Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Auditory evoked potentials in postconcussive syndrome

M E Drake1, S J Weate, S A Newell

  • 1Department of Neurology, Ohio State University College of Medicine, Columbus, USA.

Electromyography and Clinical Neurophysiology
|December 1, 1996
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Pediatric migraine prophylaxis with divalproex.

Journal of child neurology·2001
Same author

The accuracy of self-reported health behaviors and risk factors relating to cancer and cardiovascular disease in the general population: a critical review.

American journal of preventive medicine·2000
Same author

Can current EMS dispatch protocols identify layperson-reported sentinel conditions?

Prehospital emergency care·2000
Same author

Comparison of central venous and inferior vena caval pressures.

The American journal of cardiology·2000
Same author

Can compliance with nonpharmacologic treatments for cardiovascular disease be improved?

American journal of preventive medicine·2000
Same author

Do emergency medical services dispatch nature and severity codes agree with paramedic field findings?

Academic emergency medicine : official journal of the Society for Academic Emergency Medicine·2000
Same journal

Scientific basis for learning transfer from movements to urinary bladder functions for bladder repair in human patients with CNS injury.

Electromyography and clinical neurophysiology·2011
Same journal

Activity and asymmetry index of masticatory muscles in women with and without dysfunction temporomandibular.

Electromyography and clinical neurophysiology·2011
Same journal

Influence of gender on the EMG signal of the quadriceps femoris muscles and performance in high-intensity short-term exercise.

Electromyography and clinical neurophysiology·2011
Same journal

Common peroneal and tibial nerve paralysis secondary to herpes zoster infection: a case report.

Electromyography and clinical neurophysiology·2011
Same journal

Hearing evaluation of school children in Kuwait.

Electromyography and clinical neurophysiology·2010
Same journal

Visual evoked potential abnormalities in migraine patients.

Electromyography and clinical neurophysiology·2010
See all related articles

Neuropsychological testing after concussion reveals abnormalities in middle latency auditory evoked potentials (MLR). These findings suggest potential subcortical or cortical disturbances following head trauma.

Area of Science:

  • Neuroscience
  • Neurology
  • Audiology

Background:

  • Minor head trauma, or concussion, can lead to controversial neuropsychiatric sequelae.
  • While clinical and imaging studies often show no alterations, neuropsychological and neuropathological abnormalities have been reported.
  • Neurophysiologic diagnostic tests may reveal changes in postconcussive syndrome.

Purpose of the Study:

  • To investigate neurophysiologic changes in individuals experiencing prolonged postconcussive symptoms.
  • To evaluate the utility of middle latency auditory evoked potentials (MLR) and slow vertex responses (SVR) in assessing postconcussive syndrome.

Main Methods:

  • Recorded MLR and SVR in 20 individuals with cognitive difficulties, behavioral changes, dizziness, and headache post-concussion.

Related Experiment Videos

  • MLR utilized alternating polarity clicks (70 dB SL, 4 Hz), with 50 ms analysis time and 20-1000 Hz filter.
  • SVR used rarefaction clicks (0.5 Hz), with 500 ms analysis time and 1-50 Hz filter.

    • Main Results:

    • Reduced amplitude of Na and Pa MLR components observed in postconcussion patients compared to controls.
    • Significantly longer Pa latency in patients.
    • SVR amplitudes were longer in concussed individuals, but latency and amplitude differences were not statistically significant.

    Conclusions:

    • Observed MLR changes may indicate posttraumatic disturbances in subcortical generators or modulating cortical structures.
    • Middle and long-latency auditory evoked potentials show potential as diagnostic tools for evaluating postconcussive neuropsychiatric symptoms.