TITLE

Direct Magnitude Estimation of Articulation Rate in Boys With Fragile X Syndrome

AUTHOR(S)
Zajac, David J.; Harris, Adrianne A.; Roberts, Joanne E.; Martin, Gary E.
PUB. DATE
October 2009
SOURCE
Journal of Speech, Language & Hearing Research;Oct2009, Vol. 52 Issue 5, p1370
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Purpose: To compare the perceived articulation rate of boys with fragile X syndrome (FXS) with that of chronologically age-matched (CA) boys and to determine segmental and/or prosodic factors that account for perceived rate. Method: Ten listeners used direct magnitude estimation procedures to judge the articulation rates of 7 boys with FXS only, 5 boys with FXS and a diagnosis of autism spectrum disorder (ASD), and 12 CA boys during sentence repetition. Sentences had similar articulation rates in syllables per second as determined acoustically. Four segmental/prosodic factors were used to predict perceived rate: (a) percentage consonants correct, (b) overall fundamental frequency (F0) level, (c) sentence-final F0 drop, and (d) acoustically determined articulation rate with the final word of the sentence excluded. Results: Boys with FXS and ASD were judged to talk faster than CA controls. Multiple linear regression indicated that articulation rate with the final word of the sentence excluded and sentence-final F0 drop accounted for 91% of the variance for perceived rate. Conclusions: Descriptions of speakers with FXS as having fast and/or fluctuating articulation rates may be influenced by autism status. Also, atypical sentence-final prosody may be related to perceived rate in boys with FXS and ASD.
ACCESSION #
45108154

 

Related Articles

  • Phonological Processing, Language Comprehension, and Reading Ability . Mann, Virginia A.; Cowin, Elizabeth; Schoenheimer, Joyce // Journal of Learning Disabilities;Feb1989, Vol. 22 Issue 2 

    Shows how the deficient phonological processing skills of poor beginning readers can impair their comprehension of spoken phrases and sentences that are disambiguated by prosodic cues. Differences between good and poor readers; Implication of sentence comprehension test; Correlation between...

  • Spectral distribution of prosodic information. Grant, Ken W.; Walden, Brian E. // Journal of Speech & Hearing Research;Apr96, Vol. 39 Issue 2, p228 

    Determines the relative importance of different frequency regions for the recognition of prosodic cues in speech. Relationship between prosodic speech cues and variations in intensity, duration and fundamental frequency; Evaluation of four prosodic features in various filter conditions;...

  • The Relationship of Vocal Loudness Manipulation to Prosodic F0 and Durational Variables in Healthy Adults. Watson, Peter J.; Hughes, Deanna // Journal of Speech, Language & Hearing Research;Jun2006, Vol. 49 Issue 3, p636 

    This investigation was motivated by observations that when persons with dysarthria increase loudness their speech improves. Some studies have indicated that this improvement may be related to an increase of prosodic variation. Studies have reported an increase of fundamental frequency (F0)...

  • Articulation Rate and Vowel Space Characteristics of Young Males With Fragile X Syndrome: Preliminary Acoustic Findings. Zajac, David J.; Roberts, Joanne E.; Hennon, Elizabeth A.; Harris, Adrianne A.; Barnes, Elizabeth F.; Misenheimer, Jan // Journal of Speech, Language & Hearing Research;Oct2006, Vol. 49 Issue 5, p1147 

    Purpose: Increased speaking rate is a commonly reported perceptual characteristic among males with fragile X syndrome (FAXES). The objective of this preliminary study was to determine articulation rate--one component of perceived speaking rate--and vowel space characteristics of young males with...

  • Searching for the Causes of Autism. Kaufmann, Walter E. // Exceptional Parent;Feb2010, Vol. 40 Issue 2, p30 

    The article discusses the causes of autism spectrum disorders (ASDs) in the U.S. ASDs are caused by atypical brain development with several key diagnostic features including impairments in social interaction and communication, mostly with delays in language development. Causes of ASDs are mostly...

  • April is Autism Awareness Month.  // Curriculum Review;Mar2014, Vol. 53 Issue 7, p11 

    The article discusses U.S. Autism Awareness Month, taking place in April 2014. Topics discussed include information for parents and educators about autism spectrum disorder (ASD), various signs that a child may have ASD, and co-occurring conditions associated with ASD, including Fragile X...

  • Divergent dysregulation of gene expression in murine models of fragile X syndrome and tuberous sclerosis. Sek Won Kong; Sahin, Mustafa; Collins, Christin D.; Wertz, Mary H.; Campbell, Malcolm G.; Leech, Jarrett D.; Krueger, Dilja; Bear, Mark F.; Kunkel, Louis M.; Kohane, Isaac S. // Molecular Autism;2014, Vol. 5 Issue 1, p1 

    Background Fragile X syndrome and tuberous sclerosis are genetic syndromes that both have a high rate of comorbidity with autism spectrum disorder (ASD). Several lines of evidence suggest that these two monogenic disorders may converge at a molecular level through the dysfunction of...

  • Phosphorylated fragile X mental retardation protein at serine 499, is reduced in cerebellar vermis and superior frontal cortex of subjects with autism: implications for fragile X mental retardation protein-metabotropic glutamate receptor 5 signaling. Rustan, Oyvind G.; Folsom, Timothy D.; Yousefi, Mahtab K.; Hossein Fatemi, S. // Molecular Autism;2013, Vol. 4 Issue 1, p1 

    Lohith et al. (Mol Autism 4:15, 2013) recently identified increased metabotropic glutamate receptor 5 (mGluR5) expression in the frontal cortex (FC) of subjects with fragile X syndrome. These results are consistent with postmortem findings in cerebellar vermis and FC of subjects with autism...

  • Clinical potential, safety, and tolerability of arbaclofen in the treatment of autism spectrum disorder. Frye, Richard E. // Drug, Healthcare & Patient Safety;2014, Vol. 6, p69 

    Autism spectrum disorder (ASD) is a behaviorally defined disorder which has increased in prevalence over the last two decades. Despite decades of research, no effective treatment is currently available. Animal models, as well as other lines of evidence, point to abnormalities in the balance of...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics