page_title: Cleve Backster
hierarchical_section_title: Cleve Backster
caption_attribution_description: English: Cleve Backster using a lie detector on a household philodendron.
context_page_description: Grover Cleveland "Cleve" Backster Jr. was an interrogation specialist for the Central Intelligence Agency, best known for his experiments with plants using a polygraph instrument in the 1960s which led to his claim of "primary perception" where he claimed that plants "feel pain" and have extrasensory perception, which was widely reported in the media but was rejected by the scientific community.
context_section_description: Grover Cleveland "Cleve" Backster Jr. (February 27, 1924 – June 24, 2013) was an interrogation specialist for the Central Intelligence Agency (CIA), best known for his experiments with plants using a polygraph instrument in the 1960s which led to his claim of "primary perception" where he claimed that plants "feel pain" and have extrasensory perception (ESP), which was widely reported in the media but was rejected by the scientific community.
caption: Cleve Backster in 1969
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