The general control system configurations are open-loop (Ij and Ep) and closed-loop (Ej and Ip).
"This is Thinking, mainly Ti." This is why I used the word "refer" because I find it easier to explain input by showing results whether it be via T or F. If I recall the joke: I'm an Injeneer but I donno how to spel it.
Potential uses and oddity can also be a result of rationalization if one wants to split hairs.
I'm at a loss as how to respond to your last statement because I'm obviously not being clear enough. Human sensing (the dictionary meaning) is comprised of S and N. I can say no more.

a.k.a. I/O