Application of a Time Series Statistic to Physiology and Psychology

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Science  12 Oct 1962:
Vol. 138, Issue 3537, pp. 141-142
DOI: 10.1126/science.138.3537.141


A statistic describing variability for continuously collected timeordered data with changing mean level is presented. The Mean Square Successive Difference, developed by von Neumann, was employed in the analysis of basal levels of galvanic skin potential recorded for 40-minute periods.