13Nov/091
Visual Illusion : Impossible Figures
Our eyes sometimes seem to play tricks on us in the form of visual illusions. One type of illusion involves impossible figures, such as the one in the video above. Impossible figures fool the brain into creating the impression of a whole figure when the figure is viewed from certain perspectives. In particular, our brains work in two general modes of visual processing:
1- Bottom-up processing: The process by which the brain forms perceptions by piecing together bits and pieces of sensory data to form meaningful patterns.
2- Top-down processing: The process by which the brain forms perceptions by recognizing whole patterns without first piecing together their component parts.
Source : Psychology, Concepts and Applications By Jeffrey S. Nevid
November 13th, 2009 - 19:12
so true, I've always wondered about that amazing ability of our brains in the way they handle illusions, specially the visual ones. sub7an Allah.