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Stimulus duration and vestibular sensory evoked potentials (VsEPs). | LitMetric
Recording the linear vestibular sensory evoked potential (VsEP) relies on moving the head in a prescribed manner to synchronously activate neurons of the gravity receptor organs. One problematic issue in accomplishing this is the potential coactivation of cochlear neurons. Although the major stimulus parameters required to elicit the vestibular response have been characterized, some of the determinants of auditory coactivation have not been clearly addressed. In the present study, we show that the duration of the linear cranial jerk stimulus plays a critical role in avoiding coactivation of auditory responses during VsEP recordings. Acoustic masking procedures are essential when recording the VsEP, particularly when using stimulus durations of less than 1 ms.
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