Errors in complex systems, such as healthcare settings, generally occur through the accumulation of multiple factors. Although controversy surrounds the mortality estimates, medical errors and accidental injuries nevertheless occur too frequently. It is universally acknowledged that 60-80 % of these errors involve human factors. In real work conditions, physicians’ performance is affected by several factors, such as procedural complexity, lack of experience, degraded communication among healthcare providers, fatigue, and sleepiness. Eye-movement and electroencephalography-based indices can reliably indicate the physician’s fitness-for- duty over the shift. Thus, new support systems based on these neuroergonomic indices can help to improve the quality of care by reducing medical errors.

We work to optimize physician performance, improving patient safety, physicians’ work conditions, and training protocols. Our research focuses on the early detection of impaired physician states that can compromise patient safety, as excessive task load, or sleepiness, and the subsequent continuous feedback. For that, we monitor several psychophysiological indices online, including eye movements and brain activity, and also behavioral indices related to clinical procedures (e.g., time of execution, accuracy).


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Vera, J., Diaz-Piedra, C., Jiménez, R., Sanchez-Carrion, J.M., & Di Stasi, L.L. (2018). Intraocular pressure increases after complex simulated surgical procedures in residents: an experimental study. Surgical Endoscopy,  DOI: 10.1007/s00464-018-6297-7.

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