Journal ArticleDOI
Frequency of consonant articulation errors in dysarthric speech
TLDR
A two-part model of consonant articulation errors is proposed for CP-associated spastic dysarthia based on results showed that target phonemes with high articulatory complexity were most often misarticulated, independent of intelligibility, but low-intelligibility speakers reduced the complexity of target consonants more frequently.Abstract:
This paper analyses consonant articulation errors in dysarthric speech produced by seven American-English native speakers with cerebral palsy. Twenty-three consonant phonemes were transcribed with diacritics as necessary in order to represent non-phoneme misarticulations. Error frequencies were examined with respect to six variables: articulatory complexity, place of articulation, and manner of articulation of the target phoneme; and change in articulatory complexity, place, and manner resulting from the misarticulation. Results showed that target phonemes with high articulatory complexity were most often misarticulated, independent of intelligibility, but low-intelligibility speakers reduced the complexity of target consonants more frequently. All speakers tended to misarticulate to the adjacent place of the target place, but this pattern was most prominent for high-intelligibility speakers. Low- and mid-intelligibility speakers produced more manner errors than high-intelligibility speakers. Based on these results, a two-part model of consonant articulation errors is proposed for CP-associated spastic dysarthia.read more
Citations
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Journal ArticleDOI
Motor Speech Disorders
TL;DR: The neurologist will find the chapters on principles of neurologic function and hierarchy of motor organization rather basic and many speech pathologists may find the section on motor speech examination somewhat devoid of detail.
Journal ArticleDOI
Development of The Viking Speech Scale to classify the speech of children with cerebral palsy
Lindsay Pennington,Daniel Virella,Tone R. Mjøen,Maria da Graça Andrada,Janice Murray,Allan Colver,Kate Himmelmann,Gija Rackauskaite,Andra Greitane,Audrone Prasauskiene,Guro L. Andersen,Javier De La Cruz +11 more
TL;DR: It is concluded that the Viking Speech Scale is a reliable tool to describe the speech performance of children with cerebral palsy, which can be applied through direct observation of children or through case note review.
Journal ArticleDOI
Automatic intelligibility classification of sentence-level pathological speech.
TL;DR: This work proposes novel sentence-level features to capture abnormal variation in the prosodic, voice quality and pronunciation aspects in pathological speech and proposes a post-classification posterior smoothing scheme which refines the posterior of a test sample based on the posteriors of other test samples.
Journal ArticleDOI
Regularized Speaker Adaptation of KL-HMM for Dysarthric Speech Recognition
TL;DR: A speaker adaptation method based on a combination of L2 regularization and confusion-reducing regularization, which can enhance discriminability between categorical distributions of the KL-HMM states while preserving speaker-specific information is proposed.
Journal ArticleDOI
Impact of sentence length and phonetic complexity on intelligibility of 5-year-old children with cerebral palsy
TL;DR: Results suggest that reducing both the length and phonetic complexity of utterances may enhance intelligibility for children with dysarthria, however, there may be important individual differences in the impact of one or both types of sentence characteristics.
References
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Journal ArticleDOI
Differential Diagnostic Patterns of Dysarthria
TL;DR: Thirty-second speech samples were studied of at least 30 patients in each of 7 discrete neurologic groups, each patient unequivocally diagnosed as being a representative of his diagnostic group, leading to results leading to these conclusions.
Journal ArticleDOI
Clusters of deviant speech dimensions in the dysarthrias.
TL;DR: Correlation matrices were used to demonstrate co-occurrence of deviant speech dimensions observed and led to the emergence of eight distinctive clusters of dysfunction, which may serve as hypotheses for more accurate physiologic and neurophysiologic measurements.
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