Related Experiment Video
Updated: Apr 1, 2026
06:34
Infant Auditory Processing and Event-related Brain Oscillations
Published on: July 1, 2015
17.1K
The Processing of Attended and Predicted Sounds in Time
Tim Paris1, Jeesun Kim1, Chris Davis1
1University of Western Sydney.
Journal of Cognitive Neuroscience
|October 7, 2015
Summary
Attention enhances neural responses to unpredicted sounds, while prediction suppresses responses to sounds. The study found attention enhancement only occurs for unpredicted events, suggesting cue precision influences selection needs.
Area of Science:
- Cognitive neuroscience
- Auditory perception
- Event-related potentials (ERPs)
Background:
- Neural responses show attention enhancement for attended events and prediction suppression for predicted events.
- The interaction between attention and prediction on neural processing remains unclear.
Purpose of the Study:
- To investigate the combined effects of attention and prediction on neural responses.
- To determine how attention enhancement and prediction suppression interact.
Main Methods:
- An orthogonal design combining attention and prediction paradigms was used.
- Participants heard sounds in attended/unattended intervals, with onsets predicted or unpredicted by a visual cue.
- Event-related potentials (ERPs), specifically the N1 component, were analyzed.
Main Results:
- Attention enhancement was observed for attended sounds.
- Prediction suppression was observed for predicted sounds.
- An interaction emerged early in the N1 (50-95 ms), showing attention enhancement only for unpredicted sounds.
Conclusions:
- Attention enhancement is modulated by prediction, occurring primarily for unpredicted events.
- The precision of predictive cues may reduce the necessity for attentional selection when events are both attended and predicted.
More Related Videos
14:05Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
Published on: January 23, 2017
29.9K
09:37Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control
Published on: July 5, 2015
9.6K
Related Concept Videos
01:31Hearing
58.8K
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.
58.8K
01:15Auditory Pathway
8.9K
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...
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
8.9K
01:01Perception of Sound Waves
6.0K
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...
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
6.0K
01:17Auditory Perception
1.5K
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...
1.5K
01:21Perceiving Loudness, Pitch, and Location
1.3K
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...
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...
1.3K
01:13The Cochlea
52.6K
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.
52.6K