Lex Fridman Podcast
#430 – Charan Ranganath: Human Memory, Imagination, Deja Vu, and False Memories
Charan Ranganath
And so you're basically using water, the water molecules in the brain as a tracer, so to speak. And part of it in fMRI is the fact that these magnetic fields that you mess with by manipulating these radio frequency pulses and the static field, and you have things called gradients which change the strength of the magnetic field in different parts of the head.
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