Stare-in-the-crowd effect evolved from a necessity for fast and accurate gaze perception for complex social interactions (Emery 2000). According to this model, an eye direction detector (EDD) mechanism - a neurocognitive system responsible for the rapid detection of eyes in the environment and their gaze direction – arose as a function of the geometry created by a dark circular iris relative to the white sclera (Baron-Cohen 1994). Specifically, it is contended that the increased ratio of exposed sclera in the eye outline of humans serves to enhance the velocity and acuity of gaze direction perception (Kobayashi and Kohshima 2001). Baron-Cohen, S. (1994)
The Eye of the World seals on the Dark One's prison, the Dragon banner of Lews Therin Telamon, and the Horn of Valere. At the civilized world's border, the group enters the Blight (the polluted region under the Dark One's control) to protect the Eye. After a pursuit they meet the Green Man and he reveals the Eye. The group is then confronted by the Forsaken Aginor and Balthamel. As battle ensues, Balthamel and the Green Man slay each other. Soon after, Rand defeats Aginor and uses the Eye to decimate the Trolloc army and defeat Ba'alzamon. As a result, Moiraine concludes that Rand is