Until recently, there were no experimental reports of superconductivity in graphene although its close relatives, graphite and fullerenes can be made superconducting by intentionally introducing electrons in the material (doping).
For the British literary movement, see Spasmodic poets. A spasm is a sudden involuntary contraction of a muscle, a group of muscles, or a hollow organ such as the heart. A spasmodic muscle contraction may be caused by many medical conditions, including dystonia. Most commonly, it is a muscle cramp which is accompanied by a sudden burst of pain.
This twitching is called a fasciculation. It is an involutary contraction of a bundle of muscle fibers, that happens because of a spontaneous action potential. Because these spontaneous contractions are limited to one bundle of muscle fibers they will not cause movement in the joints. They are not dangerous in any way, but can be annoying if they last a while.