Enhanced Contour-Deviant Mismatch Negativity and Mnemonic Representations in Older Musicians.

Area of Science:

• Neuroscience
• Cognitive Psychology
• Music Cognition

Background:

• Instrumental music performance is linked to improved auditory processing, including speech-in-noise perception.
• The role of auditory perceptual processes in supporting cognition among older adults remains underexplored.

Purpose of the Study:

• To investigate whether music training enhances perceptual precision and auditory memory in older adults.
• To compare auditory cognitive functions in older musicians versus nonmusicians.

Main Methods:

• Electroencephalography (EEG) was used to record brain activity during auditory tasks.
• A passive auditory oddball paradigm measured mismatch negativity (MMN), an indicator of change detection.
• Participants completed auditory mnemonic and perceptual discrimination tasks.

Main Results:

• Musicians demonstrated enhanced MMN amplitudes and left-lateralized MMN source activity.
• Musicians showed significantly improved memory discriminability for auditory targets compared to lures and foils.
• These auditory benefits in musicians were independent of general perceptual discrimination ability or MMN amplitude.

Conclusions:

• Music training enhances auditory perception and memory precision in older adults.
• Musical engagement contributes to cognitive reserve in aging, particularly in auditory domains.
• Findings clarify the specific impact of music training on auditory cognitive functions in later life.