Movement related cortical potentials and sensory motor rhythms during self initiated and cued movements

In this study we have explored the two EEG phenomena that accompany movement preparation and execution: movement related cortical potentials (MRCP) and event-related desynchronization/synchronization (ERD/ERS). The experiments comprised the two conditions for motor task initiation, self paced and cued. The aim of the study was to explore how the introduction of the cue influences the morphological features of the MRCP and ERD/ERS curves. Preliminary results of the tests in 9 healthy subjects showed statistically significant differences in MRCP components for the two conditions and no significant differences in ERD/ERS morphology. Brain-Computer Interface algorithms for online control of assistive devices for restoration of movement may benefit from these results.