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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

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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.
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Hearing01:31

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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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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.
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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.
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Factors Affecting Perception01:25

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Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
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Predictive coding in auditory perception: challenges and unresolved questions.

Susan L Denham1, István Winkler2

  • 1School of Psychology, University of Plymouth, Drake Circus, Plymouth, PL4 8AA, UK.

The European Journal of Neuroscience
|December 19, 2017
PubMed
Summary
This summary is machine-generated.

Predictive coding, a dominant perception theory, faces challenges in explaining auditory scene analysis. This review highlights key questions to refine the framework and understand auditory perception.

Keywords:
auditory object representationauditory scene analysiscomputational modellingpattern detection

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Area of Science:

  • Cognitive Neuroscience
  • Auditory Perception
  • Computational Modeling

Background:

  • Predictive coding is a leading framework for perception research.
  • It has been applied to explain auditory phenomena and inspire modeling efforts.
  • Auditory scene analysis involves parsing complex sounds into meaningful units.

Purpose of the Study:

  • To identify and motivate critical questions for refining the predictive coding framework.
  • To explore how unresolved auditory perception issues inform general theoretical assumptions.
  • To focus on sequential grouping in auditory scene analysis as a key research area.

Main Methods:

  • Review of experimental and computational modeling studies.
  • Analysis of issues related to sequential grouping in auditory scene analysis.
  • Identification of specific and general questions for predictive coding.

Main Results:

  • Unresolved issues in auditory perception highlight gaps in predictive coding.
  • Focus on auditory pattern detection and bistable perception reveals potential for advancing understanding.
  • Three general questions regarding prediction, generative models, and perceptual experience were identified.

Conclusions:

  • Further research is needed to specify predictive coding and its assumptions.
  • Clarifying the nature of prediction and generative models is crucial.
  • Understanding the correlate of perceptual experience is essential for the framework.