TITLE

Discriminating Dysarthria Type From Envelope Modulation Spectra

AUTHOR(S)
Liss, Julie M.; LeGendre, Sue; Lotto, Andrew J.
PUB. DATE
October 2010
SOURCE
Journal of Speech, Language & Hearing Research;Oct2010, Vol. 53 Issue 5, p1246
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Purpose: Previous research demonstrated the ability of temporally based rhythm metrics to distinguish among dysarthrias with different prosodic deficit profiles (J. M. Liss et al., 2009). The authors examined whether comparable results could be obtained by an automated analysis of speech envelope modulation spectra (EMS), which quantifies the rhythmicity of speech within specified frequency bands. Method: EMS was conducted on sentences produced by 43 speakers with 1 of 4 types of dysarthria and healthy controls. The EMS consisted of the spectra of the slow-rate (up to 10 Hz) amplitude modulations of the full signal and 7 octave bands ranging in center frequency from 125 to 8000 Hz. Six variables were calculated for each band relating to peak frequency and amplitude and relative energy above, below, and in the region of 4 Hz. Discriminant function analyses (DFA) determined which sets of predictor variables best discriminated between and among groups. Results: Each of 6 DFAs identified 2-6 of the 48 predictor variables. These variables achieved 84%-100% classification accuracy for group membership. Conclusions: Dysarthrias can be characterized by quantifiable temporal patterns in acoustic output. Because EMS analysis is automated and requires no editing or linguistic assumptions, it shows promise as a clinical and research tool.
ACCESSION #
58736620

 

Related Articles

  • Automated Speech Rate Measurement in Dysarthria. Martens, Heidi; Dekens, Tomas; Van Nuffelen, Gwen; Latacz, Lukas; Verhelst, Werner; De Bodt, Marc // Journal of Speech, Language & Hearing Research;Jun2015, Vol. 58 Issue 3, p698 

    Purpose: In this study, a new algorithm for automated determination of speech rate (SR) in dysarthric speech is evaluated. We investigated how reliably the algorithm calculates the SR of dysarthric speech samples when compared with calculation performed by speech-language pathologists. Method:...

  • Vowel Acoustics in Dysarthria: Speech Disorder Diagnosis and Classification. Lansford, Kaitlin L.; Liss, Julie M. // Journal of Speech, Language & Hearing Research;Feb2014, Vol. 57 Issue 1, p57 

    Purpose: The purpose of this study was to determine the extent to which vowel metrics are capable of distinguishing healthy from dysarthric speech and among different forms of dysarthria. Method: A variety of vowel metrics were derived from spectral and temporal measurements of vowel tokens...

  • Classifications of Vocalic Segments From Articulatory Kinematics: Healthy Controls and Speakers With Dysarthria. Yunusova, Yana; Weismer, Gary G.; Lindstrom, Mary J. // Journal of Speech, Language & Hearing Research;Oct2011, Vol. 54 Issue 5, p1302 

    Purpose: In this study, the authors classified vocalic segments produced by control speakers (C) and speakers with dysarthria due to amyotrophic lateral sclerosis (ALS) or Parkinson's disease (PD); classification was based on movement measures. The researchers asked the following questions: (a)...

  • Linguistic Complexity, Speech Production, and Comprehension in Parkinson's Disease: Behavioral and Physiological Indices. Walsha, Bridget; Smitha, Anne // Journal of Speech, Language & Hearing Research;Jun2011, Vol. 54 Issue 3, p787 

    Purpose: To investigate the effects of increased syntactic complexity and utterance length demands on speech production and comprehension in individuals with Parkinson's disease (PD) using behavioral and physiological measures. Method: Speech response latency, interarticulatory coordinative...

  • The Relationship Between Perception of Vocal Effort and Relative Fundamental Frequency During Voicing Offset and Onset. Stepp, Cara E.; Sawin, Devon E.; Smith, Anne; Awan, Shaheen; Eadie, Tanya L. // Journal of Speech, Language & Hearing Research;Dec2012, Vol. 55 Issue 6, p1887 

    Purpose: In this study, the authors aimed to determine the relationship between relative fundamental frequency (RFF) and listener perception of vocal effort in individuals with varying degrees of vocal hyperfunction. Method: Thirty women diagnosed with voice disorders commonly associated with...

  • Treatment of Category Generation and Retrieval in Aphasia: Effect of Typicality of Category Items. Kiran, Swathi; Sandberg, Chaleece; Sebastian, Rajani; Schlauch, Robert // Journal of Speech, Language & Hearing Research;Aug2011, Vol. 54 Issue 4, p1101 

    Purpose: Kiran and colleagues (Kiran, 2007, 2008; Kiran & Johnson, 2008; Kiran & Thompson, 2003) previously suggested that training atypical examples within a semantic category is a more efficient treatment approach to facilitating generalization within the category than training typical...

  • Effects of Sampling Context on Spontaneous Expressive Language in Males With Fragile X Syndrome or Down Syndrome. Kover, Sara T.; Mcduffie, Andrea; Abbeduto, Leonard; Brown, W. Ted; Oetting, Janna; Crais, Elizabeth // Journal of Speech, Language & Hearing Research;8/1/2012, Vol. 55 Issue 4, p1022 

    Purpose: In this study, the authors examined the impact of sampling context on multiple aspects of expressive language in male participants with fragile X syndrome in comparison to male participants with Down syndrome or typical development. Method: Participants with fragile X syndrome (n = 27),...

  • Consonant Production Accuracy in Young Cochlear Implant Recipients: Developmental Sound Classes and Word Position Effects. Ertmer, David J.; True Kloiber, Diana; Jongmin Jung; Connell Kirleis, Katie; Bradford, Denise // American Journal of Speech-Language Pathology;Nov2012, Vol. 21 Issue 4, p342 

    Purpose: To compare young cochlear implant (CI) recipients' consonant production accuracy with that of age- and gendermatched peers who were typically developing (TD). In addition to examining initial consonants, the authors compiled new data regarding the accuracy of final consonants and the...

  • "The Caterpillar": A Novel Reading Passage for Assessment of Motor Speech Disorders. Patel, Rupal; Connaghan, Kathryn; Franco, Diana; Edsall, Erika; Forgit, Dory; Olsen, Laura; Ramage, Lianna; Tyler, Emily; Russellb, Scott // American Journal of Speech-Language Pathology;Feb2013, Vol. 22 Issue 1, p1 

    Purpose: A review of the salient characteristics of motor speech disorders and common assessment protocols revealed the need for a novel reading passage tailored specifically to differentiate between and among the dysarthrias (DYSs) and apraxia of speech (AOS). Method: "The Caterpillar" passage...

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