Neurophysiological Estimation of Interruptibility: Demonstrating Feasibility in a Field Context

Inappropriately timed interruptions from task-relevant electronic devices have been shown to have a negative impact on accuracy and efficiency in difficult task contexts. Research has also shown that these risks can be minimized by timing interruptions appropriately based on estimates of a user’s cognitive workload. The work reported here examines the potential for using body-worn electrophysiological sensors to assess cognitive workload in challenging field environments. Analysis of electroencephalogram (EEG) data gathered from a high fidelity military training exercise reveals that neurophysiological signals can provide the basis for accurate estimation of workload in harsh operational contexts.