Larson Polygraph - City of Berkely Police Dept.

Description:

In 1921, the Chief of Police in Berkeley, Ca., asked John Augustus Larson (1892-1965), a policeman then studying at the University of California at Berkeley, to build a polygraph suitable for police work. This is that instrument. It was also the first that was capable of simultaneously recording blood pressure changes, pulse rate and respiration.

Ref: John A Larson, Lying and Detection: A Study of Deception and Deception Tests (Glen Ridge, 1932).

“Lie Detector Pioneer Dies,”[Baltimore] Sun (Sept. 23, 1965), p. 19.

Date Made: ca 1923

Location: Currently not on view

Place Made: United States: California, Berkeley

Subject: Psychology

Subject:

See more items in: Medicine and Science: Medicine

Exhibition:

Exhibition Location:

Credit Line: Gift from the City of Berkeley Police Department

Data Source: National Museum of American History

Id Number: MG.322715.01Catalog Number: 322715.01Accession Number: 322715

Object Name: Lie Detectorlie detector

Physical Description: metal; wood; rubber; glass (overall (polygraph) material)paper (tape material)wood (case material)glass (case material)Measurements: case: 63 cm x 142.5 cm x 46.5 cm; 24 13/16 in x 56 3/32 in x 18 5/16 in

Guid: http://n2t.net/ark:/65665/ng49ca746ab-9fb5-704b-e053-15f76fa0b4fa

Record Id: nmah_1286189

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