How Do You Control the Voltage Grip of a Planarian Fragment?

In plinaria, there are no foreign transgens. There is no mis expression. So in planeria, what we are left with is using ion channel targeting drugs to turn on and off the native ion channels that create the planerian electric map. If we change the voltage gradient, the cells are happy enough to build whatever. And this certainly a dovetailed nicely with other work tat was going on in the labt at the same time. The majority of this is really um internal. It comes from evolution.