TY - JOUR A1 - Holzmann, Romain A1 - Koppehele-Gossel, Judith A1 - Voss, Ursula A1 - Klimke, Ansgar T1 - Investigating nuisance effects induced in EEG during tACS application T2 - Frontiers in human neuroscience N2 - Transcranial alternating-current stimulation (tACS) in the frequency range of 1–100 Hz has come to be used routinely in electroencephalogram (EEG) studies of brain function through entrainment of neuronal oscillations. It turned out, however, to be highly non-trivial to remove the strong stimulation signal, including its harmonic and non-harmonic distortions, as well as various induced higher-order artifacts from the EEG data recorded during the stimulation. In this paper, we discuss some of the problems encountered and present methodological approaches aimed at overcoming them. To illustrate the mechanisms of artifact induction and the proposed removal strategies, we use data obtained with the help of a schematic demonstrator setup as well as human-subject data. KW - EEG KW - tACS KW - modulation KW - hardware demonstrator KW - artifact removal Y1 - 2021 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/61140 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-611408 SN - 1662-5161 VL - 15 IS - art. 637080 SP - 1 EP - 14 PB - Frontiers Research Foundation CY - Lausanne ER -