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ACCURACY OF PARENTAL REPORT ON PHONOLOGICAL INVENTORIES OF TODDLERS
Title
ACCURACY OF PARENTAL REPORT ON PHONOLOGICAL INVENTORIES OF TODDLERS.
Creator
Teske, Kristin, Carson, Cecyle, University of Central Florida
Abstract / Description
Considering the diminishing availability of professional resources, increasing costs, and time requirements involved in early childhood mass screenings, parents are an essential source of information. In this study, the Survey of Speech Development (SSD) (Perry-Carson & Steel, 2001; Steel, 2000) was used to determine the accuracy of parents in reporting the speech sound inventories of their toddlers. Parents of 30 children, who were between the ages of 27 to 33 months old, completed the SSD...
Show moreConsidering the diminishing availability of professional resources, increasing costs, and time requirements involved in early childhood mass screenings, parents are an essential source of information. In this study, the Survey of Speech Development (SSD) (Perry-Carson & Steel, 2001; Steel, 2000) was used to determine the accuracy of parents in reporting the speech sound inventories of their toddlers. Parents of 30 children, who were between the ages of 27 to 33 months old, completed the SSD prior to a speech and language assessment session. Based on assessment results, the children were classified as normal developing or language delayed. A 20-minute play interaction between the parent and child was recorded during the assessment and was transcribed later for analysis. Speech sounds (consonants) were coded as present or absent and comparisons were made between the parents results on the SSD and data from the 20-minute speech sample. A point-by-point reliability analysis of the speech sounds on the SSD compared to those produced in the speech sample revealed an overall parental accuracy of 75%. Further, no differences were found between parent reports and transcribed accounts for total number of different consonants. This was true for parents of both language delayed and language normal toddlers. Results suggest that if given a systematic means of providing information, parents are a reliable source of information regarding sounds their toddlers produce.
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Date Issued
2005
Identifier
CFE0000676, ucf:46543
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0000676
COMPARISON OF ACOUSTIC MEASURES IN DISCRIMINATING BETWEEN THOSE WITH FRIEDREICH'S ATAXIA AND NEUROLOGICALLY NORMAL PEERS.
Title
COMPARISON OF ACOUSTIC MEASURES IN DISCRIMINATING BETWEEN THOSE WITH FRIEDREICH'S ATAXIA AND NEUROLOGICALLY NORMAL PEERS.
Creator
Luna-Webb, Sophia, Carson, Cecyle, University of Central Florida
Abstract / Description
Background: Technological advancements in speech acoustic analysis have led to the development of spectral/cepstral analyses due to questions regarding the validity of traditional time-based measures (i.e., Jitter, Shimmer, and Harmonics-to-Noise-Ratio) in objectifying perturbations in dysphonic voices. Aim: This study investigated the validity of time-based measures in discriminating those with Friedreich's ataxia (FA) from normal voiced (NV) peers when compared to cepstral-spectral measures...
Show moreBackground: Technological advancements in speech acoustic analysis have led to the development of spectral/cepstral analyses due to questions regarding the validity of traditional time-based measures (i.e., Jitter, Shimmer, and Harmonics-to-Noise-Ratio) in objectifying perturbations in dysphonic voices. Aim: This study investigated the validity of time-based measures in discriminating those with Friedreich's ataxia (FA) from normal voiced (NV) peers when compared to cepstral-spectral measures. Method: A total of 120 sustained vowel phonations from an existing database of 40 participants (20 FA; 20 NV) of the vowels /Q/, /i/, and /o/ were analyzed to determine which set of variables (i.e., time-based vs. cepstral-spectral) better predicted group membership. Four variables of time-based measures (Jitter Local %, Jitter RAP, Shimmer Local %, Shimmer APQ11, and HNR) were analyzed via the freeware program PRAAT and compared to four cepstral-spectral measures (Cepstral Peak Prominence, Cepstral Peak Prominence Standard Deviation, Low/High Ratio Standard Deviation, and the Cepstral/ Spectral Index of Dysphonia) extracted from the Analysis of Dysphonia in Speech and Voice (ADSV) software program. Results: Findings from a discriminant analysis showed sensitivity and specificity results to be better for ADSV measures; 100% of those in the FA group were classified correctly (sensitivity), and 95% of members in the NV group were correctly identified (specificity) as compared to PRAAT (70% sensitivity and 85% specificity). Conclusions: Cepstral-spectral measures are much more accurate in discriminating between those with FA and NV peers as compared to time-based estimates.
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Date Issued
2015
Identifier
CFH0004824, ucf:45463
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFH0004824
Acoustic Analysis of Prolonged Vowels In Adolescents and Young Adults With Friedreich's Ataxia
Title
Acoustic Analysis of Prolonged Vowels In Adolescents and Young Adults With Friedreich's Ataxia.
Creator
Hardin, Kaylea, Ryalls, John, Carson, Cecyle, Hoffman Ruddy, Bari, University of Central Florida
Abstract / Description
This study employed spectral analyses for acoustic measures of sustained vowel productions from a group of 20 adolescents and young adults with Friedreich's Ataxia (FA) and compared findings with a group of 20 age-equivalent and gender-matched normal control participants. State-of-the art spectral analyses from the Analysis of Dysphonia in Speech and Voice (ADSV) program, developed for various voice disorders from Kay Elemetrics, were applied to initial 2 second sustained vowel segments of...
Show moreThis study employed spectral analyses for acoustic measures of sustained vowel productions from a group of 20 adolescents and young adults with Friedreich's Ataxia (FA) and compared findings with a group of 20 age-equivalent and gender-matched normal control participants. State-of-the art spectral analyses from the Analysis of Dysphonia in Speech and Voice (ADSV) program, developed for various voice disorders from Kay Elemetrics, were applied to initial 2 second sustained vowel segments of the vowels /a/, /i/, and /o/. Spectral analyses included averages and standard deviations of Cepstral Peak Prominence (CPP), Cepstral Peak Prominence Standard Deviation (CPP SD), Low/High Spectral Ratio (L/H Ratio), Low/High Spectral Ratio Standard Deviation (L/H Ratio SD), Cepstral/Spectral Index of Dysphonia (CSID), and Mean Cepstral Peak Prominence Fundamental Frequency (Mean CPP F0). Statistical analyses revealed significant differences between the spectral analyses of voice characteristics of individuals with FA and those of normal controls for all measures except for CPP SD. The aim of these analyses was to determine spectral differences evident in vowel productions of individuals with FA using new cepstral-derived measures that characterize the phonatory instability and dis-coordination present in this disorder. Such research may not only help develop early non-invasive indicators of ataxia and track disease progression, but also serve to stimulate research into alleviating the symptoms of this devastating disease.
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Date Issued
2014
Identifier
CFE0005181, ucf:50673
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0005181
Perceptual Analysis of Prolonged Vowels in Adolescent and Young Adults with Friedreich's Ataxia
Title
Perceptual Analysis of Prolonged Vowels in Adolescent and Young Adults with Friedreich's Ataxia.
Creator
Varsallone, Tara, Carson, Cecyle, Ryalls, John, Hoffman Ruddy, Bari, University of Central Florida
Abstract / Description
The purpose of this study was to conduct perceptual analyses, using the initial two-second portions, of prolonged vowels /a/, /i/, and /o/. Two groups of adolescents and young adults were analyzed- one group consisting of 20 individuals with Friedreich's ataxia who were compared to 20 individuals with normal voice (control participants). A trained group of 10 graduate students listened to 132 vowel samples (3 vowels X 40 participants, + 12 samples (10%) for reliability purposes) for a total...
Show moreThe purpose of this study was to conduct perceptual analyses, using the initial two-second portions, of prolonged vowels /a/, /i/, and /o/. Two groups of adolescents and young adults were analyzed- one group consisting of 20 individuals with Friedreich's ataxia who were compared to 20 individuals with normal voice (control participants). A trained group of 10 graduate students listened to 132 vowel samples (3 vowels X 40 participants, + 12 samples (10%) for reliability purposes) for a total of 132 perceptual judgments. The students listened to the samples which were randomized onto Dell computers (Optiplex 755) and played through headphones that were set at a comfortable level by the listeners prior to analyzing the voice samples. Listeners used a modified version of the Consensus-Auditory Perceptual Evaluation of Voice (CAPE-VM) to rate the vocal qualities of 'roughness', 'breathiness', and 'strain' in the samples on a 100 millimeter visual analog scale with 0 representing a perception of no roughness, breathiness, or strain, and 100 indicating the most extreme amount of variance from normal voice quality. Statistical analyses were conducted to determine if perceptual measures were significantly different between the two groups. Values on these analyses were expected to be larger for individuals with Friedreich's ataxia than those with normal voice. Results revealed that all three measures were significantly different between the two groups, with those in the Friedreich's ataxia group reported as having increased rough, breathy, and strained components in their voice quality as compared to normal voiced peers. Findings support perceptual measures as useful indicators for reporting changes in the phonatory system due to Friedreich's ataxia.
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Date Issued
2014
Identifier
CFE0005273, ucf:50557
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0005273