Dysarthria of Adult Cerebral Palsy

1980 ◽  
Vol 23 (1) ◽  
pp. 41-55 ◽  
Author(s):  
L. J. Platt ◽  
Gavin Andrews ◽  
Pauline M. Howie
Keyword(s):  
Cerebral Palsy ◽  
Speech Intelligibility ◽  
Confusion Matrix ◽  
Initial Position ◽  
Final Position ◽  
Single Word ◽  
Speech Task ◽  
Position Errors ◽  
Confusion Matrices

The articulation errors of 32 spastic and 18 athetoid males, aged 17–55 years, were analyzed using a confusion matrix paradigm. The subjects had a diagnosis of congenital cerebral palsy, and adequate intelligence, hearing, and ability to perform the speech task. Phonetic transcriptions were made of single-word utterances which contained 49 selected phonemes: 22 word-initial consonants, 18 word-final consonants and nine vowels. Errors of substitution, omission and distortion were categorized on confusion matrices such that patterns could be observed. It was found that within-manner errors (place or voicing errors or both) exceeded between-manner errors by a substantial amount, more so on final consonants. The predominant within-manner errors occurred on fricative phonemes for both initial and final positions. Affricate within-manner errors, all of devoicing, were also frequent in final position. The predominant between-manner initial position errors involved liquid-to-glide and affricate-to-stop changes, and for final position, affricate-to-fricative. Phoneme omission occurred three times more frequently on final than on initial consonants. The error data of individual subjects were found to correspond with the identified overall group patterns. Those with markedly reduced speech intelligibility demonstrated the same patterns of error as the overall group. The implications for treatment are discussed.

Phonological acquisition of Korean consonants in conversational speech produced by young Korean children

2016 ◽  
Vol 44 (4) ◽  
pp. 1010-1023 ◽  
Author(s):  
MINJUNG KIM ◽  
SOO-JIN KIM ◽  
CAROL STOEL-GAMMON
Keyword(s):  
Initial Position ◽  
Final Position ◽  
Conversational Speech ◽  
Typically Developing ◽  
Single Word ◽  
Phonological Acquisition ◽  
Korean Children ◽  
Morphological System

AbstractThis study investigates the phonological acquisition of Korean consonants using conversational speech samples collected from sixty monolingual typically developing Korean children aged two, three, and four years. Phonemic acquisition was examined for syllable-initial and syllable-final consonants. Results showed that Korean children acquired stops and nasals followed by affricates, fricatives, and the liquid. In general, Korean consonants were acquired earlier in syllable-initial position compared to syllable-final position, except for the liquid /l/. The findings are compared with previous research based on single-word assessments, and differences that appear to be associated with the unique morphological system of Korean are noted.

Dysarthria of Adult Cerebral Palsy

1980 ◽  
Vol 23 (1) ◽  
pp. 28-40 ◽  
Author(s):  
L. J. Platt ◽  
Gavin Andrews ◽  
Margrette Young ◽  
Peter T. Quinn
Keyword(s):  
Cerebral Palsy ◽  
Physical Disability ◽  
Speech Intelligibility ◽  
Definite Diagnosis ◽  
Single Word ◽  
Physically Disabled ◽  
Percent Correct ◽  
The Mean

The speech intelligibility and articulatory impairment of 32 spastic and 18 athetoid males, aged 17–55, were examined. Selection was based on a definite diagnosis of cerebral palsy, and adequate intelligence, hearing, and ability to perform the required tasks. Two estimates of speech intelligibility were obtained from naive listeners: single words correctly recognized and prose intelligibility rating. Diadochokinetic (DDK) syllable rates and percent correct articulation of selected phonemes were employed as indices of articulatory impairment. The 50 subjects were, on average, judged to be 50% intelligible on both intelligibility estimates. Group mean DDK rate was 2.9 syllables per second and 78% of phonemes were transcribed as correctly articulated. The mean scores of the spastic subjects were superior to the athetoids on all speech measures, significantly so for single-word intelligibility and DDK rate even when group inequalities for physical disability and I.Q. were adjusted. In this sample, spastics were less physically disabled and had lower I.Q.'s than athetoids. Specific phonemic features characteristic of the dysarthria in cerebral-palsied subjects were: (1) anterior lingual place inaccuracy; (2) reduced precision of fricative and affricate manners; and (3) inability to achieve the extreme positions in the vowel articulatory space. A comparison of these results with those reported for children with cerebraI palsy suggests that the consonantal place and manner problems are fairly stable features of cerebral palsy dysarthria.

Translating Principles of Speech Science to Clinical Practice: Current and Future Trends in Craniofacial Disorders

2008 ◽  
Vol 18 (1) ◽  
pp. 31-40 ◽  
Author(s):  
David J. Zajac
Keyword(s):  
Clinical Practice ◽  
Speech Intelligibility ◽  
Current Practice ◽  
Computer Assisted ◽  
Behavioral Management ◽  
Single Word ◽  
Future Directions ◽  
Speech Science ◽  
The Impact ◽  
Opinion Article

Abstract The purpose of this opinion article is to review the impact of the principles and technology of speech science on clinical practice in the area of craniofacial disorders. Current practice relative to (a) speech aerodynamic assessment, (b) computer-assisted single-word speech intelligibility testing, and (c) behavioral management of hypernasal resonance are reviewed. Future directions and/or refinement of each area are also identified. It is suggested that both challenging and rewarding times are in store for clinical researchers in craniofacial disorders.

scholarly journals Single-Word Speech Intelligibility in Children and Adults With Down Syndrome

2018 ◽  
Vol 27 (1) ◽  
pp. 222-236 ◽  
Author(s):  
Alyssa Wild ◽  
Houri K. Vorperian ◽  
Ray D. Kent ◽  
Daniel M. Bolt ◽  
Diane Austin
Keyword(s):  
Down Syndrome ◽  
Speech Intelligibility ◽  
Word Identification ◽  
Typically Developing ◽  
Single Word ◽  
Vowel Production ◽  
Adult Men ◽  
Age Related ◽  
Assessment And Treatment ◽  
High Vowels

Purpose A single-word identification test was used to study speech production in children and adults with Down syndrome (DS) to determine the developmental pattern of speech intelligibility with an emphasis on vowels. Method Speech recordings were collected from 62 participants with DS aged 4–40 years and 25 typically developing participants aged 4–7 years. Panels of 5 adult lay listeners transcribed the speech recordings orthographically, and their responses were scored in comparison with the speakers' target words. Results Speech intelligibility in persons with DS improved with age, especially between the ages of 4 and 16 years. Whereas consonants contribute to intelligibility, vowels also played an important role in reduced intelligibility with an apparent developmental difference in low versus high vowels, where the vowels /æ/ and/ɑ/ developed at a later age than /i/ and /u/. Interspeaker variability was large, with male individuals being generally less intelligible than female individuals and some adult men having very low intelligibility. Conclusion Results show age-related patterns in speech intelligibility in persons with DS and identify the contribution of dimensions of vowel production to intelligibility. The methods used clarify the phonetic basis of reduced intelligibility, with implications for assessment and treatment.

scholarly journals Initial laryngeal neutralisation in Tyrolean

Phonology ◽  
2018 ◽  
Vol 35 (1) ◽  
pp. 79-114 ◽  
Author(s):  
Alessandro Vietti ◽  
Birgit Alber ◽  
Barbara Vogt
Keyword(s):  
Acoustic Analysis ◽  
Initial Position ◽  
Final Position ◽  
Acoustic Cues ◽  
Acoustic Parameters ◽  
Place Of Articulation ◽  
Closure Duration

In the Southern Bavarian variety of Tyrolean, laryngeal contrasts undergo a typologically interesting process of neutralisation in word-initial position. We undertake an acoustic analysis of Tyrolean stops in word-initial, word-medial intersonorant and word-final contexts, as well as in obstruent clusters, investigating the role of the acoustic parameters VOT, prevoicing, closure duration and F0 and H1–H2* on following vowels in implementing contrast, if any. Results show that stops contrast word-medially via [voice] (supported by the acoustic cues of closure duration and F0), and are neutralised completely in word-final position and in obstruent clusters. Word-initially, neutralisation is subject to inter- and intraspeaker variability, and is sensitive to place of articulation. Aspiration plays no role in implementing laryngeal contrasts in Tyrolean.

An Analysis of Students Problem To Pronounce Aspirated /P/, /T/, /K/ at Initial Position of English Words

2020 ◽  
Vol 4 (3) ◽  
pp. 92-98
Author(s):  
Widya Juli Astria
Keyword(s):  
Research Design ◽  
Initial Position ◽  
English Department ◽  
Final Position ◽  
The Third ◽  
The Subject ◽  
Learning English

The purpose of this research was to analyze the third semester students’ problem in learning English basic sounds pronunciation. The research design was case study. The data were collected by recording the students’ pronunciation. The subject of the research were the third Semester Students of English Department at Universitas Ekasakti). The result of the research was found that Each aspirated /p/, /t/, /k/ have two allophones, [ph] and [p], [th] and [t], [kh] and [k]. Then, all instances of [ph] occured immediately before a stressed vowel. It can be said that the following rule: /p/ becomes [ph] when it occured before a stressed vowel or initial position of English words. Moreover, aspirated /p/, /t/, /k/ sounds were really pronounced in two different ways. First, when these sounds came at the beginning of the word they are always followed by a puff of breath. Second, if aspirated /p/, /t/, and /k/ occur at the end of final position of English words, it is not necessary to pronounce them by following a puff of breath. In following there is a chart of aspirated /p/, /t/, /k/ sounds at initial position of English words

An Argument for Phonological Stress in French: the syntagm over contrast

2022 ◽  
pp. 1-17
Author(s):  
Shanti Ulfsbjorninn
Keyword(s):  
Initial Position ◽  
Romance Languages ◽  
Final Position ◽  
Phonological Word ◽  
Word Stress ◽  
Minimal Pairs ◽  
French Word ◽  
Lively Debate

Abstract It is standardly assumed that French does not have word-stress, rather it has phrase-level prominence. I will advance a number of arguments, many of which have appeared already in the literature, that cumulatively suggest that French roots are characterized by phonological prominence, even if this is non-contrastive. By prominence, I mean a syntagmatically distributed strength that has all the phonological characteristics of stress in other Romance languages. I will remain agnostic about the nature of that stress, eschewing the lively debate about whether French has feet, and if so what type, and at what level. The structure of the argument is as follows. French demonstrably has phonological word-final strength but one wonders what the source of this strength is. Positionally, the initial position is strong and, independently of cases where it is reinforced by other factors, the final position is weak. I will argue, based on parallels with other Romance languages, that French word-final strength derives from root-final phonological stress. The broader significance of this conclusion is that syntagmatic properties are enough to motivate underlying forms, even in the absence of paradigmatic contrasts (minimal pairs).

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