Differential Fine Force Control of the Upper and Lower Lips From a review of the literature, it was hypothesized that the upper lip and lower lip are differentially controlled by separate, but interacting, neuronal connectivities. A normal data base was developed for select measures of fine force control occurring within physiologic levels presumably involved in speech production. Fine force control ... Research Article
Research Article  |   June 01, 1986
Differential Fine Force Control of the Upper and Lower Lips
 
Author Affiliations & Notes
  • Steven M. Barlow
    Boys Town National Institute, Omaha, NE
  • Ronald Netsell
    Boys Town National Institute, Omaha, NE
Article Information
Research Articles
Research Article   |   June 01, 1986
Differential Fine Force Control of the Upper and Lower Lips
Journal of Speech, Language, and Hearing Research, June 1986, Vol. 29, 163-169. doi:10.1044/jshr.2902.163
History: Received November 7, 1984 , Accepted November 7, 1985
 
Journal of Speech, Language, and Hearing Research, June 1986, Vol. 29, 163-169. doi:10.1044/jshr.2902.163
History: Received November 7, 1984; Accepted November 7, 1985

From a review of the literature, it was hypothesized that the upper lip and lower lip are differentially controlled by separate, but interacting, neuronal connectivities. A normal data base was developed for select measures of fine force control occurring within physiologic levels presumably involved in speech production. Fine force control in the lower lip was found to be significantly more stable, and recruited at higher rates than the upper lip. Explanations are presented for the lower lip superiority on these measures and observations are made concerning the use of these rudimentary physiologic measures in studies of the dysarthrias.

Order a Subscription
Pay Per View
Entire Journal of Speech, Language, and Hearing Research content & archive
24-hour access
This Article
24-hour access