Monday, December 4, 2017

A Little Known But Powerful Secret About Visual Processing in the Cortex

A Powerful Secret

I'll tell you a secret. Sensory processing in the visual cortex has nothing to do with 3-dimensional scenes. That's already been taken care of by the eye and the retina. Cortical processing is the same for every sensory modality whether auditory, tactile or visual. In the cortex, everything is temporal. It's all about signal timing. It's also about Yin-Yang complementarity: everything comes in pairs.

That is all.


Peter ( said...

"Your Brain 'Blinks' When Your Attention Shifts, Researchers Discover":

I thought about your ideas immediately. Specifically the branch concept and how only one is active. Switching might come at some cost and might explain why stimuli are blocked for a small amount of time.

Louis Savain said...

Hi Peter. Thanks for the link. I wrote an article about this subject back in May. I have known about this for many years. It is one of the things I discovered in my research in the occult texts. I actually found the exact duration of the shift. Check it out.

Short-term Attention Span Lasts 12.6 s and it Takes 35 ms to Switch from one Subject to Another. How do I Know This?

Louis Savain said...

Check out this article about an Australian boy that is missing most of his visual cortex but can still see perfectly. This story seems to corroborate my hypothesis that visual processing does not require special neural circuitry. Obviously, other parts of the boy's brain that are not normally associated with vision have no trouble processing visual signals from the retina.

It's also kind of strange that I published this short article on the 4th and this story comes out 3 days later. But this is something that neurobiologists have known for years. Someone should tell people like Geoffrey Hinton and Gary Marcus that there is no need for special circuitry to process visual information. It's all in the timing.

Boy Missing Visual Section of His Brain Can Somehow Still See, Stunning Doctors

Peter ( said...

Wow, remarkable indeed!

Peter ( said...

I know you probably won't let up, which is fine, but I'm so curious about sequence learning. How does your version work?

My main question is: how is concurrency handled on the sequence level? Patterns record concurrent sensor activity, but patterns can occur simultaneously too. There's very rarely neat, sequential, pattern activity: pattern 1, pause, pattern 2, pause etc. It's usually pattern 1-2-3-4 at once, pause, pattern 4-2-7 at once, pause, etc.

What if two patterns light up simultaneously. How is this recorded? As one sequence with two nodes? Or two sequences with one node? Or something else?

(It's OK if you don't want to answer, my mind is just itching.)

Louis Savain said...


Sorry. Now is not the time and it's not up to me. Just remember that the brain does not model the world. It learns how to sense it. It can instantly sense objects and patterns it has never encountered before.

Peter ( said...

That's OK Louis, I'll stop bugging you. Thanks

Louis Savain said...

Peter, you wrote earlier:

Patterns record concurrent sensor activity, but patterns can occur simultaneously too.

True. Here is a little hint. Different levels in the pattern hierarchy send out connections to different areas (called "lands" in the occult texts) of sequence memory. In other words, patterns on the same "fig" tree are processed separately in sequence memory. This makes it possible for the brain to focus on a single moving dot or a small area of the visual field.

Take care. It will all be revealed when the time comes.

Peter ( said...

I see, very interesting. Thank you for the hint. Keep up the good work, hope all is well.