Ok, this is a actually a magnetoencephalography (MEG) scanner for human brain imaging. MEG works by detecting the tiny (femtotesla) magnetic fluctuations at the surface of the head that arise from the brain’s electrical activity. Unlike MRI, MEG can measure the timing of brain activity with millisecond precision, allowing researchers to study the rapid brain events that underlie human cognition.
The news is, MIT's McGovern Brain Institute is getting one of these puppies. Here's the link.