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Direct linkHaas, Elisabet; Ziegler, Wolfram; Schölderle, Theresa – Journal of Speech, Language, and Hearing Research, 2021
Purpose: The aim of this longitudinal study was to describe developmental courses of childhood dysarthria against the background of typical speech motor development by collecting auditory-perceptual data. Method: Fourteen children (four girls, 10 boys; 5;1-8;4 [years;months] at Time 1) with neurological conditions (CNC) and 14 typically developing…
Descriptors: Speech Impairments, Speech Communication, Comparative Analysis, Child Development
Staiger, Anja; Finger-Berg, Wolf; Aichert, Ingrid; Ziegler, Wolfram – Journal of Speech, Language, and Hearing Research, 2012
Purpose: Error variability has traditionally been considered a hallmark of apraxia of speech (AOS). However, in some of the current AOS literature, relatively invariable error patterns are claimed as a mandatory criterion for a diagnosis of AOS. This paradigm shift has far-reaching consequences for our understanding of the disorder and for its…
Descriptors: Neurological Impairments, Speech Impairments, Error Patterns, Patients
Staiger, Anja; Ruttenauer, Anna; Ziegler, Wolfram – Language and Cognitive Processes, 2010
The term "phrase-level reduction" refers to transformations of the phonetic forms of words in connected speech. They are a characteristic property of fluent speech in normal speakers. Phrase-level reductions contribute to a reduction of articulatory-motor effort and constitute an important aspect of speech naturalness. So far, these phenomena have…
Descriptors: Investigations, Speech, Phonetics, Speech Impairments
Ziegler, Wolfram; Zierdt, Andreas – Journal of Communication Disorders, 2008
Background: A most important index of functional impairment in dysarthria is "intelligibility". The "Munich Intelligibility Profile" (MVP) is a computer-based method for the assessment of the intelligibility of dysarthric patients. A multi-user online version of MVP is now available. Aims: To describe the structure of…
Descriptors: Testing, Test Reliability, Patients, Program Effectiveness
Schmid, Gabriele; Thielmann, Anke; Ziegler, Wolfram – Clinical Linguistics & Phonetics, 2009
Patients with lesions of the left hemisphere often suffer from oral-facial apraxia, apraxia of speech, and aphasia. In these patients, visual features often play a critical role in speech and language therapy, when pictured lip shapes or the therapist's visible mouth movements are used to facilitate speech production and articulation. This demands…
Descriptors: Articulation (Speech), Speech Impairments, Imitation, Patients
Aichert, Ingrid; Ziegler, Wolfram – Brain and Language, 2004
Recent accounts of the pathomechanism underlying apraxia of speech (AOS) were based on the speech production model of Levelt, Roelofs, and Meyer, and Meyer (1999)1999. The apraxic impairment was localized to the phonetic encoding level where the model postulates a mental store of motor programs for high-frequency syllables. Varley and Whiteside…
Descriptors: Patients, Syllables, Articulation (Speech), Speech Impairments
