Presence of a circadian rhythm in the spider monkey's (Ateles geoffroyi) motor activity

作者: Jairo Muñoz-Delgado , Beatriz Fuentes-Pardo , Alexandra Euler Baum , Nuria Lanzagorta , Rita Arenas-Rosas

DOI: 10.1080/09291010400028823

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摘要: The aim of this study was to characterize the circadian motor rhythm in spider monkey, A. goeffroyi, both entrained and free-running conditions. Four monkeys, 2 males females, were maintained for 32 days constant light (LL) 13.25:10.75 LD. Before each experimental cycle, between LL LD recordings, animals on 12:12 their natural outdoor housing with rest group. Each animal had its own Actiwatch collar recording activity. duration activity periods onset offset averaged condition. Recordings analyzed ACTIWATCH program, time series PGRAPH periodogram analyses. Actograms, histogram plots periodograms created every subject. data also submitted Fourier analysis using POTENCOR determine peaks under Finally, Student's t-tests paired samples w...

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