Effect of continuous light on periodic s
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Johnson, Maynard S.
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Article
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1939
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John Wiley and Sons
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English
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It has been shown (Johnson, '26) that the white-footed mouse has, normally, a well-marked daily periodicity of spontaneous activity, and that this periodicity persists for months when the mouse is kept in continuous darkness. About half of each 24-hour period is spent in almost continuous activity,