The adequate stimulus for avian short latency vestibular responses to linear translation

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Transient linear acceleration stimuli have been shown to elicit eighth nerve vestibular compound action potentials in birds and mammals. The present study was undertaken to better define the nature of the adequate stimulus for neurons generating the response in the chicken (Gallus domesticus). In particular, the study evaluated the question of whether the neurons studied are most sensitive to the maximum level of linear acceleration achieved or to the rate of change in acceleration (da/dt, or jerk). To do this, vestibular response thresholds were measured as a function of stimulus onset slope. Traditional computer signal averaging was used to record responses to pulsed linear acceleration stimuli. Stimulus onset slope was systematically varied. Acceleration thresholds decreased with increasing stimulus onset slope (decreasing stimulus rise time). When stimuli were expressed in units of jerk (g/ms), thresholds were virtually constant for all stimulus rise times. Moreover, stimuli having identical jerk magnitudes but widely varying peak acceleration levels produced virtually identical responses. Vestibular response thresholds, latencies and amplitudes appear to be determined strictly by stimulus jerk magnitudes. Stimulus attributes such as peak acceleration or rise time alone do not provide sufficient information to predict response parameter quantities. Indeed, the major response parameters were shown to be virtually independent of peak acceleration levels or rise time when these stimulus features were isolated and considered separately. It is concluded that the neurons generating short latency vestibular evoked potentials do so as 'jerk encoders' in the chicken. Primary afferents classified as 'irregular', and which traditionally fall into the broad category of 'dynamic' or 'phasic' neurons, would seem to be the most likely candidates for the neural generators of short latency vestibular compound action potentials.

Original languageEnglish (US)
Pages (from-to)253-272
Number of pages20
JournalJournal of Vestibular Research: Equilibrium and Orientation
Volume8
Issue number3
StatePublished - May 1 1998

Fingerprint

Reaction Time
Neurons
Chickens
Action Potentials
Vestibular Nerve
Evoked Potentials
Birds
Mammals

Keywords

  • Birds
  • Evoked potential
  • Jerk
  • Jerk detection
  • Linear jerk
  • Macula
  • Macular velocity detection
  • Otolith
  • Pulsed acceleration
  • Pulsed jerk
  • Vestibular evoked potentials

ASJC Scopus subject areas

  • Neuroscience(all)
  • Otorhinolaryngology
  • Sensory Systems
  • Clinical Neurology

Cite this

@article{d2f3f233286440409051e51ae2636f4a,
title = "The adequate stimulus for avian short latency vestibular responses to linear translation",
abstract = "Transient linear acceleration stimuli have been shown to elicit eighth nerve vestibular compound action potentials in birds and mammals. The present study was undertaken to better define the nature of the adequate stimulus for neurons generating the response in the chicken (Gallus domesticus). In particular, the study evaluated the question of whether the neurons studied are most sensitive to the maximum level of linear acceleration achieved or to the rate of change in acceleration (da/dt, or jerk). To do this, vestibular response thresholds were measured as a function of stimulus onset slope. Traditional computer signal averaging was used to record responses to pulsed linear acceleration stimuli. Stimulus onset slope was systematically varied. Acceleration thresholds decreased with increasing stimulus onset slope (decreasing stimulus rise time). When stimuli were expressed in units of jerk (g/ms), thresholds were virtually constant for all stimulus rise times. Moreover, stimuli having identical jerk magnitudes but widely varying peak acceleration levels produced virtually identical responses. Vestibular response thresholds, latencies and amplitudes appear to be determined strictly by stimulus jerk magnitudes. Stimulus attributes such as peak acceleration or rise time alone do not provide sufficient information to predict response parameter quantities. Indeed, the major response parameters were shown to be virtually independent of peak acceleration levels or rise time when these stimulus features were isolated and considered separately. It is concluded that the neurons generating short latency vestibular evoked potentials do so as 'jerk encoders' in the chicken. Primary afferents classified as 'irregular', and which traditionally fall into the broad category of 'dynamic' or 'phasic' neurons, would seem to be the most likely candidates for the neural generators of short latency vestibular compound action potentials.",
keywords = "Birds, Evoked potential, Jerk, Jerk detection, Linear jerk, Macula, Macular velocity detection, Otolith, Pulsed acceleration, Pulsed jerk, Vestibular evoked potentials",
author = "Jones, {Timothy A.} and Jones, {Sherri M.} and Stephen Colbert",
year = "1998",
month = "5",
day = "1",
language = "English (US)",
volume = "8",
pages = "253--272",
journal = "Journal of Vestibular Research: Equilibrium and Orientation",
issn = "0957-4271",
publisher = "IOS Press",
number = "3",

}

TY - JOUR

T1 - The adequate stimulus for avian short latency vestibular responses to linear translation

AU - Jones, Timothy A.

AU - Jones, Sherri M.

AU - Colbert, Stephen

PY - 1998/5/1

Y1 - 1998/5/1

N2 - Transient linear acceleration stimuli have been shown to elicit eighth nerve vestibular compound action potentials in birds and mammals. The present study was undertaken to better define the nature of the adequate stimulus for neurons generating the response in the chicken (Gallus domesticus). In particular, the study evaluated the question of whether the neurons studied are most sensitive to the maximum level of linear acceleration achieved or to the rate of change in acceleration (da/dt, or jerk). To do this, vestibular response thresholds were measured as a function of stimulus onset slope. Traditional computer signal averaging was used to record responses to pulsed linear acceleration stimuli. Stimulus onset slope was systematically varied. Acceleration thresholds decreased with increasing stimulus onset slope (decreasing stimulus rise time). When stimuli were expressed in units of jerk (g/ms), thresholds were virtually constant for all stimulus rise times. Moreover, stimuli having identical jerk magnitudes but widely varying peak acceleration levels produced virtually identical responses. Vestibular response thresholds, latencies and amplitudes appear to be determined strictly by stimulus jerk magnitudes. Stimulus attributes such as peak acceleration or rise time alone do not provide sufficient information to predict response parameter quantities. Indeed, the major response parameters were shown to be virtually independent of peak acceleration levels or rise time when these stimulus features were isolated and considered separately. It is concluded that the neurons generating short latency vestibular evoked potentials do so as 'jerk encoders' in the chicken. Primary afferents classified as 'irregular', and which traditionally fall into the broad category of 'dynamic' or 'phasic' neurons, would seem to be the most likely candidates for the neural generators of short latency vestibular compound action potentials.

AB - Transient linear acceleration stimuli have been shown to elicit eighth nerve vestibular compound action potentials in birds and mammals. The present study was undertaken to better define the nature of the adequate stimulus for neurons generating the response in the chicken (Gallus domesticus). In particular, the study evaluated the question of whether the neurons studied are most sensitive to the maximum level of linear acceleration achieved or to the rate of change in acceleration (da/dt, or jerk). To do this, vestibular response thresholds were measured as a function of stimulus onset slope. Traditional computer signal averaging was used to record responses to pulsed linear acceleration stimuli. Stimulus onset slope was systematically varied. Acceleration thresholds decreased with increasing stimulus onset slope (decreasing stimulus rise time). When stimuli were expressed in units of jerk (g/ms), thresholds were virtually constant for all stimulus rise times. Moreover, stimuli having identical jerk magnitudes but widely varying peak acceleration levels produced virtually identical responses. Vestibular response thresholds, latencies and amplitudes appear to be determined strictly by stimulus jerk magnitudes. Stimulus attributes such as peak acceleration or rise time alone do not provide sufficient information to predict response parameter quantities. Indeed, the major response parameters were shown to be virtually independent of peak acceleration levels or rise time when these stimulus features were isolated and considered separately. It is concluded that the neurons generating short latency vestibular evoked potentials do so as 'jerk encoders' in the chicken. Primary afferents classified as 'irregular', and which traditionally fall into the broad category of 'dynamic' or 'phasic' neurons, would seem to be the most likely candidates for the neural generators of short latency vestibular compound action potentials.

KW - Birds

KW - Evoked potential

KW - Jerk

KW - Jerk detection

KW - Linear jerk

KW - Macula

KW - Macular velocity detection

KW - Otolith

KW - Pulsed acceleration

KW - Pulsed jerk

KW - Vestibular evoked potentials

UR - http://www.scopus.com/inward/record.url?scp=0031747098&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031747098&partnerID=8YFLogxK

M3 - Article

C2 - 9626651

AN - SCOPUS:0031747098

VL - 8

SP - 253

EP - 272

JO - Journal of Vestibular Research: Equilibrium and Orientation

JF - Journal of Vestibular Research: Equilibrium and Orientation

SN - 0957-4271

IS - 3

ER -