Shorter articles and notes an optimum interval in the assessment of pain threshold |
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Authors: | Dian R Hasalam E A C Thomas |
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Institution: |
a Department of Psychology, University of Bristol, and Statstical Laboratory, University of Cambridge, |
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Abstract: | When the Limiting Method is used to measure heat-pain threshold, the observed threshod has been shown to depend on the size of the stimulus increment used (Haslam, 1965). An experiment is reported here which repeats a finding of the experiment referred to above that the variablility of threshold is relatively large when the stimulus increment is small. A statitistical analysis of the data shows that the previously untested hypothesis that pain threshold is uniform over the population (Hardy, Wolff and Goodell, 1952) is a reasonable one. The psychological implications of threshold variability are discussed in the light of a theoretical model, and a criterion for an optimum interval in the assessment of heat-pain threshold is discussed. |
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