Activity-Recording Apparatus

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an instrument to automatically record the activity cycle of animals. It is usually a cage with a movable bottom. As an experimental animal moves around in the cage, it exerts the weight of its body on the bottom of the cage. By means of a mechanical, pneumatic, or electrical actuator the displacement of the area is recorded on a tape which is stretched around a rotating drum so that the activity of the animal can be determined over a certain time interval.

REFERENCE

Slonim, A. D. Osnovy obshchei ekologicheskoi fiziologii mlekopitaiushchikh. Moscow-Leningrad, 1961.

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