When the word doesn't come out: A synthetic overview of dysarthria

L Rampello, L Rampello, F Patti, M Zappia - Journal of the neurological …, 2016 - Elsevier
Motor speech disorders are common in a number of neurological conditions including
diseases involving impairment of the pyramidal, extrapyramidal, and cerebellar pathways …

Communication limitations in patients with progressive apraxia of speech and aphasia

RL Utianski, HM Clark, JR Duffy, H Botha… - American Journal of …, 2020 - ASHA
Purpose Individuals with primary progressive apraxia of speech (AOS) have AOS in which
disruptions in articulation and prosody predominate the speech pattern. Many develop …

Assessing oromotor capacity in ALS: The effect of a fixed-target task on lip biomechanics

M Eshghi, KL Stipancic, A Mefferd, P Rong… - Frontiers in …, 2019 - frontiersin.org
Alternating motion rate (AMR) is a standard measure often included in neurological
examinations to assess orofacial neuromuscular integrity. AMR is typically derived from …

Acoustic analysis and neuroimaging correlates of diadochokinetic rates in mild-moderate primary progressive apraxia of speech

KA Josephs, JR Duffy, PR Martin, YC Stephens… - Brain and language, 2023 - Elsevier
Speech rate can be judged clinically using diadochokinetic (DDK) tasks, such as alternating
motion rates (AMR) and sequential motion rates (SMR). We evaluated whether acoustic …

A preliminary look into the clinical evolution of motor speech characteristics in primary progressive apraxia of speech in Québec French

L Bouvier, L Monetta, P Vitali, R Laforce Jr… - American Journal of …, 2021 - ASHA
Purpose 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 …

Clinical and imaging progression over 10 years in a patient with primary progressive apraxia of speech and autopsy-confirmed corticobasal degeneration

KA Tetzloff, JR Duffy, EA Strand, MM Machulda… - Neurocase, 2018 - Taylor & Francis
Primary progressive apraxia of speech (PPAOS) is a neurodegenerative disorder in which
AOS is the sole presenting complaint. We report clinical and neuroimaging data spanning …

Tracking the development of agrammatic aphasia: A tensor-based morphometry study

JL Whitwell, JR Duffy, MM Machulda, HM Clark… - Cortex, 2017 - Elsevier
Agrammatic aphasia can be observed in neurodegenerative disorders and has been
traditionally linked with damage to Broca's area, although there have been disagreements …

Bilingual Primary Progressive Aphasia: A Scoping Review of Assessment and Treatment Practices

SM Grasso, CA Wagner Rodríguez… - Journal of …, 2023 - content.iospress.com
Background: Primary progressive aphasia (PPA) is a neurodegenerative syndrome
characterized by speech and/or language impairment with relatively spared cognition …

A diagnostic marker to discriminate childhood apraxia of speech from speech delay: IV. The pause marker index

LD Shriberg, EA Strand, M Fourakis, KJ Jakielski… - Journal of Speech …, 2017 - ASHA
Purpose Three previous articles provided rationale, methods, and several forms of validity
support for a diagnostic marker of childhood apraxia of speech (CAS), termed the pause …

Segmental and prosodic variability on repeated polysyllabic word production in acquired apraxia of speech plus aphasia

DI Scholl, PJ McCabe, R Heard, KJ Ballard - Aphasiology, 2018 - Taylor & Francis
Background: McNeil and colleagues argued that individuals with pure apraxia of speech
(AOS) have low variability of speech error type and error location within repeated …