It's called a push/pull. pushing the camera/dolly in, while pulling out (zooming) the lens. making the world smaller, crushing subject and surrounding. The reverse or pull/push expands the world making you feel lost in wide open world. But to answer Iccarus question changing lens from wide angle to close up shifts the same info do a different perspective. it can be very disorienting which is why its used to great effect or you look like a idiot trying to pull off a bad zoom.

You must be outta your damn mind.