RT Journal Article
T1 Cortical processing during robot and functional electrical stimulation
A1 Cho, Woosang
A1 Vidaurre, Carmen
A1 An, Jinung
A1 Birbaumer, Niels
A1 Ramos-Murguialday, Ander
AB Introduction: Like alpha rhythm, the somatosensory mu rhythm is suppressed in the presence of somatosensory inputs by implying cortical excitation. Sensorimotor rhythm (SMR) can be classified into two oscillatory frequency components: mu rhythm (8–13 Hz) and beta rhythm (14–25 Hz). The suppressed/enhanced SMR is a neural correlate of cortical activation related to efferent and afferent movement information. Therefore, it would be necessary to understand cortical information processing in diverse movement situations for clinical applications. Methods: In this work, the EEG of 10 healthy volunteers was recorded while fingers were moved passively under different kinetic and kinematic conditions for proprioceptive stimulation. For the kinetics aspect, afferent brain activity (no simultaneous volition) was compared under two conditions of finger extension: (1) generated by an orthosis and (2) generated by the orthosis simultaneously combined and assisted with functional electrical stimulation (FES) applied at the forearm muscles related to finger extension. For the kinematic aspect, the finger extension was divided into two phases: (1) dynamic extension and (2) static extension (holding the extended position). Results: In the kinematic aspect, both mu and beta rhythms were more suppressed during a dynamic than a static condition. However, only the mu rhythm showed a significant difference between kinetic conditions (with and without FES) affected by attention to proprioception after transitioning from dynamic to static state, but the beta rhythm was not. Discussion: Our results indicate that mu rhythm was influenced considerably by muscle kinetics during finger movement produced by external devices, which has relevant implications for the design of neuromodulation and neurorehabilitation interventions.
SN 1662-5137
YR 2023
FD 2023
LK https://hdl.handle.net/11556/4499
UL https://hdl.handle.net/11556/4499
LA eng
NO Cho , W , Vidaurre , C , An , J , Birbaumer , N & Ramos-Murguialday , A 2023 , ' Cortical processing during robot and functional electrical stimulation ' , Frontiers in Systems Neuroscience , vol. 17 , 1045396 . https://doi.org/10.3389/fnsys.2023.1045396
NO Publisher Copyright: Copyright © 2023 Cho, Vidaurre, An, Birbaumer and Ramos-Murguialday.
NO This work was supported by Daegu Gyeongbuk Institute of Science and Technology (DGIST), the Ministry of Education, Science and Technology of Republic of Korea, the Fortüne-Program of the University of Tübingen (2422-0-0), Eurostars Project E! 113928 SubliminalHomeRehab, the BMBF (Bundesministerium für Bildung und Forschung) (FKZ:01QE2023), and “Brain2Move” project (GFA:ID08, Diputación Foral de Gipuzkoa).
DS TECNALIA Publications
RD 26 jul 2024