But then again I've read Matthieu Ricard's book and find his writing to be less than compelling, very subjective and generalizing ideas that have easy to find exceptions. Not to take away from the absolute wealth of knowledge in Buddhism.
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.
Back to Si Chen, here you have:
- Paper about finger reading
https://ijhc.org/wp-content/uploads/2022/07/SCLee-2-2.pdf
- Video explanation