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Word\u2010finding complaints, confrontation naming, semantic fluency, phonemic fluency and word\u2010knowledge were evaluated.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>Complaints about forgetting the names of objects appeared in early tau stages (Braak 1\u20132), followed by naming difficulties (Braak 3\u20134), and widespread language impairments in later stages (Braak 5\u20136). Across the biologically\u2010defined AD continuum, lower language performance was associated with tau accumulation predominantly in left\u2010temporal language regions. In CU, only subjective word\u2010finding complaints related to tau, indicating language concerns could reflect underlying pathology before measurable cognitive decline.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>DISCUSSION<\/jats:title>\n                    <jats:p>Language measures support early detection and staging of AD pathophysiology and contribute to better align cognitive assessment with biological definitions of the disease.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/alz.71286","type":"journal-article","created":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T10:02:16Z","timestamp":1773309736000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Language deficits across PET\u2010based Braak stages of tau accumulation in Alzheimer's disease"],"prefix":"10.1002","volume":"22","author":[{"given":"Anna","family":"Marier","sequence":"first","affiliation":[{"name":"Douglas Research Centre  Montr\u00e9al Quebec Canada"},{"name":"Department of Psychology Universit\u00e9 de Montr\u00e9al  Montr\u00e9al Quebec Canada"},{"name":"Department of Neurology and Neurosurgery McGill University  Montr\u00e9al Quebec Canada"},{"name":"McGill University Research Centre for Studies in Aging  Montr\u00e9al Quebec Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jaime","family":"Fern\u00e1ndez Arias","sequence":"additional","affiliation":[{"name":"Department of Neurology and Neurosurgery McGill University  Montr\u00e9al Quebec Canada"},{"name":"McGill University Research Centre for Studies in Aging  Montr\u00e9al Quebec Canada"},{"name":"Montr\u00e9al Neurological Institute\u2010Hospital  Montr\u00e9al Quebec 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