Changes in EEG Power Spectral Density and Cortical Connectivity in Healthy and Tetraplegic Patients during a Motor Imagery Task

Figure 5

Example of paradigmatic power spectral densities simulated with the model using the average connection weights estimated on healthy volunteers (left panel) and on tetraplegic patients (right panel). All spectra are normalized to have unitary area in the range 6–50 Hz. It is worth noting the higher peak in the gamma range, and the lower peak in the beta range in tetraplegic patients compared with the healthy subjects.