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Related Concept Videos

Effects of feedback01:24

Effects of feedback

Feedback in control systems plays a critical role in shaping various operational parameters, extending beyond simple error reduction to influence stability, bandwidth, gain, impedance, and sensitivity. Understanding these effects requires examining a basic feedback system characterized by defined input, output, error, and feedback signals.
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
The Cochlea01:13

The Cochlea

The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
Hearing01:31

Hearing

When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
Perceiving Loudness, Pitch, and Location01:21

Perceiving Loudness, Pitch, and Location

The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by identifying...
Auditory Perception01:17

Auditory Perception

The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the cochlea, a...

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A Lightweight, Headphones-based System for Manipulating Auditory Feedback in Songbirds
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Published on: November 26, 2012

Does feedback matter in an auditory frequency discrimination learning task?

Yael Zaltz1, Daphne Ari-Even Roth, Liat Kishon-Rabin

  • 1Department of Communication Disorders, Sackler Faculty of Medicine, Tel Aviv University, Israel.

Journal of Basic and Clinical Physiology and Pharmacology
|December 21, 2010
PubMed
Summary
This summary is machine-generated.

Auditory learning in adults can occur with or without feedback during frequency discrimination tasks. The initial feedback strategy influences learning, but similar performance gains are achievable regardless of the feedback protocol used.

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Area of Science:

  • Auditory Neuroscience
  • Human Auditory Perception
  • Learning Sciences

Background:

  • Auditory training in normal-hearing adults yields learning gains.
  • The specific impact of feedback on auditory learning gains is less understood.
  • Investigating feedback's role is crucial for optimizing auditory training protocols.

Purpose of the Study:

  • To determine feedback's influence on frequency discrimination task performance.
  • To compare learning gains across different feedback training protocols.
  • To assess background noise effects on auditory learning efficiency.

Main Methods:

  • Two groups of normal-hearing adults (n=17) underwent a single auditory training session.
  • Training involved estimating difference limen frequency (DLF) thresholds for 1 kHz in noise.
  • Participants experienced varying visual feedback schedules (feedback-first vs. feedback-later).

Main Results:

  • Auditory learning occurred irrespective of feedback presence during adaptive frequency discrimination.
  • Altering feedback strategy mid-training disrupted learning effects.
  • The initial feedback protocol appeared to dictate the learning strategy adopted by participants.

Conclusions:

  • Adult auditory learning mechanisms may be constrained by the initial learning strategy.
  • Significant learning gains in frequency discrimination are possible with or without continuous feedback.
  • Understanding feedback's role is key to developing effective auditory training for adults.