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Reevaluating Order Effects in the Binaural Bithermal Caloric Test.

Publication ,  Journal Article
Burnette, E; Piker, EG; Frank-Ito, D
Published in: Am J Audiol
March 8, 2018

PURPOSE: The purpose of this study was to determine whether a significant order effect exists in the binaural bithermal caloric test. METHOD: Fifteen volunteers (mean age = 24.3 years, range = 18-38 years) with no history of vestibular disorder, hearing loss, concussion, or neurological disease underwent caloric testing on 3 occasions. Irrigations were randomized using 8 possible order combinations. The parameters of interest included unilateral weakness, directional preponderance, total response from the right ear, and total response from the left ear. RESULTS: Order effects were analyzed using 2 methods. The first analysis was done looking at the 8 possible orders. We also had an a priori established hypothesis that the first irrigation tested would influence the calculation of unilateral weakness more than the other 3 irrigations. To test this hypothesis, the 8 orders were condensed into 4 order conditions based on the first irrigation. The effect of order was determined using analysis of variance tests. Although the first irrigation tended to be the largest, no significant effects were observed. CONCLUSIONS: This experiment demonstrated that while there is great inter-individual and intra-individual variability in caloric test results, the order of irrigations had no significant effect in the test. Future studies may explore the effects of nonphysiological factors on test results.

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Published In

Am J Audiol

DOI

EISSN

1558-9137

Publication Date

March 8, 2018

Volume

27

Issue

1

Start / End Page

104 / 109

Location

United States

Related Subject Headings

  • Young Adult
  • Vestibule, Labyrinth
  • Vestibular Function Tests
  • Supine Position
  • Reference Values
  • Otorhinolaryngology
  • Observer Variation
  • Male
  • Humans
  • Healthy Volunteers
 

Citation

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Burnette, E., Piker, E. G., & Frank-Ito, D. (2018). Reevaluating Order Effects in the Binaural Bithermal Caloric Test. Am J Audiol, 27(1), 104–109. https://doi.org/10.1044/2017_AJA-17-0028
Burnette, Elizabeth, Erin G. Piker, and Dennis Frank-Ito. “Reevaluating Order Effects in the Binaural Bithermal Caloric Test.Am J Audiol 27, no. 1 (March 8, 2018): 104–9. https://doi.org/10.1044/2017_AJA-17-0028.
Burnette E, Piker EG, Frank-Ito D. Reevaluating Order Effects in the Binaural Bithermal Caloric Test. Am J Audiol. 2018 Mar 8;27(1):104–9.
Burnette, Elizabeth, et al. “Reevaluating Order Effects in the Binaural Bithermal Caloric Test.Am J Audiol, vol. 27, no. 1, Mar. 2018, pp. 104–09. Pubmed, doi:10.1044/2017_AJA-17-0028.
Burnette E, Piker EG, Frank-Ito D. Reevaluating Order Effects in the Binaural Bithermal Caloric Test. Am J Audiol. 2018 Mar 8;27(1):104–109.

Published In

Am J Audiol

DOI

EISSN

1558-9137

Publication Date

March 8, 2018

Volume

27

Issue

1

Start / End Page

104 / 109

Location

United States

Related Subject Headings

  • Young Adult
  • Vestibule, Labyrinth
  • Vestibular Function Tests
  • Supine Position
  • Reference Values
  • Otorhinolaryngology
  • Observer Variation
  • Male
  • Humans
  • Healthy Volunteers