Hacker News new | past | comments | ask | show | jobs | submit login

> if you took the optic nerve and attached it to another part of the neocortex, that part would become the visual region.

FYI, that is super hand-wavey and covers over a lot about how the path of the information from the cones/rods gets into V1. The chain of neurons that pass infomation from your eyes to V1 is well studied [0]. Interruptions in that path cause a lot of sightedness issues and are not fun diseases to have. The musician, Stevie Wonder, among others, aledgedly has a form of blindness known as blindsight [1] where relfexes to motion are perserved, but information is not passed into the conscious mind.

In the end, though neuroscience is a facinating subject, we're just in the beginning of our understanding of the brain. More research is needed.

[0] https://en.wikipedia.org/wiki/Optic_chiasm a good place to start learning about the chain of information transfer.

[1] https://en.wikipedia.org/wiki/Blindsight

EDIT: Additionally, if you want to learn more about neuroscience, the best place to look is at Kandel's Principals of Neural Science [2]. It is a tome of a book, but is the best place to get a deep dive into the brain and our understanding of it. I've not yet seen anything else that is somewhat accessible to the general public but also gets into all the issues with any particular experiment. Most pop-sci book brush over a lot of the very important and thorny issues that each experiment has. I'd also love to know of a good book that is more accessible than Kandel.

[2] https://www.amazon.com/Principles-Neural-Science-Fifth-Kande...




Incidentally, Blindsight is the name of a science fiction novel which I really like. The name is inspired by that phenomenom, but it covers a lot of ground, from neurological processes to how aliens would look like (and how they would think), chinese room, etc.

https://rifters.com/real/Blindsight.htm




Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: