Cross-Modal Transfer Following Auditory Task-Switching Training in Old Adults

Area of Science:

• Cognitive Psychology
• Neuroscience
• Gerontology

Background:

• Task-switching involves cognitive control and incurs performance costs.
• Task-switching training can reduce these costs, particularly in younger adults.
• Cognitive aging may limit plasticity and exacerbate task-switching deficits.

Purpose of the Study:

• To investigate if task-switching training benefits extend to older adults.
• To determine if training-induced improvements transfer across sensory modalities (cross-modal transfer).
• To examine age-related differences in training efficacy and transfer.

Main Methods:

• Older adults (62-83 years) underwent auditory task-switching training over four sessions.
• A visual task-switching paradigm assessed cross-modal transfer.
• Active and passive control groups were used to isolate training effects.
• Data from the Kattner cohort were integrated for age-comparative analysis.

Main Results:

• Task-switching training reduced mixing costs in both auditory and visual tasks.
• The magnitude of improvement was similar across age groups.
• Older adults showed a tendency towards more cautious responding.
• No far transfer effects were observed in inhibition, working memory, or fluid intelligence.

Conclusions:

• Task-switching training effectively improves cognitive control in older adults.
• Training benefits manifest at an amodal processing level, suggesting preserved plasticity.
• Age-related cognitive declines do not preclude improvements in set-shifting abilities.