3 ms·
Nope :) You might have some ideas about how the brain might work from bullshitters, like that 'false memory specialist' who gave interview to slate. And you a
by dchichkov 13y ago
Nope :) You might have some ideas about how the brain might work from bullshitters, like that 'false memory specialist' who gave interview to slate.
And you actually might learn some real stuff from people like these guys from UC Berkeley, who can recover video sequences by identifying an ML model with the visual cortex an then proceeding further and recovering unseen video sequences from fMRI of V4 area of neocortex.
... Now I only wish I could find a forum where a link to a research publication like this:
* https://news.ycombinator.com/item?id=3031698 https://news.ycombinator.com/item?id=3031698 [Reconstructing visual experiences from brain activity evoked by natural movies]
Would not have an order of magnitude less interest than a link to a slate article like this:
* https://news.ycombinator.com/item?id=6349590 https://news.ycombinator.com/item?id=6349590 [
How Can You Tell a False Memory From a True One?]
- mikeash 13y agoI don't understand what reconstructing visual experiences from the brain using scanning equipment has to do with the mechanisms of memory or the possibility of remembering things that didn't occur. They're completely different things. The mechanisms of memory are not, as far as I know, well understood. However, it's well established that people can and routinely do remember things that did not occur. The why and how may be speculative, but the fact that it happens is not.
- dchichkov 13y agoIf you want to understand why this example is so relevant, try to understand what exactly step-by-step they did to recover these images. Here is the link again: https://news.ycombinator.com/item?id=3031698 https://news.ycombinator.com/item?id=3031698 [Reconstructing visual experiences from brain activity evoked by natural movies] Hint: how can you explain that sometimes, the recovered image contains an object completely different from that seen by a subject of the experiment? [say, tree instead of a man] Hint: can similar experiment be done with the part of the pre-frontal cortex responsible for associating visual memories with the condition in which these memories were formed? [imagined, dreamed, seen]