Hyoid and tongue surface movements in speaking and eating

Karen M. Hiiemae, Jeffrey B. Palmer, Steven W. Medicis, Jason Hegener, B. Scott Jackson, Daniel E. Lieberman

Research output: Contribution to journalArticle

Abstract

The human hyoid moves continuously in feeding, facilitating movements of the tongue surface and the processing and transport of food. The hypothesis that similar hyoid movements support tongue movements in speech was tested in 10 normal young adults of both sexes, who were recorded with lateral-projection videofluorography when feeding on hard and soft foods and when reading the 'Grandfather Passage', which includes the major vowel-consonant combinations in English. Recordings were made with and without tongue-markers. Images were analysed with a digital frame grabber and computer. Each participant served as his/her own control. The hyoid moved continuously during speech and feeding. In speech, hyoid motions were irregular and not linked to jaw movement, as they were for feeding. The centroids and variances of the domains for all reference points were compared for speech and feeding; the centroid represents the average position of a structure and variance its amount of motion. Gape and hyoid centroids were significantly different for feeding and speech (P <0.001), but differences for gape averaged 7 mm. There were no significant differences in gape attributable to sex. Consistent with the known differences in hyolaryngeal position there were significant sex differences in hyoid centroid (P = 0.031) but not variance. In speech, tongue-markers had a smaller spatial domain (P = 0.001) condensed within the larger feeding domain. The small shift in the gape centroid does not explain the larger forward shift of the hyoid during speech. These findings raise questions about the neuromotor control of hyoid position in the two behaviours and the biomechanics of the supralaryngeal vocal tract.

Original languageEnglish (US)
Pages (from-to)11-27
Number of pages17
JournalArchives of Oral Biology
Volume47
Issue number1
DOIs
StatePublished - 2002

Fingerprint

Tongue
Eating
Food Handling
Jaw
Biomechanical Phenomena
Sex Characteristics
Reading
Young Adult
Food

Keywords

  • Eating
  • Hyoid
  • Jaw
  • Speech
  • Swallowing
  • Tongue
  • Videofluorography

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Hiiemae, K. M., Palmer, J. B., Medicis, S. W., Hegener, J., Scott Jackson, B., & Lieberman, D. E. (2002). Hyoid and tongue surface movements in speaking and eating. Archives of Oral Biology, 47(1), 11-27. https://doi.org/10.1016/S0003-9969(01)00092-9

Hyoid and tongue surface movements in speaking and eating. / Hiiemae, Karen M.; Palmer, Jeffrey B.; Medicis, Steven W.; Hegener, Jason; Scott Jackson, B.; Lieberman, Daniel E.

In: Archives of Oral Biology, Vol. 47, No. 1, 2002, p. 11-27.

Research output: Contribution to journalArticle

Hiiemae, KM, Palmer, JB, Medicis, SW, Hegener, J, Scott Jackson, B & Lieberman, DE 2002, 'Hyoid and tongue surface movements in speaking and eating', Archives of Oral Biology, vol. 47, no. 1, pp. 11-27. https://doi.org/10.1016/S0003-9969(01)00092-9
Hiiemae KM, Palmer JB, Medicis SW, Hegener J, Scott Jackson B, Lieberman DE. Hyoid and tongue surface movements in speaking and eating. Archives of Oral Biology. 2002;47(1):11-27. https://doi.org/10.1016/S0003-9969(01)00092-9
Hiiemae, Karen M. ; Palmer, Jeffrey B. ; Medicis, Steven W. ; Hegener, Jason ; Scott Jackson, B. ; Lieberman, Daniel E. / Hyoid and tongue surface movements in speaking and eating. In: Archives of Oral Biology. 2002 ; Vol. 47, No. 1. pp. 11-27.
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