Hearing Aid Use is Associated with Better Mini-Mental State Exam Performance

Area of Science:

• Audiology
• Gerontology
• Cognitive Science

Background:

• Hearing loss is a common issue in the elderly and is linked to cognitive decline.
• The impact of hearing aid (HA) use on cognitive function in older adults remains unclear.

Purpose of the Study:

• To investigate the association between hearing aid use and cognitive function in elderly individuals.
• To determine if hearing aid use is linked to enhanced cognitive performance.

Main Methods:

• A cross-sectional study was conducted at an academic medical center.
• Participants underwent audiometric evaluation and cognitive tests, including the Mini-Mental State Exam (MMSE) and Trail Making Test, Part B (TMT-B).
• The cognitive performance of hearing aid users was compared to non-users and correlated with hearing levels.

Main Results:

• Hearing aid users performed significantly better on the MMSE compared to non-users, despite having poorer hearing thresholds.
• Hearing aid use did not impact performance on the TMT-B, a test relying on visual stimuli.
• Better MMSE performance correlated with better hearing levels at both low and high frequencies.

Conclusions:

• Hearing aid use is associated with better performance on cognitive tests sensitive to auditory input (MMSE), suggesting a benefit for sensory-specific cognitive function.
• The findings indicate that hearing loss may contribute to sensory-specific cognitive decline, rather than global cognitive impairment.
• Given the high prevalence of hearing loss in older adults, hearing aids are recommended to help minimize cognitive impairment.