Cheshire Cat

Both eyes receive almost the same view which is fused in the brain to form a single 3-D view of the world. This exhibit allows exploration of the mechanisms of this fusing process. One person acts as a subject and another as an observer. The subject sits against a white background. The observer views the subject with one eye and a blank white surface with the other eye. The observer then sweeps across the blank field with a han,. This will selectively erase all or parts of the person viewed. Sometimes only the subject's smile will remain.