Bitking
February 28, 2019, 3:38pm
46
I suspect that some (most?) of the visual planning is done with sub-cortical structures.
One of the way-stations on the way to V1 is the brain-stem and this tap feeds to amygdala. Considerable evidence points to early visual primitive recognition there for things like faces, secondary sexual characteristics, and basic animal shapes. I am sure that there are pathways from that area that are elaborated through the prefrontal cortex to drive the FEF to focus on these features.
I am not sure how to help you with this. I have been reading papers on the topic of vision for decades and have a pretty good idea of how much of this works. It is unfortunate that I can’t point to a single authoritative source for the things you are asking. Most of the papers I have been reading are written to a single point - often not the point I am researching - and the useful information is there as a side-effect.
I don’t think that you would find it satisfying to have me point you to a …
It seems to be a thing for connectome/cortex researchers to ignore the processing that goes on in the “lower” brain structures. These were/are sufficient to run lizards and amphibians. There is absolutely no reason to think that they re not performing much of their original functions inside of the functioning brain.
The lower brain receives a low-resolution image from the eye area “away” from the fovea and directs the eye to point at interesting areas to form identification of an object with a …
One of the oldest humans performances is to detect faces. People would like to think that we don’t just look at body parts but indeed - that is how the eye-brain sees. Some of the built-in primitives are eyes, faces, secondary sexual characteristics and body dominance/submissive forms. (human morphology seems to be coded here - we don’t like things with the wrong number of legs like spiders and snakes) These have been shown to exist in the amygdala as part of your lizard brain wiring. These are…
I beg to differ.
We are social animals.
The amygdala is very good at picking at picking out faces and social cues.
Did what I did make mom smile or frown?
Did the alpha male groom us or strike us?
Do my peers emit affirming or threatening behavior?
All of this adds to emotional tone to my actions (not yet consolidated in my hippocampus memory buffer) and modulates learning rates. I would not consider this irrelevant to a complex civilization. In fact - we have examples of humans that do n…