Determining corticomuscular connectivity on motor reaction tasks. A step-by-step proposal for EEG and EMG signals processing

LEONARDO ARIEL CANO; ALVARO GABRIEL PIZÁ; DAVID BARBADO MURILLO; EDUARDO FERNANDEZ; FERNANDO DANIEL FARFÁN

San Juan

Congreso; XXIII Congreso Argentino de Bioingeniería y XII Jornadas de Ingeniería Clínica; 2022

Sociedad Argentina de Bioingeniería

Corticomuscular coherence (CMC) is an indicator used to characterize the functional connectivity between the electrical activity from cerebral cortex and muscles. However, in the literature, there are several methods and proposals for its calculation, and these variations are according to the motor activities characteristics that have been studied. The aim of the present work was to determine and quantify corticomuscular functional connectivity using a method with sensitivity for short-duration motor reaction tasks. EEG and EMG data were collected from tasks involving decision-making and motor planning. A novel method was used for CMC calculation, explained step-by-step, that allowed the comparison of the connectivity between several areas of the cerebral cortex and motor muscle. The method, techniques and parameters used in signals processing seem to be appropriate for future functional connectivity analyses.