2006-09-04 22:25:44 · 9 answers · asked by belle 1 in Science & Mathematics ➔ Biology
The photoreptor nerve transmit light into electrical impulses that transmit to the macula (a sensitve part of the retina which is an optic nerve located in the back of your eye responsible for color vision) which is then sent to your brain through neurological impulses whisch is translated into the image and color your perceive.
As the Macula is very sensitve it is often damaged in the embrotic stage which can cause color blindness.
EDIT: everyone is correct in saying cones. The cones are mostly and almost completely in the macula.
2006-09-04 22:30:16 · answer #1 · answered by sondra j 3 · 0⤊ 1⤋
There are two light receptors on your retina, cones and rods. They are referred to scientifically as photoreceptor cells. Cones are in the centre of the retina and rods are on the outside edge. Cones respond to higher (coloured) frequencies of light while rods respond to lower (black and white) frequencies. Try this:
Focus your sight on an object in front of you, about ten or fifteen feet away. Without moving your eyes, pay attention to the things visible on the edge of your field of vision. It is possible to see that they look colourless.
Celeste MacCulloch (McCulloch?) performed a study on colour reception and line orientation in the 1950's. It turns out that, on the cortical level (inside your brain), the same cells that respond to colour also respond to whether the contours of an object are horizontal or vertical. This is probably because you never see an object without also seeing its colour.
2006-09-05 05:45:40 · answer #2 · answered by Me in Canada eh 5 · 0⤊ 0⤋
The retina is made up of rods and cones that detect shades and colours. Rods only detect shades; cones detect colours. If all your cones fell out, you'd only see in black and white!
2006-09-05 05:29:19 · answer #3 · answered by Chasiufan 4 · 2⤊ 0⤋
The cone cells found in the wall of retina give the effect of colours.
2006-09-05 19:45:55 · answer #4 · answered by moosa 5 · 0⤊ 0⤋
CONES of eye is responsible for detecting colors.They can identify RED,BLUE and GREEN,which are primary colors of light.
2006-09-05 05:35:08 · answer #5 · answered by king_gauth 1 · 0⤊ 0⤋
cones receptors (located at the retina of the eye)
2006-09-05 05:32:05 · answer #6 · answered by caige 3 · 1⤊ 0⤋
Cones. Rods are for black and white.
2006-09-05 05:30:29 · answer #7 · answered by ssbn598 5 · 1⤊ 0⤋
rods for coloured vision & cones
2006-09-05 05:30:19 · answer #8 · answered by sonali 3 · 0⤊ 1⤋
rods and cones i think....
2006-09-05 05:27:54 · answer #9 · answered by Schmitz 4 · 0⤊ 2⤋