Perception of monotonic load: different types of microsleep tolerance Anastasiya Runnova, Daria Suetenkova, Rail Shamionov, Anton Selskii, Dmitriy Suetenkov, Maksim Zhuravlev and Vladimir Dorokhov Eur. Phys. J. Spec. Top., 233 3 (2024) 543-558 Published online: 15 December 2023 DOI: 10.1140/epjs/s11734-023-01065-3