Year II and Growing: A Report from the STC Special Needs Committee: The Nature of Deafness
http://www.stc.org/confproceed/2001/PDFs/STC48-000082.PDF

Malcolm, Andrew
STC Proceedings
2001

Abstract:

Deaf persons are not a monolithic group. Persons born deaf or who become deaf before learning the language of their environment (prelingual deafness) have a significant educational challenge as well as a communication challenge. Other deaf persons have a communication challenge. Deaf persons may be divided into five categories. For the purposes of this paper the categories are prelingual deafness, prelingual hard-of-hearing, postlingual deafness, postlingual hard-of-hearing, and presbyacusis. (oldage deafness) Each of these categories are discussed in detail including the characteristics of persons within the categories, and the nature of the problems they encounter.