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Dermo-Optical Perception

Dermo-Optical Perception (DOP): Term used by G. Razran to refer to the ability to discriminate color and brightness by means of touch. Also known as “skin vision,” “finger vision,” “dermal vision,” “digital sight” [From the Latin digitus, “finger, toe”], or “cutaneous perception” [From the Latin cutis, “skin”]. [From the Greek derma, “skin,” + optikos, “of sight,” derived from opsomai, “I shall see”]


  1. Parapsychology by Michael A. Thalbourne, Republished by Puente Publications, Charlottesville, VA, USA, 2003