Introduction.- State of the Art.- Signal Processing Methods for SSVEP-based BCIs.- SSVEP-Based BCI for Lower Limb Rehabilitation.- A Hybrid BCI for Gaming.- EMG-Driven Physiological Model for Upper Limb.- Exoskeleton Control Based on Neural Interface.- Muscle Force Estimation Model for Gait Rehabilitation.- Neuromuscular Model for Gait Rehabilitation.- Conclusions and Future Prospects