Could Shadow People Be Aliens?

There has been lab research that shows electromagnetic fields canaffect the temporal lobe of the brain in a way that causes hallucinations. It's hypothetically possible that some one living in a high e m f environment, such as near high tension wires, might have this happened to them. i need distress that this is only a hypothetical possibility. We don't have proof that this is happening in the field. So this one may or may not be a natural explanation of some shadow people encounters. But let's suppose that when investigating a given report, we've checked out all the natural explanations and none of them seem like good candidates. At this point, a peranormal investigator would consider non natural explanations