About centre-surround antagonism
Centre-surround antagonism refers to the way retinal neurons organize their receptive fields.
- Centre-surround antagonism refers to the way that light striking the human retina is processed by groups of light-sensitive cone cells.
- The centre component is primed to measure the sum-total of signals received from a small number of cone cells directly connected to a bipolar cell.
- The surround component is primed to measure the sum of signals received from a much larger number of cones around the centre point.
- The two signals are then compared to find the degree to which they disagree.
The International Commission on Illumination (usually abbreviated CIE for its French name, Commission internationale de l’éclairage) is the international authority on light, illumination, colour, and colour spaces. It was established in 1913 as a successor to the Commission Internationale de Photométrie, which was founded in 1900, and is today based in Vienna, Austria.
CIE 1931 XYZ was the first attempt to produce a colour space based on measurements of human colour perception and the basis for almost all other colour spaces.
In 1976, the commission developed the CIELAB and CIELUV colour spaces, which are widely used today.