Colour centre in humans as an area specialized for colour vision. V2, also called the prestriate cortex, is believed to have a small role in colour processing by projecting signals from V1 to the V4-complex. Whether or not colour selective cells are present in V2 is still being investigated. Some optical imaging studies have found small clusters of red-green colour selective cells in V1 and V2, but not any blue-yellow colour selective cells. Other studies have shown that V2 is activated by colour stimuli, but not colour after images.[8] V4 also has feedback on V2, suggesting that there is a defined network
Colour guard carry the M1, M-16, FN FAL or Pindad SSD-1 rifle while the colour officer carries his/her sabre. Composition of the Indonesian colour guard unit The Dutch armed forces have similar ranks corresponding to a colour guard, the "vaandrig" and "kornet" (aspirant officers who have not been sworn in yet). Russian colour guards are composed of: Active units, military academies, and guards of honor carry sabers in the color guard, if needed, rifles may be substituted. The same design is used for color guards in countries of the CIS. If there are multiple color guards marching in a parade at the