To a large extent, the cause of this hyperexcitability has a genetic basis.In fact, some specific mutations are already known to be responsible for the hyperexcitabilty of these membrane ion channels.

• 广义来说，过度兴奋有遗传学基础，事实上，已经知道一些特殊的突变与这些离子通道的过度兴奋有关。