Neural control of the lips differs for young and older adults following a perturbation

Ana Carolina De Miranda Marzullo, Osmar Pinto Neto, Kirrie J. Ballard, Donald A. Robin, Lauren Chaitow, Evangelos A. Christou

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Aging impairs the control of many skilled movements including speech. The purpose of this paper was to investigate whether young and older adults adapt to lower lip perturbations during speech differently. Twenty men (10 young, 26 ± 3 years of age; 10 older, 60 ± 9 years of age) were requested to repeat the word ("papa") 300 times. In 15% of the trials, the subjects experienced a mechanical perturbation on the lower lip. Displacement and neural activation (EMG) of the upper and lower lips were evaluated. Perturbations to the lower lip caused a greater increase in the maximum displacement of the lower lip for older adults compared with young adults (34.7 ± 19% vs. 13.4 ± 17%; P = 0.017). Furthermore, young adults exhibited significantly greater 30-100 Hz normalized EMG power for the lower lip compared to the upper lip (P < 0.005). In young adults, changes from normal to perturbed trials in the 30-50 Hz frequency band of the EMG were negatively correlated to the changes from normal to perturbed trials in the lower lip maximum displacement (R 2 = 0.48; P = 0.025). It is concluded that young adults adapt better to lower lip perturbations compared with older adults and that the associated neural activation strategy of the involved muscle is different for the two age groups.

Original languageEnglish (US)
Pages (from-to)319-327
Number of pages9
JournalExperimental Brain Research
Volume206
Issue number3
DOIs
StatePublished - Oct 2010

Fingerprint

Lip
Young Adult
Age Groups
Muscles

Keywords

  • Cortical drive
  • EMG
  • Speech
  • Wavelet analysis

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

De Miranda Marzullo, A. C., Neto, O. P., Ballard, K. J., Robin, D. A., Chaitow, L., & Christou, E. A. (2010). Neural control of the lips differs for young and older adults following a perturbation. Experimental Brain Research, 206(3), 319-327. https://doi.org/10.1007/s00221-010-2411-3

Neural control of the lips differs for young and older adults following a perturbation. / De Miranda Marzullo, Ana Carolina; Neto, Osmar Pinto; Ballard, Kirrie J.; Robin, Donald A.; Chaitow, Lauren; Christou, Evangelos A.

In: Experimental Brain Research, Vol. 206, No. 3, 10.2010, p. 319-327.

Research output: Contribution to journalArticle

De Miranda Marzullo, AC, Neto, OP, Ballard, KJ, Robin, DA, Chaitow, L & Christou, EA 2010, 'Neural control of the lips differs for young and older adults following a perturbation', Experimental Brain Research, vol. 206, no. 3, pp. 319-327. https://doi.org/10.1007/s00221-010-2411-3
De Miranda Marzullo AC, Neto OP, Ballard KJ, Robin DA, Chaitow L, Christou EA. Neural control of the lips differs for young and older adults following a perturbation. Experimental Brain Research. 2010 Oct;206(3):319-327. https://doi.org/10.1007/s00221-010-2411-3
De Miranda Marzullo, Ana Carolina ; Neto, Osmar Pinto ; Ballard, Kirrie J. ; Robin, Donald A. ; Chaitow, Lauren ; Christou, Evangelos A. / Neural control of the lips differs for young and older adults following a perturbation. In: Experimental Brain Research. 2010 ; Vol. 206, No. 3. pp. 319-327.
@article{1fa1a76b98ec46a2a97341d7afe9b337,
title = "Neural control of the lips differs for young and older adults following a perturbation",
abstract = "Aging impairs the control of many skilled movements including speech. The purpose of this paper was to investigate whether young and older adults adapt to lower lip perturbations during speech differently. Twenty men (10 young, 26 ± 3 years of age; 10 older, 60 ± 9 years of age) were requested to repeat the word ({"}papa{"}) 300 times. In 15{\%} of the trials, the subjects experienced a mechanical perturbation on the lower lip. Displacement and neural activation (EMG) of the upper and lower lips were evaluated. Perturbations to the lower lip caused a greater increase in the maximum displacement of the lower lip for older adults compared with young adults (34.7 ± 19{\%} vs. 13.4 ± 17{\%}; P = 0.017). Furthermore, young adults exhibited significantly greater 30-100 Hz normalized EMG power for the lower lip compared to the upper lip (P < 0.005). In young adults, changes from normal to perturbed trials in the 30-50 Hz frequency band of the EMG were negatively correlated to the changes from normal to perturbed trials in the lower lip maximum displacement (R 2 = 0.48; P = 0.025). It is concluded that young adults adapt better to lower lip perturbations compared with older adults and that the associated neural activation strategy of the involved muscle is different for the two age groups.",
keywords = "Cortical drive, EMG, Speech, Wavelet analysis",
author = "{De Miranda Marzullo}, {Ana Carolina} and Neto, {Osmar Pinto} and Ballard, {Kirrie J.} and Robin, {Donald A.} and Lauren Chaitow and Christou, {Evangelos A.}",
year = "2010",
month = "10",
doi = "10.1007/s00221-010-2411-3",
language = "English (US)",
volume = "206",
pages = "319--327",
journal = "Experimental Brain Research",
issn = "0014-4819",
publisher = "Springer Verlag",
number = "3",

}

TY - JOUR

T1 - Neural control of the lips differs for young and older adults following a perturbation

AU - De Miranda Marzullo, Ana Carolina

AU - Neto, Osmar Pinto

AU - Ballard, Kirrie J.

AU - Robin, Donald A.

AU - Chaitow, Lauren

AU - Christou, Evangelos A.

PY - 2010/10

Y1 - 2010/10

N2 - Aging impairs the control of many skilled movements including speech. The purpose of this paper was to investigate whether young and older adults adapt to lower lip perturbations during speech differently. Twenty men (10 young, 26 ± 3 years of age; 10 older, 60 ± 9 years of age) were requested to repeat the word ("papa") 300 times. In 15% of the trials, the subjects experienced a mechanical perturbation on the lower lip. Displacement and neural activation (EMG) of the upper and lower lips were evaluated. Perturbations to the lower lip caused a greater increase in the maximum displacement of the lower lip for older adults compared with young adults (34.7 ± 19% vs. 13.4 ± 17%; P = 0.017). Furthermore, young adults exhibited significantly greater 30-100 Hz normalized EMG power for the lower lip compared to the upper lip (P < 0.005). In young adults, changes from normal to perturbed trials in the 30-50 Hz frequency band of the EMG were negatively correlated to the changes from normal to perturbed trials in the lower lip maximum displacement (R 2 = 0.48; P = 0.025). It is concluded that young adults adapt better to lower lip perturbations compared with older adults and that the associated neural activation strategy of the involved muscle is different for the two age groups.

AB - Aging impairs the control of many skilled movements including speech. The purpose of this paper was to investigate whether young and older adults adapt to lower lip perturbations during speech differently. Twenty men (10 young, 26 ± 3 years of age; 10 older, 60 ± 9 years of age) were requested to repeat the word ("papa") 300 times. In 15% of the trials, the subjects experienced a mechanical perturbation on the lower lip. Displacement and neural activation (EMG) of the upper and lower lips were evaluated. Perturbations to the lower lip caused a greater increase in the maximum displacement of the lower lip for older adults compared with young adults (34.7 ± 19% vs. 13.4 ± 17%; P = 0.017). Furthermore, young adults exhibited significantly greater 30-100 Hz normalized EMG power for the lower lip compared to the upper lip (P < 0.005). In young adults, changes from normal to perturbed trials in the 30-50 Hz frequency band of the EMG were negatively correlated to the changes from normal to perturbed trials in the lower lip maximum displacement (R 2 = 0.48; P = 0.025). It is concluded that young adults adapt better to lower lip perturbations compared with older adults and that the associated neural activation strategy of the involved muscle is different for the two age groups.

KW - Cortical drive

KW - EMG

KW - Speech

KW - Wavelet analysis

UR - http://www.scopus.com/inward/record.url?scp=77957660284&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77957660284&partnerID=8YFLogxK

U2 - 10.1007/s00221-010-2411-3

DO - 10.1007/s00221-010-2411-3

M3 - Article

C2 - 20852991

AN - SCOPUS:77957660284

VL - 206

SP - 319

EP - 327

JO - Experimental Brain Research

JF - Experimental Brain Research

SN - 0014-4819

IS - 3

ER -