 She has been a visiting scholar at Harvard University, Stanford University, and at the Linguistics Institute of the Hungarian Academy of Sciences.Although officially retired and no longer teaching, she to be involved in research.Gleason is the author or coauthor of some 125 papers on language development in children, language attrition, aphasia, and gender and cultural aspects of language acquisition and use;
and is editor/coeditor of two widely used textbooks, "The Development of Language" (first edition 1985, ninth edition 2016) and "Psycholinguistics" (1993).