#430 – Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories

5001.556 - 5028.308 Charan Ranganath

But what MRI is itself is just this technique where you put people in a very high magnetic field. Typical ones we would use would be 3 Tesla, to give you an idea. Yeah. So a 3-tesla magnet, you put somebody in, and what happens is you get this very weak but measurable magnetization in the brain. And then you apply a radiofrequency pulse, which is basically a different electromagnetic field.