Cervical Electrical Stimulation for ALS

"CES will be delivered at rest at various intensities, in combination with either electrical stimulation over peripheral nerves or magnetic stimulation over the motor cortex.~This is an experiment designed to measure CES interactions with other central and peripheral nerve circuits."

"CES will be delivered while the participant performs specific finger or wrist tasks at different degrees of effort.~This is an experiment designed to detect momentary changes in muscle function."