Effects of Fatigue on Cognitive Performance in Long-Duration Simulated Flight Missions

Autor: Nicklas Dahlström, Fredrik U. Jönsson, Eduardo Rosa, Ola Eiken, Mikael Grönkvist, Johan Willander, Roger Kölegård, Robert Ljung, Igor Knez
Rok vydání: 2020
Předmět:
Zdroj: Aviation Psychology and Applied Human Factors. 10:82-93
ISSN: 2192-0931
2192-0923
Popis: Fighter pilots may be exposed to extended flight missions. Consequently, there is increasing concern about fatigue. We investigated the effects of fatigue and cognitive performance in a simulated 11-hr mission in the 39 Gripen fighter aircraft. Five cognitive tasks were used to assess cognitive performance. Fatigue was measured with the Samn–Perelli Fatigue Index. Results showed that performance in the non-executive task degraded after approximately 7 hr. Fatigue ratings showed a matching trend to the performance in this task. Performance in tasks taxing executive functions did not decline. We interpreted that fatigue can be overridden by increased attentional effort for executive tasks but not for non-executive components of cognition. Participants underestimated their performance and metacognitive accuracy was not influenced by fatigue.
Databáze: OpenAIRE