Tongue function in nondysarthric speakers with Parkinson's disease: An electromagnetic articulography investigation

Min Ney Wong, Bruce E. Murdoch, Brooke Mai Whelan

Research output: Contribution to journalArticleResearchpeer-review

5 Citations (Scopus)

Abstract

Articulatory imprecision in Parkinson's disease (PD) has been attributed to reduced range of movement, rigidity, and abnormal speed of movement of the articulatory structures. Previous studies provided acoustic and kinematic evidence of lip muscle rigidity, reduced amplitude, and velocity of lip and jaw movement, mainly based on nonspeech measures. Very limited studies have documented the effects of PD on lingual kinematics during speech production. The present study aimed to investigate lingual kinematics during sentence production in a group of 7 nondysarthric speakers with PD using the electromagnetic articulograph (AG-200 EMA). Tongue-tip and tongue-back movements were recorded by the EMA system during sentence production. Seven non-neurologically impaired participants matched for age and sex served as a control group. Results revealed no significant difference on the distance of tongue movement. However, the PD group did show significantly reduced maximum velocity, maximum acceleration, maximum deceleration, and significantly longer duration of tongue movement. Rates of sentence production were also slower for the PD group. The subclinical differences in tongue kinematics of the nondysarthric speakers with PD documented in this study support that limitations in the range of tongue movement leading to articulatory undershoot may be a major contributor to articulatory impairment in dysarthric speakers with PD.

Original languageEnglish
Pages (from-to)24-33
Number of pages10
JournalJournal of Medical Speech-Language Pathology
Volume18
Issue number3
Publication statusPublished - Sep 2010
Externally publishedYes

Fingerprint

Electromagnetic Phenomena
Tongue
Parkinson Disease
Biomechanical Phenomena
Lip
Muscle Rigidity
Deceleration
Dyskinesias
Jaw
Acoustics
Control Groups

Cite this

@article{6b971cd3cb54490f858f420ddacbd862,
title = "Tongue function in nondysarthric speakers with Parkinson's disease: An electromagnetic articulography investigation",
abstract = "Articulatory imprecision in Parkinson's disease (PD) has been attributed to reduced range of movement, rigidity, and abnormal speed of movement of the articulatory structures. Previous studies provided acoustic and kinematic evidence of lip muscle rigidity, reduced amplitude, and velocity of lip and jaw movement, mainly based on nonspeech measures. Very limited studies have documented the effects of PD on lingual kinematics during speech production. The present study aimed to investigate lingual kinematics during sentence production in a group of 7 nondysarthric speakers with PD using the electromagnetic articulograph (AG-200 EMA). Tongue-tip and tongue-back movements were recorded by the EMA system during sentence production. Seven non-neurologically impaired participants matched for age and sex served as a control group. Results revealed no significant difference on the distance of tongue movement. However, the PD group did show significantly reduced maximum velocity, maximum acceleration, maximum deceleration, and significantly longer duration of tongue movement. Rates of sentence production were also slower for the PD group. The subclinical differences in tongue kinematics of the nondysarthric speakers with PD documented in this study support that limitations in the range of tongue movement leading to articulatory undershoot may be a major contributor to articulatory impairment in dysarthric speakers with PD.",
author = "Wong, {Min Ney} and Murdoch, {Bruce E.} and Whelan, {Brooke Mai}",
year = "2010",
month = "9",
language = "English",
volume = "18",
pages = "24--33",
journal = "Journal of Medical Speech-Language Pathology",
issn = "1065-1438",
publisher = "SINGULAR PUBLISHING GROUP INC",
number = "3",

}

Tongue function in nondysarthric speakers with Parkinson's disease : An electromagnetic articulography investigation. / Wong, Min Ney; Murdoch, Bruce E.; Whelan, Brooke Mai.

In: Journal of Medical Speech-Language Pathology, Vol. 18, No. 3, 09.2010, p. 24-33.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Tongue function in nondysarthric speakers with Parkinson's disease

T2 - An electromagnetic articulography investigation

AU - Wong, Min Ney

AU - Murdoch, Bruce E.

AU - Whelan, Brooke Mai

PY - 2010/9

Y1 - 2010/9

N2 - Articulatory imprecision in Parkinson's disease (PD) has been attributed to reduced range of movement, rigidity, and abnormal speed of movement of the articulatory structures. Previous studies provided acoustic and kinematic evidence of lip muscle rigidity, reduced amplitude, and velocity of lip and jaw movement, mainly based on nonspeech measures. Very limited studies have documented the effects of PD on lingual kinematics during speech production. The present study aimed to investigate lingual kinematics during sentence production in a group of 7 nondysarthric speakers with PD using the electromagnetic articulograph (AG-200 EMA). Tongue-tip and tongue-back movements were recorded by the EMA system during sentence production. Seven non-neurologically impaired participants matched for age and sex served as a control group. Results revealed no significant difference on the distance of tongue movement. However, the PD group did show significantly reduced maximum velocity, maximum acceleration, maximum deceleration, and significantly longer duration of tongue movement. Rates of sentence production were also slower for the PD group. The subclinical differences in tongue kinematics of the nondysarthric speakers with PD documented in this study support that limitations in the range of tongue movement leading to articulatory undershoot may be a major contributor to articulatory impairment in dysarthric speakers with PD.

AB - Articulatory imprecision in Parkinson's disease (PD) has been attributed to reduced range of movement, rigidity, and abnormal speed of movement of the articulatory structures. Previous studies provided acoustic and kinematic evidence of lip muscle rigidity, reduced amplitude, and velocity of lip and jaw movement, mainly based on nonspeech measures. Very limited studies have documented the effects of PD on lingual kinematics during speech production. The present study aimed to investigate lingual kinematics during sentence production in a group of 7 nondysarthric speakers with PD using the electromagnetic articulograph (AG-200 EMA). Tongue-tip and tongue-back movements were recorded by the EMA system during sentence production. Seven non-neurologically impaired participants matched for age and sex served as a control group. Results revealed no significant difference on the distance of tongue movement. However, the PD group did show significantly reduced maximum velocity, maximum acceleration, maximum deceleration, and significantly longer duration of tongue movement. Rates of sentence production were also slower for the PD group. The subclinical differences in tongue kinematics of the nondysarthric speakers with PD documented in this study support that limitations in the range of tongue movement leading to articulatory undershoot may be a major contributor to articulatory impairment in dysarthric speakers with PD.

UR - http://www.scopus.com/inward/record.url?scp=79952413339&partnerID=8YFLogxK

M3 - Article

VL - 18

SP - 24

EP - 33

JO - Journal of Medical Speech-Language Pathology

JF - Journal of Medical Speech-Language Pathology

SN - 1065-1438

IS - 3

ER -