In other words, can percussion on the back of your head somehow reset/affect the nerves deep inside your head that send signals from your ear to your brain? For tinnitus, it's the audio signal. For motion-sickness, it's the balance signal.
I always assumed that the loud noise reduces sensitivity, tuning out some quiet signals like tinnitus. Same thing as not being able to hear well after a loud concert.
In other words, can percussion on the back of your head somehow reset/affect the nerves deep inside your head that send signals from your ear to your brain? For tinnitus, it's the audio signal. For motion-sickness, it's the balance signal.