Title : Phonological markers of sentence stress in ataxic dysarthria and their
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Phonological markers of sentence stress in ataxic dysarthria and their relationship to perceptual cues.
UNLABELLED A wide range of literature is available on the features of ataxic dysarthria, investigating segmental and prosodic characteristics by acoustic and perceptual means. However, very few studies have been published that look closely at the relationship between the observed phonetic disturbances and their perceptual sequelae, particularly in the area of prosody. The aim of the current stu...
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This study is the third in a series that has explored the source of intelligibility decrement in dysarthria by jointly considering signal characteristics and the cognitive-perceptual processes employed by listeners. A paradigm of lexical boundary error analysis was used to examine this interface by manipulating listener constraints with a brief familiarization procedure. If familiarization allo...
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This study examined how speakers with ataxic dysarthria produce sentence stress and how these findings relate to other measures of speech performance. Ten speakers with ataxia and ten control speakers performed maximum performance, sentence stress, and passage reading tasks. Perceptual analyses established intelligibility levels and accuracy of stress production. Acoustic analyses included F0, ...
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Previous studies suggested that variability indices based on information extracted from the acoustic signal are potentially useful in assessing dysarthric speech. Because of the ease of data collection, this method is especially applicable in the clinical setting. This study assessed the relationship between variability indices of sentence repetitions obtained by Functional Data Analysis with i...
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Acoustic analyses of sentence utterances noted slowed speech tempo, concomitant with a tendency towards syllable isochrony, in patients with impaired vocal tract control due to ataxic disorders. Furthermore, kinematic measurements revealed decreased maximum velocity of articulatory orofacial gestures with respect to a given movement amplitude. Syllable lengthening seems to develop into a platea...
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تاریخ انتشار 2014