TECHNICAL NOTE: SOME VIEWS ON THE TREATMENT OF "ARTIFACTS" IN PSYCHOPHYSIOLOGICAL RECORDINGS |
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| Authors: | Richard A Sternbach Artstotle A Alexander David G Rice Norman S Greenfield |
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| Institution: | Department of Psychiatry, University of Wisconsin Medical School, and Wisconsin Psychiatric Institute |
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| Abstract: | The treatment of artifactual responses in psychophysiology is rarely discussed or made explicit in research reports. The rationales and procedures of five approaches are presented: excluding the data; averaging other epochs; subjective estimation; straight-line connecting; and following the pen. Each approach is based on a somewhat different theoretical orientation, and the choice of each will depend on the researcher's theoretical preference and also the relative “costs” of losing data vs programming special instructions. Other considerations such as objectivity, consistency, and replicability are discussed. |
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| Keywords: | Artifacts Artifactual responses Data analysis Interpolating data |
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