Related Experiment Video
Updated: May 10, 2026

07:14
A Method to Study Adaptation to Left-Right Reversed Audition
Published on: October 29, 2018
Vision contingent auditory pitch aftereffects.
Wataru Teramoto1, Maori Kobayashi, Souta Hidaka
1Department of Information Science and Systems Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan. teramoto@csse.muroran-it.ac.jp
Experimental Brain Research
|June 4, 2013
Summary
This study demonstrates that visual motion can alter auditory pitch perception. New audiovisual associations form quickly, showing how visual and auditory processing influence each other.
Area of Science:
- Neuroscience
- Psychology
- Auditory Perception
- Visual Perception
Background:
- Visual motion aftereffects are known to be influenced by auditory stimuli.
- Previous research established that auditory cues can create visual motion aftereffects.
Purpose of the Study:
- To investigate the reverse phenomenon: pitch aftereffects contingent on visual motion.
- To explore the mutual influence between visual and auditory information processing.
Main Methods:
- Participants were exposed to audiovisual stimuli pairing apparent visual motion with specific auditory frequencies.
- Adaptation phase involved prolonged exposure to synchronized visual motion and tone sequences.
- Testing phase assessed perceived auditory pitch under different visual motion conditions.
Main Results:
- Apparent visual motion systematically altered the perceived pitch of auditory stimuli.
- The effect was specific to the visual field exposed during adaptation, indicating no simple response bias.
- Audiovisual associations were established rapidly, demonstrating cross-modal influence.
Conclusions:
- Visual information processing can significantly influence auditory perception, reversing previously observed aftereffects.
- The brain rapidly forms new audiovisual associations, highlighting the interconnectedness of sensory systems.
- This research underscores the dynamic and reciprocal interaction between visual and auditory sensory processing.
Related Concept Videos
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...
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 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 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...
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
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.
Color Vision
Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
Perception of Sound Waves
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 frequency...
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...

