has worked with adults and children using a wide variety of communication techniques including electronic communication devices, communication books, signs and gestures, and non-symbolic communication means.