{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T04:01:59Z","timestamp":1788408119774,"version":"build-2803163510"},"reference-count":68,"publisher":"American Speech Language Hearing Association","issue":"3S","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am J Speech Lang Pathol"],"published-print":{"date-parts":[[2021,6,18]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>This study aimed to track changes in acoustical and perceptual features of motor speech in patients with phonetic and prosodic primary progressive apraxia of speech (PPAOS) in Qu\u00e9bec French over an 18-month period.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Method<\/jats:title>\n                    <jats:p>A prospective multiple-case series with multiple testing periods, including four participants with a diagnosis of PPAOS, was conducted. Participants were 0.5\u20134 years postonset of disease at baseline. They underwent comprehensive motor speech and language assessments and cognitive screening every 6 months for up to 18 months. Acoustical and perceptual analyses of motor speech were conducted.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Results showed a considerable impairment in motor speech abilities for patients with PPAOS at all time points and a significant decrease in performance for almost all articulatory and prosodic measures over time. Passage reading and diadochokinesis seemed particularly promising for the tracking of changes in PPAOS motor speech characteristics and PPAOS classification. Quantifying length of speech runs made it possible to distinguish phonetic from prosodic PPAOS. Finally, the patients who evolved to phonetic PPAOS developed aphasia, and the two with prosodic PPAOS showed greater motor symptoms such as unequivocal dysarthria.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>This study extends the growing literature on PPAOS and its subtypes by describing specific changes in articulatory and prosodic abilities over a period of at least 6 months, which are important for the diagnosis and management of PPAOS.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1044\/2020_ajslp-20-00162","type":"journal-article","created":{"date-parts":[[2021,3,9]],"date-time":"2021-03-09T21:51:07Z","timestamp":1615326667000},"page":"1459-1476","source":"Crossref","is-referenced-by-count":8,"title":["A Preliminary Look Into the Clinical Evolution of Motor Speech Characteristics in Primary Progressive Apraxia of Speech in Qu\u00e9bec French"],"prefix":"10.1044","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7239-7639","authenticated-orcid":false,"given":"Liziane","family":"Bouvier","sequence":"first","affiliation":[{"name":"D\u00e9partement de r\u00e9adaptation, Facult\u00e9 de M\u00e9decine, Universit\u00e9 Laval, Qu\u00e9bec, Canada"},{"name":"Centre Interdisciplinaire de Recherche en R\u00e9adaptation et Int\u00e9gration Sociale, Qu\u00e9bec, Canada"},{"name":"Centre de recherche CERVO Research Centre, Qu\u00e9bec, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4534-761X","authenticated-orcid":false,"given":"Laura","family":"Monetta","sequence":"additional","affiliation":[{"name":"D\u00e9partement de r\u00e9adaptation, Facult\u00e9 de M\u00e9decine, Universit\u00e9 Laval, Qu\u00e9bec, Canada"},{"name":"Centre de recherche CERVO Research Centre, Qu\u00e9bec, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8953-1542","authenticated-orcid":false,"given":"Paolo","family":"Vitali","sequence":"additional","affiliation":[{"name":"McGill University Research Centre for Studies in Aging, Montr\u00e9al, Canada"},{"name":"CIUSSS Nord-de-l'\u00cele-de-Montr\u00e9al, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2031-490X","authenticated-orcid":false,"suffix":"Jr.","given":"Robert","family":"Laforce","sequence":"additional","affiliation":[{"name":"D\u00e9partement des Sciences Neurologiques, Clinique Interdisciplinaire de M\u00e9moire, CHU de Qu\u00e9bec, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0152-0908","authenticated-orcid":false,"given":"Vincent","family":"Martel-Sauvageau","sequence":"additional","affiliation":[{"name":"D\u00e9partement de r\u00e9adaptation, Facult\u00e9 de M\u00e9decine, Universit\u00e9 Laval, Qu\u00e9bec, Canada"},{"name":"Centre Interdisciplinaire de Recherche en R\u00e9adaptation et Int\u00e9gration Sociale, Qu\u00e9bec, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1310","reference":[{"key":"e_1_3_2_2_1","doi-asserted-by":"publisher","DOI":"10.1201\/9780429258589"},{"key":"e_1_3_2_3_1","volume-title":"BECD: Batterie d'\u00e9valuation clinique de la dysarthrie [BECD: Clinical Assessment Battery for dysarthria]","author":"Auzou P.","year":"2006","unstructured":"Auzou, P. , & Rolland-Monnouryiane, V. 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