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Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which...
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Related Experiment Video

Updated: Feb 7, 2026

Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction
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Does blindness affect ocular vestibular evoked myogenic potentials?

Ali Bayram1, Mehmet Kalkan1, Nuri Ünsal1

  • 1Department of ENT, Kayseri Training and Research Hospital, Kayseri, Turkey.

American Journal of Otolaryngology
|March 12, 2018
PubMed
Summary
This summary is machine-generated.

Blindness does not affect ocular vestibular evoked myogenic potentials (oVEMP) responses. These auditory evoked potentials can be reliably measured in blind eyes with preserved ocular structures.

Keywords:
BlindnessOcular vestibular evoked myogenic potentials

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Area of Science:

  • Neuroscience
  • Ophthalmology
  • Audiology

Background:

  • Ocular vestibular evoked myogenic potentials (oVEMP) assess the function of the otolith organs and the ocular motor pathways.
  • Understanding how blindness impacts oVEMP responses is crucial for accurate clinical interpretation.

Purpose of the Study:

  • To investigate the influence of unilateral blindness on oVEMP responses.
  • To compare oVEMP parameters between blind and healthy eyes.

Main Methods:

  • Thirty-one subjects with unilateral blindness and 25 healthy controls were recruited.
  • oVEMP latency, amplitude, and amplitude asymmetry ratio (AR) were measured.
  • Measurements were compared between the blind eye, contralateral eye, and control subjects.

Main Results:

  • oVEMP recordings were successfully obtained in 93.5% of blind eyes.
  • No significant differences were found in latency, amplitude, or AR between the blind eye, contralateral eye, and control subjects.

Conclusions:

  • oVEMP responses are not significantly affected by unilateral blindness.
  • Reliable oVEMP recordings can be elicited in blind eyes if the eyeball and extraocular muscles are intact.