Fig. 2.
Accuracies and response times with the pulse oximeter. (A) Pulse oximetry accuracy; (B) pulse oximetry response time: Resident anesthesiologists were less likely to detect changes in oxygen saturation as attentional load increased and in noise. These effects were additive. Anesthesiologists were also slower to respond to changes in oxygen saturation under high-attentional loads and noisy conditions. Bars represent mean responses, error bars represent standard errors, and asterisks represent significance.