Both Mythbusters (episode entitled "Deadly Straw", air date 9/6/06) and the world-class polygraph expert, Cleve Backster (1924 - 2013), used polygraph machines to establish that the electrical resistance of a plant leaf changes in response to human thought. Upon seeing results that confirmed Backster's, Mythbusters promptly changed their measuring instrument to a resistance-agnostic EEG machine, obviously so they could avoid finding themselves in a position of proving something they didn't want to believe nor understand. At any rate, Does anyone have experience in obtaining proper electrodes and a circuit to measure and graph minute resistance modulations of a high-resistance, like what the polygraph does? I want to enable the general public to obtain their own device for exploring this phenomenon of telepathy.
I have a Galvanic Skin Response Grove Module ordered. I looked up the schematic and see that I will need to cut one trace and solder a wire segment to the board in order to be able to alternate the measuring current through the electrodes.
I also understand that Backster's electrodes were stainless of an unspecified grade, and he used some salt in sterile water and an agar-agar saturated woven cotton patch. I hope to obtain valid results with electrode materials that I can find lying around the bench before I buy stainless or gold ones...I've got motor brushes.
My electronics experience is as a degreed ET with many years (since 1980) bench work and with software development all over the place.
Does anyone want to toss me some constructive experience in this endeavor? Thank you in advance!
I have a Galvanic Skin Response Grove Module ordered. I looked up the schematic and see that I will need to cut one trace and solder a wire segment to the board in order to be able to alternate the measuring current through the electrodes.
I also understand that Backster's electrodes were stainless of an unspecified grade, and he used some salt in sterile water and an agar-agar saturated woven cotton patch. I hope to obtain valid results with electrode materials that I can find lying around the bench before I buy stainless or gold ones...I've got motor brushes.
My electronics experience is as a degreed ET with many years (since 1980) bench work and with software development all over the place.
Does anyone want to toss me some constructive experience in this endeavor? Thank you in advance!