Functional brain imaging as an objective measure of speech perception performance in adult cochlear implant users

Emily A. Tobey, Michael D. Devons, Kristi Buckley, William B. Cooper, Thomas S. Harris, Wendy Ringe, Peter S. Roland

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

In this study we examined the role of functional brain imaging of regional cerebral bloodflow (rCBF) with the use of single photon emission computed tomography (SPECT) for the objective measurement of brain performance in adult cochlear implant (CI) users during speech perception. The subjects consisted of nine normal-hearing and eight CI individuals who watched a 15-min videotape under two conditions: (1) a visual-only presentation; and (2) a left-monaural audio and visual presentation. Cortical activations were observed bilaterally in Brodmann areas 41, 42, 21, 22 and 38 for normal-hearing control subjects. Bilateral activations were also observed in CI individuals who demonstrated high performance on open-set speech recognition tasks; however, activations were smaller in both amplitude and extent than those observed for normal-hearing individuals. CI individuals with minimal open-set recognition demonstrated only unilateral activation of auditory cortex in the hemisphere contralateral to the ear of implantation. These data support SPECT as a tool for objectively documenting cortical activations in adult CI users.

Original languageEnglish (US)
JournalInternational Journal of Audiology
Volume43
Issue numberSUPPL. 1
StatePublished - Dec 2004

Fingerprint

Speech Perception
Functional Neuroimaging
Cochlear Implants
activation
brain
Hearing
performance
Single-Photon Emission-Computed Tomography
Auditory Cortex
Videotape Recording
Ear
Brain Imaging
Activation
Cochlear Implant
Brain

Keywords

  • Cochlear implants
  • Functional brain imaging
  • Regional cerebral bloodflow
  • SPECT
  • Speech perception

ASJC Scopus subject areas

  • Otorhinolaryngology

Cite this

Tobey, E. A., Devons, M. D., Buckley, K., Cooper, W. B., Harris, T. S., Ringe, W., & Roland, P. S. (2004). Functional brain imaging as an objective measure of speech perception performance in adult cochlear implant users. International Journal of Audiology, 43(SUPPL. 1).

Functional brain imaging as an objective measure of speech perception performance in adult cochlear implant users. / Tobey, Emily A.; Devons, Michael D.; Buckley, Kristi; Cooper, William B.; Harris, Thomas S.; Ringe, Wendy; Roland, Peter S.

In: International Journal of Audiology, Vol. 43, No. SUPPL. 1, 12.2004.

Research output: Contribution to journalArticle

Tobey, EA, Devons, MD, Buckley, K, Cooper, WB, Harris, TS, Ringe, W & Roland, PS 2004, 'Functional brain imaging as an objective measure of speech perception performance in adult cochlear implant users', International Journal of Audiology, vol. 43, no. SUPPL. 1.
Tobey, Emily A. ; Devons, Michael D. ; Buckley, Kristi ; Cooper, William B. ; Harris, Thomas S. ; Ringe, Wendy ; Roland, Peter S. / Functional brain imaging as an objective measure of speech perception performance in adult cochlear implant users. In: International Journal of Audiology. 2004 ; Vol. 43, No. SUPPL. 1.
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