Auditory perceptual ability affects dichotic listening performance in older adults
1School of Foreign Studies, Tongji University, Shanghai, People's Republic of China.
Laterality
|November 4, 2024
Summary
Older adults
Area of Science:
- Auditory Neuroscience
- Speech Processing
- Cognitive Aging
Background:
- Age-related declines in speech processing are common.
- The influence of auditory perceptual ability on dichotic listening in older adults is not well understood.
Purpose of the Study:
- To investigate how auditory perceptual abilities affect older adults' performance and right ear advantage (REA) in dichotic listening tasks.
- To explore the role of acoustic processing in older adults' dichotic listening outcomes.
Main Methods:
- Two experiments were conducted using dichotic listening tasks with consonant-vowel (CV) words.
- Stimuli varied in consonants, vowels, and lexical tones to manipulate auditory perceptual demands.
- Acoustic processing abilities were assessed in relation to dichotic listening performance.
Main Results:
- Older adults showed reduced accuracy with increased auditory perceptual demands.
- Differences in REA were observed, suggesting hemispheric engagement shifts with task difficulty.
- Older adults with strong acoustic processing skills performed similarly to younger adults.
Conclusions:
- Acoustic processing ability significantly impacts dichotic listening performance in older adults.
- Listener's auditory perceptual abilities are crucial for accurate interpretation of dichotic listening results.
- The findings highlight the importance of considering auditory processing when studying language lateralization in aging populations.
More Related Videos
06:48Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
Published on: June 25, 2019
9.1K
11:39Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique
Published on: September 7, 2022
2.1K
Related Concept Videos
01:01Perception of Sound Waves
4.4K
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...
4.4K
01:21Perceiving Loudness, Pitch, and Location
196
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...
196
01:17Auditory Perception
320
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...
320