Gluckman, J.P., Warm, J.S., Dember, W.M., Thiemann, J.A., & Hancock, P.A. (1988). Subjective workload in simultaneous and successive type vigilance tasks. Bulletin of the Psychonomic Society, 26(6), 517.
(presented by Joel S. Warm) – The NASA TLX was used to assess subjective workload in the performance of comparative discrimination (simulations) and absolute discrimination (successive) vigilance tasks with high and low discriminability signals.