Encountering Stress When We Fly

Added: 2026-06-06

[00:00:00]Pilots flew in a simulator while wearing eye tracking [music] sensors that recorded their eye movements.

[00:00:05]During normal flight, the pattern was predictable. Pilots scanned in expected ways between their instruments, outside references, and their engine gauges.

[00:00:14]Then, researchers introduced an unannounced engine failure.

[00:00:17]>> [music] >> And what happened next was striking.

[00:00:20]After the failure, pilots scanned fewer areas of the cockpit.

[00:00:24]>> [music] >> Instead of broad scanning, their attention seemed to narrow. And this wasn't because pilots forgot how to scan.

[00:00:31]>> [music] >> It happened because their brain changed how it was allocating attention under this sudden stress. In neuroscience, thinking reflects a balance between three large-scale brain networks. In routine flight, these networks stay in balance with executive [music] control network leading and the salience network monitoring in the background for threatening things. When something unexpected occurs, like a rough-running engine, that balance quickly shifts. The salience network rapidly increases activity to focus [music] on the potential threat. In aviation, how quickly a pilot can recognize this change and shift thinking impacts how quickly a pilot can return to effective problem-solving to address [music] the situation.