Paper: A Perceptual Channel for Information Transfer Over Kilometer Distances: Historical Perspective and Recent Research. Proceedings of the IEEE Vol. 64 No. 3 March 1976 by Harold Puthoff, Member, IEEE and Russell Targ, Senior Member, IEEE.


For more than 100 years, scientists have attempted to determine the truth or falsity of claims for the existence of a perceptual channel whereby certain individuals are able to perceive and describe remote data not presented to any known sense. This paper presents an outline of the history of scientific inquiry into such so-called paranormal perception and surveys the current state of the art in parapsychological research in the United States and abroad. The nature of this perceptual channel is examined in a series of experiments carried out in the Electronics and Bioengineering Laboratory of Stanford Research Institute. The perceptual modality most extensively investigated is the ability of both experienced subjects and inexperienced volunteers to view, by innate mental processes, remote geographical or technical targets including buildings, roads, and laboratory apparatus. The accumulated data indicate that the phenomenon is not a sensitive function of distance, and Faraday cage shielding does not in any apparent way degrade the quality and accuracy of perception. On the basis of this research, some areas of physics are suggested from which a description or explanation of the phenomenon could be forthcoming.
Published in: Proceedings of the IEEE ( Volume: 64 , Issue: 3 , March 1976 )
Page(s): 329 – 3543
Date of Publication: March 1976 
 ISSN Information:
DOI: 10.1109/PROC.1976.10113

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