For those of you who would like to learn more about the field, I highly recommend this 3 part lecture by Jeff Lichtman, one of the leaders in this field

Part 1 is about the history of brain imaging and general info about how the brain is wired: https://www.youtube.com/watch?v=MtTOg0mzRJc

Part 2 is about how the brain is connected to muscles through the central nervous system: https://www.youtube.com/watch?v=r1qwQ3Qrzhs

Part 3 is pretty mindblowing, it talks about the imagine technique Google discusses here and about the machinery and microscopes that have to be developed to image a brain and the enormous challenge it posses. https://www.youtube.com/watch?v=2QVy0n_rdBI&t=10s