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
What Are Friends For? What Are Friends For? "What Are Friends For?" is the first segment of the twenty-sixth episode (the second episode of the second season (1986–87)) of the television series "The Twilight Zone". Alex Mattingly and his young son Jeff move to a remote cabin in the woods following Alex's divorce. Jeff is lonely and unhappy because he has no one for companionship. Jeff awakens in the middle of the night and sees a boy playing in the woods, but the boy disappears before Jeff can speak to him. One day Jeff and the boy Mike meet and they become friends. Mike