I took my brain for a roller coaster ride

I was tired on the train today.  So instead of reading or fiddling around with my phone, I just sat and kind of blankly stared out the window.  Not really looking at anything, just letting the scenery wipe across my retinas.  When the train stopped at the stations, I noticed something curious.  I had the very strong sensation that the train was still moving, but in the opposite direction.  I tried to reason myself out of this by comparing stationary objects in the station with the stationary windowpane of the train and verifying that nothing was, in fact, moving.  Regardless, I couldn't shake the feeling and it was entertainingly disorienting.

I know that some smarty-pants people read this blog... what is that phenomenon called?  My google-fu is broken.