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

Dynamic range relations for auditory primary afferents.

Lance Nizami1

  • 1Center for Hearing Research, Boys Town National Research Hospital, 555 N. 30th Street, Omaha, NE 68131, USA. nizamii2@aol.com

Hearing Research
|July 12, 2005
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

Simultaneous dichotic loudness balance (SDLB): Why loudness "fatigues" with two ears but not with one.

Attention, perception & psychophysics·2019
Same author

Effects of external noise on detection of intensity increments.

The Journal of the Acoustical Society of America·2009
Same author

The intensity-difference limen for 6.5 kHz: an even more severe departure from Weber's law.

Perception & psychophysics·2007
Same author

Intensity-difference limens predicted from the click-evoked peripheral N1: the mid-level hump and its implications for intensity encoding.

Mathematical biosciences·2005
Same author

Threshold vs duration for Gaussian-shaped tone-pips of one to four periods duration.

Perceptual and motor skills·2005
Same author

A measure of internal noise based on sample discrimination.

The Journal of the Acoustical Society of America·2003

This study redefines dynamic range in auditory afferents, proposing a new sensitivity measure based on the intensity-difference limen (DL). This method reveals that sloping saturation in neural responses does not indicate cochlear nonlinearity.

Area of Science:

  • Auditory Neuroscience
  • Sensory Physiology

Background:

  • Dynamic range is a key attribute of auditory afferent firing rate plots.
  • Current dynamic range quantification does not accurately measure sensitivity to sound level changes.

Purpose of the Study:

  • To derive a new measure of dynamic range based on intensity-difference limen (DL).
  • To investigate the relationship between DL, dynamic range, and neural response patterns.

Main Methods:

  • Derived an equation for DL in terms of rate-level curve attributes.
  • Calculated dynamic ranges for 62 cat auditory afferents using a DL criterion.
  • Compared dynamic ranges for sloping-saturating versus sigmoidal rate-level plots.

Main Results:

Related Experiment Videos

  • A U-shaped DL vs. level curve was observed.
  • Dynamic range was defined as the level separation corresponding to a criterion DL.
  • Sloping-saturation plots did not exceed sigmoidal plots in dynamic range until a 50 dB DL criterion.

    • Conclusions:

    • The derived method provides a sensitivity-based measure of dynamic range.
    • The findings support the conclusion that sloping saturation is not indicative of cochlear nonlinearity.