Superior semicircular canal dehiscence can cause individuals to hear their own bodily sounds and experience vertigo when exposed to loud noises or straining.

“So, what can happen is that over that superior semicircular canal, that bone can be missing partly and people can have superhuman hearing. They can hear everything. They can hear their eyeballs moving. They can hear their footsteps. If they're taking a shower, it's deafeningly loud. They really can't take it. If an ambulance drives by, they start spinning. If they are straining on the toilet, they start spinning and can pass out.”