I've got a sort of "mind-reading" system involving interpretation of electric fields/impulses in the brain, basically an advanced BCI (brain-computer interface), but the key point of this system is that it's used across species, with this mind-reading being accessible across species and thus brain waves/brain fields almost being a sort of "universal language" in this regard. Now obviously every species would have different ways of perceiving some things in the world, so Species X would not have the same neural code for a color that they see differently from us, but the patterns in Species X's brain activity and in humans' brain activity would be the same for a color that we both can see in the same way; or perhaps, if both cultures have similar enough concepts of "shoes" with the same meaning, when thinking of a shoe the neural code representing the concept would be the same (or close).
How feasible is it to suggest, as this system does, that even across different planets the neural code representing info/input as electricity would be the same? Is there an infinite range of possibilities for it, or is there more or less only one "system" for representing sensory data through electricity when branching out over the course of evolution and natural selection from foundations of "input vs no input"? Or, basically: could I use a human's communication BCI on an alien?