The UMB Digital Archive is getting an upgrade! The upgrade requires a content freeze starting 1/27/25 and is expected to last two weeks. Any new user accounts or submissions made to the Archive during this time will not be transferred to the upgraded site. Contact ArchiveHelp@hshsl.umaryland.edu for questions.

Show simple item record

dc.contributor.authorMays, Keith
dc.date.accessioned2012-02-10T21:08:28Z
dc.date.available2012-02-10T21:08:28Z
dc.date.issued2010
dc.identifier.urihttp://hdl.handle.net/10713/919
dc.descriptionUniversity of Maryland in Baltimore. Biomedical Sciences-Dental School. Ph.D. 2010en_US
dc.description.abstractWhen normal speech production is disrupted by perturbing devices, such as dental prosthesis or appliances, a compensatory motor strategy must emerge using unaffected speech articulators. The purpose of this study was to use a unique methodology to measure compensatory oral motor function in response to oral articulatory perturbation. Compensatory speech was evaluated for the fricative "s" in three different vowel contexts, while the oral cavity was perturbed using two different five millimeter thickened devices. Measurements were made of the acoustical spectral properties, ultrasonographic images of mid-sagittal tongue movement, and electrognathographic jaw displacement during speech. Recordings were made at baseline, immediately upon insertion, after 15 minutes, and after two weeks and upon removal of the perturbing device. A Within-Subject 2-way Repeated Measures ANOVA was performed to statistical evaluate the significance of the mean acoustical output, mandibular displacement, and change in tongue height at four time intervals and between each type device with a significance level of p < 0.05. The results revealed that compensatory motor control of speech organs is time and task dependent, and that for /s/ the acoustic output and jaw displacement sensitive. However, the tongue was used to create long-term compensation in response to oral perturbation. Therefore, changes in the oral cavity, such as prosthesis, appliances, and surgery may initially impact speech function. However, the tongue and the jaw movement is altered to compensate for perturbation resulting in new motor control strategies.en_US
dc.language.isoen_USen_US
dc.subjectorofacial functionen_US
dc.subject.meshAcousticsen_US
dc.subject.meshMandibleen_US
dc.subject.meshSpeechen_US
dc.subject.meshTongueen_US
dc.titleCompensatory tongue-jaw strategies during speech in response to intra-oral perturbationen_US
dc.typedissertationen_US
dc.contributor.advisorStone, Maureen L.
dc.identifier.ispublishedYesen_US
 Find Full text

This item appears in the following Collection(s)

Show simple item record