Impact of cognitive load on pupil dilation: A comparative study of young and older adults

Key Points

• Pupil dilation responses differ markedly between young and older adults under cognitive load, indicating age-related variations.
• Young adults showed an average increase of 30% in pupil dilation compared to older adults during cognitive tasks.
• Observational analysis across various cognitive load tasks indicates diverse physiological responses between age groups.
• Findings highlight the need for further research on age-related effects in cognitive processing mechanisms.