A Revised Procedure for the Calibration of the Activity-Wheel

摘要: The reliability of Shirley's method calibration (1928)1 has been approved by Munn,2 Rundquist and Bellis,3 Zieve.4 We hope to show that, in spite the use currency this method, Shirley failed support her conclusion that revolving-drum technique is a reliable means measuring spontaneous activity animals. realized coefficient, however high, meaningless unless instrument itself consistent; case, all cages involved measurement are equal 'difficulty.' She says own study "the variability within normal group animals was found be so great scrutiny consistency revolving-cage imperative. .. ." It obvious themselves practically equivalent, any differences observed performance different may indicate nothing but variation characteristics cages. This equivalence fails demonstrate. fundamental error lies calibration. Note method.