Not only is this a interesting look into one of Disney’s earliest rides, it taught me that the auditory cortex is the part of the brain where earworms get stuck.

There’s another venue where “It’s a Small World (After All)” is on continuous loop: the mind of anyone who hears it. The song is a common “earworm,” a piece of music that can easily get lodged in the auditory cortex, the part of the brain that retains audio information, identified by researchers at Dartmouth College in 2005.

(via Metafilter)