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Stimulus and Recording Variables and Their Effects on Mammalian Vestibular Evoked Potentials by Sherri M Jones; Geetha Subramanian; Wilma Avniel; Yuqing Guo; Robert F Burkard; Timothy A Jones is a Neuroscience article available to read on EtoBox.

What is Stimulus and Recording Variables and Their Effects on Mammalian Vestibular Evoked Potentials about?

Linear vestibular evoked potentials (VsEPs) measure the collective neural activity of the gravity receptor organs in the inner ear that respond to linear acceleration transients. The present study examined the effects of electrode placement, analog filtering, stimulus polarity and stimulus rate on linear VsEP thresholds, latencies and amplitudes recorded from mice. Two electrode-recording montages were evaluated, rostral (forebrain) to 'mastoid' and caudal (cerebellum) to 'mastoid'. VsEP thresholds and peak latencies were identical between the two recording sites; however, peak amplitudes were larger for the caudal recording montage. VsEPs were also affected by filtering. Results suggest optimum high pass filter cutoff at 100-300 Hz, and low pass filter cutoff at 10,000 Hz. To evaluate stimulus rate, linear jerk pulses were presented at 9.2, 16, 25, 40 and 80 Hz. At 80 Hz, mean latencies were longer (0.350-0.450 ms) and mean amplitudes reduced (0.8-1.8 microV) for all response peaks. In 50% of animals, late peaks (P3, N3) disappeared at 80 Hz. The results offer options for VsEP recording protocols.

Who reads Stimulus and Recording Variables and Their Effects on Mammalian Vestibular Evoked Potentials?

Author

Sherri M Jones; Geetha Subramanian; Wilma Avniel; Yuqing Guo; Robert F Burkard; Timothy A Jones

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0165-0270)

Published

2002

Language

EN

Field

Neuroscience (Life Sciences)