Covert contrast in velar fronting: An acoustic and ultrasound study

Clinical Linguistics & Phonetics
Tara Mcallister ByunAi Mizoguchi

Abstract

There is growing evidence that speech sound acquisition is a gradual process, with instrumental measures frequently revealing covert contrast in errors perceived to involve phonemic substitution. Ultrasound imaging has the potential to expand our understanding of covert contrast by showing whether a child uses different tongue shapes while producing sounds that are perceived as neutralised. This study used an ultrasound measure (Dorsum Excursion Index) and acoustic measures (VOT and spectral moments of the burst) to investigate overt and covert contrast between velar and alveolar stops in child speech. Participants were two children who produced a perceptually overt velar-alveolar contrast and two children who neutralised the contrast via velar fronting. Both acoustic and ultrasound measures revealed significant differences between perceptually distinct velar and alveolar targets. One child with velar fronting demonstrated covert contrast in one acoustic and one ultrasound measure; the other showed no evidence of contrast. Clinical implications are discussed in this article.

References

Dec 1, 1975·Journal of Speech and Hearing Research·D H Klatt
Aug 1, 1992·Journal of Speech and Hearing Research·H M SussmanH A McCaffrey
May 1, 1990·The Journal of Speech and Hearing Disorders·A A TylerJ H Saxman
Dec 1, 1985·The British Journal of Disorders of Communication·H AmorosaA Keck
Jan 1, 1967·Language and Speech·L Lisker, A S Abramson
May 6, 1999·Journal of Speech, Language, and Hearing Research : JSLHR·F E Gibbon
Oct 4, 2005·Journal of Speech, Language, and Hearing Research : JSLHR·D H WhalenDonald S Hailey
Oct 7, 2005·Clinical Linguistics & Phonetics·Min LiMaureen Stone
Nov 29, 2011·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·Natalia Zharkova
Jan 4, 2012·Folia Phoniatrica Et Logopaedica : Official Organ of the International Association of Logopedics and Phoniatrics (IALP)·Lucie MénardGabrielle Richard
Jan 10, 2012·Journal of Child Language·Tara McAllister Byun
Jan 1, 2013·Journal of Speech, Language, and Hearing Research : JSLHR·Elaine R Hitchcock, Laura L Koenig
Jul 3, 2013·American Journal of Speech-language Pathology·Harriet B KleinMaria I Grigos
Jul 3, 2013·American Journal of Speech-language Pathology·Jonathan L PrestonNicole Landi
Aug 5, 2014·Journal of Speech, Language, and Hearing Research : JSLHR·Jonathan L PrestonEdwin Maas
Aug 5, 2014·Journal of Speech, Language, and Hearing Research : JSLHR·Tara McAllister ByunMichelle T Swartz

❮ Previous
Next ❯

Citations

Jun 21, 2016·Clinical Linguistics & Phonetics·Natalia ZharkovaAlice Lee
Sep 10, 2016·Clinical Linguistics & Phonetics·Joanne ClelandAlan A Wrench
Feb 15, 2019·Topics in Cognitive Science·Dina LipkindClara C Levelt
Jul 18, 2020·Clinical Linguistics & Phonetics·Tahira Gibson, Sue Ann S Lee
Aug 1, 2019·Clinical Linguistics & Phonetics·Chin-Ting LiuYung-Chieh Lin
Jul 8, 2020·American Journal of Speech-language Pathology·Ray D Kent, Carrie Rountrey
Sep 26, 2017·Computer Speech & Language·Mary E BeckmanPatrick F Reidy
Mar 16, 2021·Journal of Speech, Language, and Hearing Research : JSLHR·Joanne Cleland, James M Scobbie
Jul 8, 2021·Journal of Speech, Language, and Hearing Research : JSLHR·Heather KabakoffTara McAllister
Jul 29, 2021·CoDAS·Fernanda Leitão de Castro Nunes de LimaEliana Maria Gradim Fabbron
Oct 5, 2021·Clinical Linguistics & Phonetics·Eleanor Sugden, Joanne Cleland
May 28, 2019·Folia Phoniatrica Et Logopaedica : Official Organ of the International Association of Logopedics and Phoniatrics (IALP)·Joanne ClelandNatalia Zharkova

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.