Rewiring the aging brain: exergaming modulates brain complexity in older adults

Area of Science:

• Neuroscience
• Gerontology
• Human Computer Interaction

Background:

• Age-related cognitive decline is linked to reduced brain signal complexity and neural adaptivity.
• Exergaming presents a novel intervention strategy by integrating physical activity with cognitive challenges.

Purpose of the Study:

• To investigate the impact of a 4-week exergaming intervention on the temporal dynamics of brain signal complexity in healthy older adults.
• To assess changes in brain complexity at rest and during gameplay.

Main Methods:

• Twenty-eight healthy older adults underwent a 4-week exergaming program.
• Electroencephalography (EEG) was recorded at rest and during gameplay.
• Multiscale entropy analysis was applied to quantify brain signal complexity across 64 time scales.

Main Results:

• Resting-state EEG showed shifts in entropy, indicating a transition towards more distributed brain processing.
• During exergaming, brain signal complexity initially decreased, then stabilized, suggesting adaptation to the task.
• Overall, exergaming led to a net reduction in complexity at coarser scales in specific brain regions.

Conclusions:

• Exergaming intervention can beneficially modulate brain signal complexity in older adults.
• The observed changes suggest a potential to counteract age-related neural decline and promote healthy brain aging.
• Findings support exergaming as a viable strategy for enhancing cognitive function and neural adaptability in aging populations.