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 minimum audible angle: binaural spatial acuity with moving sound sources

D R Perrott, A D Musicant

    The Journal of Auditory Research
    |October 1, 1981
    PubMed
    Summary

    Auditory localization accuracy is minimally affected by sound source motion, though moving sounds cause perceived shifts. This suggests independent auditory motion and spatial resolution detectors.

    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

    Cognitive restoration of reversed speech.

    Nature·1999
    Same author

    Aurally aided visual search under virtual and free-field listening conditions.

    Human factors·1996
    Same author

    Simulation of free-field sound sources and its application to studies of cortical mechanisms of sound localization in the cat.

    Hearing research·1994
    Same author

    Binaural localization: influence of stimulus frequency and the linkage to covert peak areas.

    Hearing research·1993
    Same author

    Auditory and visual localization performance in a sequential discrimination task.

    The Journal of the Acoustical Society of America·1993
    Same author

    An insert earphone system for delivery of spectrally shaped signals for physiological studies.

    The Journal of the Acoustical Society of America·1993

    Area of Science:

    • Auditory perception
    • Psychoacoustics
    • Human auditory system

    Background:

    • Accurate auditory localization is crucial for spatial awareness.
    • Previous research primarily focused on stationary sound sources.
    • The impact of sound source motion on localization precision remains less understood.

    Purpose of the Study:

    • To investigate the effects of sound source velocity on auditory localization accuracy.
    • To determine if auditory motion detection and spatial resolution share common mechanisms.

    Main Methods:

    • Four young adults with normal hearing participated.
    • Sound pulses from a moving loudspeaker were presented at varying velocities.
    • Minimum audible angle (m.a.a.) measured localization precision.
    • Apparent source position shifts were recorded.

    Main Results:

    • Localization precision (m.a.a.) showed a significant increase only at the highest velocity (240 degrees/sec).
    • Slower velocities yielded m.a.a. comparable to stationary sources.
    • Constant errors (apparent shifts) increased with velocity, indicating a perceived motion bias.
    • Minimum audible movement angle (m.a.m.a.) and m.a.a. appear independent.

    Conclusions:

    • Auditory localization precision is largely preserved with moderate sound source motion.
    • Perceived shifts in auditory image position correlate with source velocity.
    • The auditory system may possess specialized motion detectors, separate from those for spatial resolution.

    Related Experiment Videos