RT Conference Proceedings T1 Influence of trans-spinal magnetic stimulation in electrophysiological recordings for closed-loop rehabilitative systems A1 Insausti-Delgado, Ainhoa A1 Lopez-Larraz, Eduardo A1 Bibian, Carlos A1 Nishimura, Yukio A1 Birbaumer, Niels A1 Ramos-Murguialday, Ander AB Recent studies have shown the feasibility of spinal cord stimulation (SCS) for motor rehabilitation. Currently, there is an increasing interest in developing closed-loop systems employing SCS for lower-limb recovery. These closed-loop systems are based on the use of neurophysiological signals to modulate the stimulation. It is known that electromagnetic stimulation can introduce undesirable noise to the electrophysiological recordings. However, there is little evidence about how electroencephalographic (EEG) or electromyographic (EMG) activities are corrupted when a trans-spinal magnetic stimulation is applied. This paper studies the effects of magnetic SCS in EEG and EMG activity. Furthermore, a median filter is proposed to ameliorate the effects of the artifacts, and to preserve the neural activity. Our results show that SCS can affect both EEG and EMG, and that, while the median filter works well to clean the EEG activity, it did not improve the contaminations of the EMG activity. The obtained results underline the need of cleaning EMG and EEG signals contaminated by SCS, which is essential for optimal closed-loop rehabilitation. PB Institute of Electrical and Electronics Engineers Inc. SN 9781509028092 SN 1557-170X YR 2017 FD 2017-09-13 LK https://hdl.handle.net/11556/2064 UL https://hdl.handle.net/11556/2064 LA eng NO Insausti-Delgado , A , Lopez-Larraz , E , Bibian , C , Nishimura , Y , Birbaumer , N & Ramos-Murguialday , A 2017 , Influence of trans-spinal magnetic stimulation in electrophysiological recordings for closed-loop rehabilitative systems . in 2017 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society : Smarter Technology for a Healthier World, EMBC 2017 - Proceedings . , 8037369 , Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS , Institute of Electrical and Electronics Engineers Inc. , pp. 2518-2521 , 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2017 , Jeju Island , Korea, Republic of , 11/07/17 . https://doi.org/10.1109/EMBC.2017.8037369 NO conference NO Publisher Copyright: © 2017 IEEE. NO ACKNOWLEDGMENT This study was funded by the Baden-Württemberg Stiftung (GRUENS ROB-1), the Deutsche Forschungsgemeinschaft (DFG, Koselleck), the Fortüne-Program of the University of Tübingen (2422-0-0), and the Bundesministerium für Bil-dung und Forschung BMBF MOTORBIC (FKZ 13GW0053) and AMORSA (FKZ 16SV7754). The work of A. Insausti-Delgado was supported by the Basque Government’s scholarship for predoctoral students. DS TECNALIA Publications RD 27 sept 2024