Low Frequency Brain Oscillations (LFOs) are brief periods of oscillatory activity in delta and lower theta band that appear at motor cortical areas before and around movement onset. It has been shown that LFO power decreases in post-stroke patients and re-emerges with motor functional recovery. To date, LFOs have not yet been explored during the motor execution (ME) and imagination (MI) of simple hand movements, often used in BCI-supported motor rehabilitation protocols post-stroke. This study aims at analyzing the LFOs during the ME and MI of the finger extension task in a sample of 10 healthy subjects and 2 stroke patients in subacute phase. The results showed that LFO power peaks occur in the preparatory phase of both ME and MI tasks on the sensorimotor channels in healthy subjects and their alterations in stroke patients.
2022, 2022 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), Pages 226-229
Low Frequency Brain Oscillations during the execution and imagination of simple hand movements for Brain-Computer Interface applications (04b Atto di convegno in volume)
Mongiardini E., Colamarino E., Toppi J., de Seta V., Pichiorri F., Mattia D., Cincotti F.