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Related Concept Videos

Auditory Perception01:17

Auditory Perception

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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...
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Perceiving Loudness, Pitch, and Location01:21

Perceiving Loudness, Pitch, and Location

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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...
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Perception of Sound Waves01:01

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The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
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Perceptual Constancy01:12

Perceptual Constancy

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Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
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Auditory Pathway01:15

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Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
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Hearing01:31

Hearing

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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.
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Related Experiment Video

Updated: Sep 11, 2025

A Two-interval Forced-choice Task for Multisensory Comparisons
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Confidence in auditory perceptual completion.

Cemre Baykan1, Pascal Mamassian2, Alexander C Schütz1

  • 1Philipps-Universität Marburg, Fachbereich Psychologie, AG Sensomotorisches Lernen, Gutenbergstr. 18, Marburg, 35032, Germany.

Neuroscience of Consciousness
|August 18, 2025
PubMed
Summary
This summary is machine-generated.

Listeners often don't realize when auditory filling-in occurs and trust these completed sounds nearly as much as real ones. This research reveals unawareness of auditory filling-in, similar to visual perception.

Keywords:
auditory confidenceauditory continuity illusionmetacognitiontemporal induction

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Area of Science:

  • Auditory perception
  • Cognitive psychology
  • Neuroscience

Background:

  • Studies show visual completion leads to unawareness and confidence biases.
  • Auditory filling-in mechanisms are less understood regarding listener confidence.

Purpose of the Study:

  • To investigate auditory filling-in and its effect on listener confidence.
  • To determine if auditory completion creates similar biases as seen in vision.

Main Methods:

  • Two experiments using continuous and discontinuous tones with masking noise.
  • Collected confidence ratings and forced-choice confidence judgments for continuity decisions.

Main Results:

  • Participants exhibited auditory filling-in, perceiving interrupted sounds as continuous.
  • Confidence ratings correlated with response consistency.
  • Listeners could not reliably distinguish filled-in from continuous auditory stimuli.
  • No significant preference for veridical over completed stimuli was observed.

Conclusions:

  • Listeners are unaware of auditory filling-in.
  • Filled-in auditory information is trusted comparably to veridical information.
  • Findings extend perceptual completion confidence biases from vision to audition.