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

Informational processing of complex sound. III: interference.

R A Lutfi1

  • 1Department of Communicative Disorders and Waisman Center, University of Wisconsin, Madison 53706.

The Journal of the Acoustical Society of America
|June 1, 1992
PubMed
Summary

Listener performance in discriminating brief multitone sequences improves with increased target uncertainty relative to context uncertainty (sigmaT/sigmaC). This suggests additive contributions of target and context uncertainty to overall decision-making.

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 relative cue reliance in speech-on-speech masking.

The Journal of the Acoustical Society of America·2023
Same author

Auditory detection of hollowness.

The Journal of the Acoustical Society of America·2001
Same author

Children's detection of pure-tone signals with random multitone maskers.

The Journal of the Acoustical Society of America·2001
Same author

Effect of masker harmonicity on informational masking.

The Journal of the Acoustical Society of America·2000
Same author

Informational masking by everyday sounds.

The Journal of the Acoustical Society of America·2000
Same author

Correlational analysis of acoustic cues for the discrimination of auditory motion.

The Journal of the Acoustical Society of America·1999

Area of Science:

  • Auditory perception research
  • Information theory applications
  • Signal detection theory

Background:

  • Understanding auditory perception requires analyzing how listeners process complex sound sequences.
  • Target and context uncertainty significantly impact auditory discrimination tasks.
  • Previous models have not fully elucidated the interplay between target and context uncertainty.

Purpose of the Study:

  • To formally analyze the interaction between target and context uncertainty in discriminating brief multitone sequences.
  • To investigate how variations in target (sigmaT) and context (sigmaC) variability affect listener performance.
  • To evaluate the consistency of results with theoretical models of auditory decision-making.

Main Methods:

  • Applied theoretical frameworks from information theory and detection theory.

Related Experiment Videos

  • Conducted a sample-discrimination task with controlled ideal observer performance.
  • Systematically varied the relative variability of target (sigmaT) and context (sigmaC).

    • Main Results:

    • Listener performance increased monotonically with the ratio sigmaT/sigmaC for both frequency and intensity discrimination tasks.
    • Performance remained constant for a fixed sigmaT/sigmaC, irrespective of target position.
    • Results align with models where the decision variable is a weighted sum of sequence elements.

    Conclusions:

    • Trial-by-trial variability in weighting functions likely limits listener performance.
    • Listener performance is linearly related to the context's information rate, independent of target position or task.
    • Target and context uncertainty additively contribute to the overall uncertainty in auditory decision-making.