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Extended high-frequency pure tone hearing thresholds and core executive functions.
K Jonas Brännström1, Elisabeth Karlsson1, Sebastian Waechter1
1a Department of Clinical Science, Section of Logopedics, Phoniatrics and Audiology , Lund University , Lund , Sweden.
International Journal of Audiology
|June 14, 2018
Summary
This study found that differences in extended high-frequency hearing between ears correlate with executive functions, particularly response inhibition. Hearing asymmetry in these high frequencies may impact cognitive abilities.
Area of Science:
- Audiology
- Neuroscience
- Cognitive Psychology
Background:
- Extended high-frequency hearing (10-14 kHz) is crucial for understanding auditory processing.
- Executive functions, including working memory, inhibitory control, and cognitive flexibility, are vital for daily cognitive tasks.
- The relationship between subtle hearing differences and cognitive performance requires further investigation.
Purpose of the Study:
- To investigate the association between extended high-frequency hearing thresholds and key cognitive functions.
- To explore correlations between hearing asymmetry and measures of working memory capacity, inhibitory control, and cognitive flexibility.
- To determine if hearing impairments in the extended high-frequency range impact executive functions.
Main Methods:
- Experimental study design.
- Pure tone audiometry conducted at 10, 12.5, and 14 kHz to assess extended high-frequency hearing.
- Cognitive assessments included working memory capacity (WMC), inhibitory control (response inhibition), and cognitive flexibility (information updating and shifting).
Main Results:
- No significant correlations were found between average high-frequency hearing thresholds and cognitive measures.
- Significant negative correlations were observed between the difference in hearing thresholds between the best and worst ear and inhibitory control.
- Hearing threshold asymmetry in the extended high-frequency range was negatively correlated with global executive function.
Conclusions:
- Extended high-frequency hearing threshold asymmetry is linked to inhibitory control and global executive function.
- These findings suggest an interrelationship between executive functions, specifically response inhibition, and hearing asymmetry.
- Further research is warranted to understand the mechanisms underlying this association.
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