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
Political colour use their respective traditional colours. In India, saffron is traditionally associated with Hinduism, Hindutva and the Hindu nationalist movement. Saffron was chosen because in Hindu Sanatana Dharma, the deep saffron colour is associated with sacrifice, religious abstinence, quest for light and salvation. Saffron or "Bhagwa" is the most sacred colour for the Hindus and is often worn by Sanyasis who have left their home in search of the ultimate truth. White is today mainly linked to pacifism (as in the surrender flag) and in politics of the United Kingdom to independent politicians such as Martin Bell. Yellow is the colour