An analysis of the literature on apparatus used to measure electro dermal responses shows that about ten characteristics have been considered important by the majority of investigators

Greenwald, D. U.

English

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New Apparatus for the Measurement of the Electro Dermal Response

University of Northern Iowa

Proceedings of the Iowa Academy of Science Volume 42 Annual Issue Article 79 1935 New Apparatus for the Measurement of the Electro Dermal Response D. U. Greenwald University of Iowa Copyright ©1935 Iowa Academy of Science, Inc. Follow this and additional works at: https://scholarworks.uni.edu/pias Recommended Citation Greenwald, D. U. (1935) "New Apparatus for the Measurement of the Electro Dermal Response," Proceedings of the Iowa Academy of Science, 42(1), 169-169. Available at: https://scholarworks.uni.edu/pias/vol42/iss1/79 This Research is brought to you for free and open access by the Iowa Academy of Science at UNI ScholarWorks. It has been accepted for inclusion in Proceedings of the Iowa Academy of Science by an authorized editor of UNI ScholarWorks. For more information, please contact scholarworks@uni.edu. 1935] ABSTRACTS 169 results also show that the one-armed driver takes 8% longer time than the same driver using both hands. Errors in observation are very slightly affected by a handicap in manipulative ability, and there is no significant difference between the number of errors made with either or both hands. The correlation of manipulation and errors was -.22 + .08. The correlation between manipulative ability and time taken of the test, i.e., speed, was +.19 + .09. These intercorrelations indicate relative independence of the varia-bles compared. DEPARTMENT OF PSYCHOLOGY, IowA STATE CouEGE, AMIIS, IowA. NEW APPARATUS FOR THE MEASUREJVIENT OF THE ELECTRO DERMAL RESPONSE An analysis of the literature on apparatus used to measure electro dermal responses shows that about ten characteristics have been considered important by the majority of investigators. Apparatus which includes most of these is presented. I ts circuit and accessory photographic recording mechanism is explained. The chief distinguishing features are: 1. Measurement in standard physical units (ohms). 2. Continuous measurement. 3. A permanent record of all variations. 4. Constant visibility of the resistance level and response varia-tions. 5. Ruggedness. 6. Adequate sensitivity for most researches in psychology. 7. Portability. 8. Simplicity of circuit and operation. 9. U sc of alternating exosomatic current. 10. Dry electrodes with little polarization. 11. Very constant current through the observer. 12. Reasonable cost. 13. Single ct1rrent source from a commercial supply lead. DEPARTMENT OF PSYCHOLOGY, UNIVERSITY OF low A, 1ow A CITY, low A. 1Greenwald: New Apparatus for the Measurement of the Electro Dermal ResponsePublished by UNI ScholarWorks, 1935

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New Apparatus for the Measurement of the Electro Dermal Response

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University of Northern Iowa