By far the most important resource is The Talk Bank / Dementia Bank: http://talkbank.org/DementiaBank/
It describes itself as “a shared database of multimedia interactions for the study of communication in dementia.”
Also very promising is the Carolina Conversation bank http://carolinaconversations.musc.edu/about/ Features of the corpus support both short-term and long-term research objectives, for specialists in communications disorders and gerontology, information technology, medical and health care researchers from multiple professions, linguists, psychologists, and archivists.
---------<>--------- Randy Allen Harris Linguistics, rhetoric, communication design Department of English Language and Literature, uWaterloo Waterloo ON Canada N2L 3G1 HH247, 519.888.4567, x35362 FB & Twitter: ProfRaha www.arts.uwaterloo.ca/~raha<https://connect.uwaterloo.ca/owa/redir.aspx?C=zU4cAlg4_WgCmj3knfb5ujo6g_PUk616iY4R6kdSoBNpkHmNK1XUCA..&URL=http%3a%2f%2fwww.arts.uwaterloo.ca%2f%7eraha>
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