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dc.contributor.author Puthoff, H. E. en
dc.contributor.author Fontes, Randall G. en
dc.date.accessioned 2013-02-22T19:26:35Z en
dc.date.available 2013-02-22T19:26:35Z en
dc.date.issued 1977 en
dc.identifier.citation Fontes, Randall G. 1977. Organic Biofield Sensor. Department of Engineering Science, Sonoma State University. en
dc.identifier.uri http://hdl.handle.net/10211.1/1665 en
dc.description.abstract The purpose of the investigation reported here was to assess the feasibility of the use of a special class of device (organic sensor) for real-time contactless measurement of psychological stress or other psychological or physiological state in a human subject being monitored. To this end special detectors were developed so that the electrical activity and micromovements of plants (Philodendron oxycardium, Mimosa pudica) and algae (Nitella) could be monitored. The activity of these sensors while in close proximity to a human subject viewing slides of varying emotional content was then examined. The sensors were located inside Faraday cage electrical shielding to eliminate trivial electrical artifacts. To provide an objective indicator of emotional response during viewing, the subject's GSR (galvanic skin response) was recorded to provide a signal to cross-correlate with the organic sensor output. Pilot experiments with the algae Nitella indicated that they were not responsive to the activity of human subjects in close proximity, and therefore experimentation with Nitella was terminated early in the program. With regard to plant sensors, however, experimental findings with twelve subjects indicate that the electrical activity of plants in close proximity to a human subject viewing slides of putative emotional content, although not in one-to-one correspondence with subject GSR, nevertheless shows in some cases (20%) strong evidence of correlation with GSR.* Furthermore, such electrical activity is found not to be an artifact of plant micromotion, the latter being uncorrelated with either subject GSR or plant potential. Furthermore, it is not a system artifact due to slide tray activity or signals in the GSR channel (de- termined by automated control runs). Thus, although we must reject the hypothesis that subject GSR and plant potential fluctuations of a nearby electrically shielded plant are in general correlated, there is evidence for a degree of correlation beyond that expected by chance. en
dc.language.iso en_US en
dc.publisher Department of Engineering Science, Sonoma State University en
dc.subject measuring psychological stress en
dc.subject galvanic skin response en
dc.subject Philodendron oxycardium en
dc.subject Mimosa pudica en
dc.subject Nitella en
dc.title Organic Biofield Sensor en
dc.type Thesis en
dc.contributor.sonomaauthor Fontes, Randall G. en
dc.advisor Jones, Earle en


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