6 Answers

 Magnetic Resonance Imaging should not be required because its accuracy has not been proven. 

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No Brain Scans for Mental Illness

http://www.cchr.org/quick-facts/no-brain-scans-for-mental-illness.html

There is something called a SPECT scan ...

....MRI indicates abnormalities

....I don't think it shows chemical imbalances 

I had to have an MRI for my spine,Yes things do get a bit closed in in there,if you have a problem with that sort of machine,they can put you in a open Mri scan,,however they may use a MRI on your head to find a physical reason for your actions..but unlikely,however speak to your doctor about it..Here is a photo of the 2 different MRI machines..>>>>>>>><<<<<<<<.. 

They let you wear earplugs and listen to music. They put pillows and rolled up towels around you to make you comfortable. They give you a button to push if you want the MRI to stop.

Unlike the 2015 model this will not be a limited edition and I think it's sufficiently different link from the 2015 version to stand on its own merits and not cannibalize what was special about its predecessor albeit link there are of course all the similarities you get from link using nearly identical movements.