What human vision visualise is it same as what your eye perceive from the surrounding?

Question

Does your vision is created by your brain only?

Answer 1

Babies are born with a functional brain and eyes yet they have to "learn" to see. The light from their field of vision eventually becomes focused on their retinas upside down and reversed left to right. But that is not what they see in their brain. Also, each eye has a field of vision split vertically down the middle with half of what is seen going to the right brain and half going to the left brain. Yet they see an integrated picture with either eye. Because they have two eyes, they can perceive depth because the views are not identical. They can see color even though the wavelengths of light (spread by a rainbow?) have no color until activated by three types of cones (pigments) on the retina sensitive to different wavelengths. The eye can mix the three signals to produce all shades or the lack of color. Every eye has a blind spot (where the optic nerve connects to the retina) but babies learn to fill it into an unbroken vision. Babies must learn the difference between straight and curved lines which is why so many optical illusions work (except on people who live in the jungles where there are few straight lines!). People born blind do not organize their brains for sight but use the capacity to heighten other senses like smell or hearing, etc. Great question!

Answer 2

Vision is so much more than simply what your eye perceives! Think about how many times you've taken a photograph, then when you look at the developed photo you're surprised. For instance, objects often seem much further away or smaller in the photo or there's distractions in the background that you hadn't noticed when you took the picture or the colors seems different.

The picture that is recorded by the camera (especially a good quality camera) is very similar to the image that forms on your retina (that would be considered "what the eye perceives"). Your brain then interprets that image, and it adds all sorts of information and makes adjustments.

For instance, there's something called "color constancy" where we see a color as the same whether we are looking at it under fluorescent light (which is bluish) or incandescent light (which is yellowish). But if you take photos of an object under these 2 different light conditions, the colors in the photos will be very different. But you didn't notice the difference in color, because your brain automatically made an adjustment to compensate for the different light conditions.

"Size constancy" is another adjustment your brain makes while interpreting the image that forms on your retina. It adds in information about how far away an object is, then factors that in to detemine how large the object actually is. An object that is farther away will form a smaller image on the retina, but the brain knows that object is far away and factors in that information, so you "see" the object as being the size it actually is. But a camera will "see" the object as being small.

Optical illusions take advantage of these adjustments and interpretations that the brain makes and uses them to "fool" the eye.

Answer 3

A part of retina is called Macula. Macula is small but the most important. When we closely and concentratedly look at a sight like we see through a microscope macula forms a picture and relays it to occipital cortex. This vision stays in mind. This is recapitulated and seen in dreams also. The entire field of vision sends impulses to the retina but these are only seen not visualised. Only macular vision is stored.

Answer 4

i would think not,, physically yes most percieve light and its interpreted by your brain as sight, but insight, thought dreams,, and could you tell me if you see the the color green the same as i do, i;m sure what you call green is what you were told its , but do you see it the same as everyone else or maybe its really what i see as blue,, also i'm told that people w/ higher IQs see things differently tahan people w/ lower scores,, this one was fun to answer thanks.................

Answer 5

Indeed this is.