SciFi aliens and alien imposters

Above this text is a film that I found about this topic on the Internet.

The parasitoid aliens would quite easily take the person under their control. Those aliens must just create the electric impulses that affect a certain neuron group. There is the possibility that those aliens could be some kind of electric eel. And they can create electric impulses which cover the victim's nervous system's electricity. 

That kind of alien creature can simply make contact with the victim. And then it can make that interaction by using axons that will grow inside the victim's skull. Or that creature can control the victim by using the outside electric signals. 

There is the possibility that this kind of creature can turn to control by microchips. In that model, the neuron is connected with microchips. And then it will be put to control the electric cells. Those cells can be the electric eel's electricity cells. 

Maybe those cells are around the axons of those neurons. And the microchips are giving orders to that system. The purpose of those electric cells is to create an extremely high electric level for those axons that transmit information to the brain. 

But when we are thinking of the hypothetical space race that can use some kind of muscle manipulation to control some other creatures. That thing requires only nanotechnology. In that model, the nanomachine can slip into the nose of the victim. 

Then that system will push the manipulators to the nervous tracks that are controlling the muscles. That thing can make it possible to control the victim by using that nanomachine as the transmitter. The alien creatures can have BCI (Brain Computer Interface) that can transmit commands to the nanomachines. This kind of system can be possible in the future.