I've had two MRIs when I was a child. For some reason the "thunks" are relaxing to me and I fell asleep during both procedures. I even pressed the "panic button" by mistake when I had a sleep spasm! MRIs are nap time for me :)
Add to that feeling very ill and weak and having a headache. The thunks are equally likely to be experienced as a pleasant rhythmic music or cause your head to spin and make you throwup.
Things that appear trivial and insignificant can cause a great deal of discomfort for people. I actually felt anguish because of a cracked ceiling for example (you're stuck looking at it for days).
I get why people might be scared, but I just don't, and can't see the scary in MRIs. I can fear the outcome, but not the procedure itself.
I'm just curious about what's scary about it. Perhaps fear of the unknown? I knew why that machine was making those noises (my dad was cool and he taught me the basics about MRI machines). Or is just a personality trait, just like fear of cockroaches?
Its why they are called feelings and not thinkies. :)
You're ill, it makes it sucks more somehow.
This decal idea in the article takes the drama out of it I suppose is the best explanation I could offer.