Editing History of neuroimaging (section)

=== Magnetoencephalography ===
[[File:NIMH_MEG.jpg|left|thumb|189x189px|MEG device with patient.]]
[[Magnetoencephalography]] (MEG) is a technique that looks for regions of activity in the brain by detecting large groups of electrically charged ions moving through cells.<ref name=":2">{{Citation |last=Walla |first=Peter |title=Non-Conscious Brain Processes Revealed by Magnetoencephalography (MEG) |date=2011-11-30 |url=http://dx.doi.org/10.5772/28211 |work=Magnetoencephalography |access-date=2023-10-06 |publisher=InTech|doi=10.5772/28211 |isbn=978-953-307-255-5 |hdl=1959.13/1050838 |hdl-access=free }}</ref> It was originally developed by physicist David Cohen in the early 1970s as a noninvasive procedure.<ref>{{Cite web |title=The David Cohen MEG Laboratory |url=https://meg.martinos.org/ |access-date=2023-10-10 |language=en-US}}</ref> In order to be noninvasive, the MEG was designed like a giant helmet that the patient would put their head inside of and, once turned on, would read the electromagnetic pulses coming from their brain. Later on, in 1972, Cohen invented the SQUID (superconducting quantum interference device), which gave the MEG the ability to detect extremely small changes in ions and magnetic fields in the brain.<ref name=":3">{{Cite web |last=kle |date=2014-09-08 |title=MEG matters |url=https://mcgovern.mit.edu/2014/09/08/meg-matters/ |access-date=2023-10-06 |website=MIT McGovern Institute |language=en-US}}</ref>