Microstates in complex and dynamical environments: Unraveling situational awareness in critical helicopter landing maneuvers.

Deolindo, Camila S; Ribeiro, Mauricio W; de Aratanha, Maria A A; Scarpari, José R S; Forster, Carlos H Q; da Silva, Roberto G A; Machado, Birajara S; Amaro Junior, Edson; Koenig, Thomas; Kozasa, Elisa H (2021). Microstates in complex and dynamical environments: Unraveling situational awareness in critical helicopter landing maneuvers. Human brain mapping, 42(10), pp. 3168-3181. Wiley 10.1002/hbm.25426

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Understanding decision-making in complex and dynamic environments is relevant for designing strategies targeting safety improvements and error rate reductions. However, studies evaluating brain dynamics in realistic situations are scarce in the literature. Given the evidence that specific microstates may be associated with perception and attention, in this work we explored for the first time the application of the microstate model in an ecological, dynamic and complex scenario. More specifically, we evaluated elite helicopter pilots during engine-failure missions in the vicinity of the so called "dead man's curve," which establishes the operational limits for a safe landing after the execution of a recovery maneuver (autorotation). Pilots from the Brazilian Air Force flew a AS-350 helicopter in a certified aerodrome and physiological sensor data were synchronized with the aircraft's flight test instrumentation. We assessed these neural correlates during maneuver execution, by comparing their modulations and source reconstructed activity with baseline epochs before and after flights. We show that the topographies of our microstate templates with 4, 5, and 6 classes resemble the literature, and that a distinct modulation characterizes decision-making intervals. Moreover, the source reconstruction result points to a differential activity in the medial prefrontal cortex, which is associated to emotional regulation circuits in the brain. Our results suggest that microstates are promising neural correlates to evaluate realistic situations, even in a challenging and intrinsically noisy environment. Furthermore, it strengthens their usage and expands their application for studying cognition under more realistic conditions.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > University Psychiatric Services > University Hospital of Psychiatry and Psychotherapy > Translational Research Center

UniBE Contributor:

König, Thomas


500 Science > 570 Life sciences; biology








Thomas König

Date Deposited:

18 Jan 2022 09:32

Last Modified:

05 Dec 2022 15:58

Publisher DOI:


PubMed ID:


Uncontrolled Keywords:

aircraft awareness brain mapping electroencephalography empirical research task performance and analysis





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