Differentiation of Activity of Three Mouse Strains with Magnetic Pickup Apparatus

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Science  21 Aug 1959:
Vol. 130, Issue 3373, pp. 455
DOI: 10.1126/science.130.3373.455


An activity pickup, when used with a high-gain amplifier, permits records to be made of essentially all the activity of a mouse. The sensitivity is such that the differences in the activity patterns of strains of mice can be determined.