The classic book on this subject is Zen and the Brain: Toward an Understanding of Meditation and Consciousness by James H. Austin - https://en.wikipedia.org/wiki/Zen_and_the_Brain and https://mitpress.mit.edu/9780262511094/zen-and-the-brain/ and http://www.zenandthebrain.com/
Be warned though; it is a huge, dense and detailed book since the author is both a neuroscientist/neurologist and a zen meditation practitioner himself.
Look up the articles and videos from Alex Gómez Marín too. A few of these are in Spanish, but technical Spanish will almost perfectly map into technical English with any good online translator. I'd say the wording, constructs and Romance based words in papers are 100% the same and they will translate perfectly fine.