References
MP, discrimination loss
Assembly modeling with the tDCS equipment used in our study, with the anode positioned over M1 and the cathode positioned over the cerebellum of the other hemisphere.Methods: (1) The subject is subjected to brain stimulation through transcranial direct current stimulation (tDCS). (2a) The brain-computer interface (BCI) uses electroencephalography signals to control the on/off and velocity of the motorized pedal. (2b) The BCI processes the brain signals, sending them to turn on the motorized pedal. (2c) The virtual reality (VR) device is used to active motor imagery (MI).Event-related desynchronization (ERD) analysis using the time-frequency representation. The ERD patterns were analyzed in Matlab after each protocol session. The distribution of ERD changes in the time-frequency representation over Cz and topographic maps of the mean ERD power obtained while the patient was pedaling the MP for (Pearson correlation between the velocities of cycling and rhythms 8–12 Hz (Mu), 13–22 Hz (low beta), and 23–35 Hz (high beta). The Pearson correlation coefficient measures how closely two variables are related on a scale from −1 (red) to 1 (blue), where 0 (white) represents no linear correlation.Functional parameters for the assessed subject.Mean evolution of every somatosensory parameter measured over the time course of our study.We can interpret the target in grams (g) in the following way: 0.05 g as normal sensation in the hand and foot; 0.2 g as decreased sensitivity and difficulty discriminating texture (light touch); 2.0 g as decreased protective sensitivity in the hand, inability to discriminate texture, and difficulty discriminating shapes and temperature; 4.0 g as loss of protective sensation in the hand and sometimes the foot, loss of texture discrimination, and inability to discriminate shapes and temperature; 10 g as loss of protective sensation in the foot, texture discrimination loss, and inability to discriminate shapes and temperature; and 300 g as only the feeling of deep pressure remaining. The parameters were evaluated according to the dermatome levels.