Seamus Thomson

This paper evaluates a wearable dual-modality device combining IPG and PPG, showing IPG's superior sensitivity to arterial recovery and dynamic changes during napping.

This study compares how IPG and PPG sensors respond to temperature-induced vasoconstriction, finding PPG is more sensitive to capillary changes while IPG reflects deeper blood flow.

This study evaluates large-scale electrodermal sensing using Fitbit Sense 2 devices to analyze physiological responses to stressors and circadian rhythms across 16,000 individuals.