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Electroencephalographic (EEG) activity during both human and adult primates' sleep has been proven to be similar and consequently, it could be assessed under similar parameters. However, there is no(More)
Natural selection has resulted in the acoustic convergence of many animal vocalizations. During agonistic interactions vocalizations may vary depending on the role an individual plays in the(More)
The normal sleep patterns of the spider monkey (Ateles geoffroyi) have not been described yet. The objective of this study was to characterize the electrophysiological patterns, sleeping postures,(More)