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 Sibyl his "Exegesis", and later the novels "VALIS", the posthumously published precursor to VALIS, "Radio Free Albemuth", and "The Divine Invasion". Eventually rejected by the venue for which it was written, the major points of Dick's 1975 worldview are set forth, in a style reminiscent of his earlier work, and very similar to his treatment of this material in his later books. The Eye of the Sibyl "The Eye of the Sibyl" is a science fiction short story by American writer Philip K. Dick. It was written sometime around 1975, but not published until 1987 when it was included in volume