Applying recurrence time entropy to identify changes in event-related potentials Nikita Frolov, Elena Pitsik, Vladimir Maksimenko and Alexander Hramov Eur. Phys. J. Spec. Top., 232 1 (2023) 161-168 Published online: 09 December 2022 DOI: 10.1140/epjs/s11734-022-00743-y