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Related Concept Videos

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...
Auditory Pathway01:15

Auditory Pathway

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 the...

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A Method to Study Adaptation to Left-Right Reversed Audition
07:14

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Published on: October 29, 2018

Bimodal audio-visual training enhances auditory adaptation process.

Tetsuaki Kawase1, Shuichi Sakamoto, Yoko Hori

  • 1Laboratory of Rehabilitative Auditory Science, Tohoku University Graduate School of Biomedical Engineering Department of Audiology, Sendai 980-8574, Japan. kaw@m.tains.tohoku.ac.jp

Neuroreport
|July 25, 2009
PubMed
Summary

Visual cues enhance auditory speech intelligibility, even for untrained words. Audio-visual training improves the brain's adaptation to degraded speech sounds more effectively than auditory training alone.

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Area of Science:

  • Auditory perception
  • Speech processing
  • Neuroscience

Background:

  • Audio-visual speech perception typically relies on visual cues to supplement auditory information.
  • The impact of audio-visual training on auditory adaptation to degraded speech is not fully understood.

Purpose of the Study:

  • To investigate the effects of auditory training using bimodal audio-visual stimuli on speech intelligibility in normal-hearing individuals.
  • To determine if visual cues enhance auditory adaptation to degraded speech sounds.

Main Methods:

  • Participants underwent auditory training with either auditory-only or audio-visual stimuli.
  • Speech intelligibility was assessed using highly degraded noise-vocoded speech sounds.
  • Training involved both trained and untrained words.

Main Results:

  • Audio-visual training significantly improved speech intelligibility for both trained and untrained words compared to auditory-only training.
  • Visual cues enhanced the auditory adaptation process to novel, degraded speech sounds.

Conclusions:

  • Bimodal audio-visual training offers benefits beyond supplementing auditory information.
  • Visual cues play a crucial role in accelerating auditory adaptation to challenging speech signals.