Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

Evidence for direction-specific channels in the processing of frequency modulation.

R B Gardner, J P Wilson

The Journal of the Acoustical Society of America

|September 1, 1979

Summary

Auditory system research reveals distinct channels for processing sound frequency changes. Specific adapting stimuli selectively elevated detection thresholds, suggesting specialized pathways for upward frequency modulation, downward frequency modulation, and repetition rate.

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

A randomized controlled trial evaluating the use of an intelligent, fully automated 2D imaging system to detect lame cows and control lameness.

Journal of dairy science·2026

Same author

A history of lameness is associated with reduced proportions of collagen type I relative to type III in the digital cushions of dairy cattle.

Journal of dairy science·2025

Same author

Evaluation of a fully automated 2-dimensional imaging system for real-time cattle lameness detection using machine learning.

Journal of dairy science·2025

Same author

Effects of nonsteroidal anti-inflammatory drugs, therapeutic hoof trimming, and orthopedic block application on lameness in multiparous dairy cattle: A randomized controlled trial.

Journal of dairy science·2025

Same author

Effects of routine treatment with nonsteroidal anti-inflammatory drugs at calving and when lame on the future probability of lameness and culling in dairy cows: A randomized controlled trial.

Journal of dairy science·2022

Same author

A history of lameness and low body condition score is associated with reduced digital cushion volume, measured by magnetic resonance imaging, in dairy cattle.

Journal of dairy science·2021

Area of Science:

Auditory Neuroscience
Psychoacoustics

Background:

The auditory system processes complex acoustic information, including frequency changes.
Understanding the neural basis of frequency modulation (FM) detection is crucial for explaining auditory perception.

Purpose of the Study:

To investigate the existence of feature-specific processing channels within the human auditory system.
To determine if different types of frequency changes are processed by distinct neural pathways.

Main Methods:

Two subjects were tested using a two-interval, two-alternative forced-choice (2IFC) procedure at 1 kHz.
Detection thresholds for frequency sweeps (upward and downward) and sinusoidal FM stimuli were measured after exposure to various adapting stimuli (repetitive sweeps, tone bursts).

Related Experiment Videos

Main Results:

Exposure to repetitive upward frequency sweeps selectively elevated thresholds for detecting upward sweeps.
Exposure to downward sweeps selectively elevated thresholds for detecting downward sweeps.
Sinusoidal FM stimuli thresholds were elevated by both upward and downward sweeps, and to a lesser extent by tone bursts.

Conclusions:

The findings provide evidence for at least three distinct, feature-specific channels in the auditory system.
These channels are specialized for processing upward frequency modulation, downward frequency modulation, and potentially repetition rate.