ArticleExperimental brain research2010
Neural control of the lips differs for young and older adults following a perturbation.
Article in Experimental brain research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Bimanual coordination and neuromuscular synchronization in Parkinson's disease and healthy adults.Experimental brain research · 2025Article
- The efficacy of memory load on speech-based detection of Alzheimer's disease.Frontiers in aging neuroscience · 2023Article
- The effect of inherent and incidental constraints on bimanual and social coordination.Experimental brain research · 2021Article
- An Investigation of Compensation and Adaptation to Auditory Perturbations in Individuals With Acquired Apraxia of Speech.Frontiers in human neuroscience · 2018Article
- EMG synchrony to assess impaired corticomotor control of locomotion after stroke.Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology · 2017Article
- Behavioral, computational, and neuroimaging studies of acquired apraxia of speech.Frontiers in human neuroscience · 2014Article
- Hand dominance during constant force isometric contractions: evidence of different cortical drive commands.European journal of applied physiology · 2012Article
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Authors and funding
6 authors.
Funding
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.
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