Do You invert Vertical Axis or Not?

[VGPolyglot]

HylianYoshi said:
It just feels natural to me. When you tilt your head back, you look up, and when you tilt it forwards, you look down. It should be the same for the control stick and camera.

I normally associate it with the eyes. If my eyes look up, I see up, if they look down I see down.