Cracking Your Knuckles Could Be an Annoying Habit, Study Reveals the Secret of the ‘Popping’ Sound There were only two ...

First, they are inserted into the narrow, tubular space that makes MRI scans possible. Next, they are bombarded with banging ...

Auditory stimuli can be presented using the Etymotics MR-compatible ER-30 sound isolating insert earphones, allowing stimuli to be clearly discriminated from the sounds of the MRI scanners.