圈养雄性黑猩猩夜间自发勃起和手淫(Pan troglodytes)

IF 1.2 4区 生物学 Q4 BEHAVIORAL SCIENCES Behaviour Pub Date : 2022-05-10 DOI:10.1163/1568539x-bja10166
Kristin Havercamp, Matilda Brindle, V. Sommer, S. Hirata
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引用次数: 1

摘要

据报道,只有包括人类在内的少数哺乳动物的雄性会出现夜间阴茎肿胀(NPT),尽管这种罕见可能是难以记录的假象。我们在日本熊本保护区的12只全雄性成年雄性黑猩猩中调查了NPT。我们用红外摄像机在72个晚上(每个人6个)进行了非侵入性记录,在三分之二的人(8/12)中观察到了NPT,总共发生了一些事件。超过四分之三发生在从睡眠到清醒的过渡过程中,这表明NPT可能与快速眼动睡眠有关,与人类相似。在4-6名个体中,手淫与NPT同时发生,包括可能的射精量。虽然详细描述黑猩猩夜间勃起可能有助于我们更好地了解人类这种强大的生理现象,但有必要进行进一步的比较研究,以重建其系统发育史。目前,我们的研究结果支持假设的功能解释,如促进夜间排放以提高射精质量,或增加组织氧合以预防勃起功能障碍。
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Spontaneous nocturnal erections and masturbation in captive male chimpanzees (Pan troglodytes)
Nocturnal penile tumescence (NPT) has been reported for males of only a few mammalian species, including humans, albeit this scarcity might be an artefact of the difficulty of documenting it. We investigated NPT in 12 adult male chimpanzees living in an all-male group at Kumamoto Sanctuary, Japan. Recorded non-invasively with infrared video cameras across 72 nights (6 per individual), we observed NPT in two thirds of the individuals (8/12), with events in total. More than three quarters occurred during a transition from sleep to wakefulness, suggesting NPT may be associated with rapid eye movement sleep, similar to humans. Masturbation occurred in conjunction with NPT, including the likely consumption of ejaculate, in 4–6 individuals. While detailing nocturnal erections in chimpanzees may help us to better understand this robust physiological phenomenon in humans, further comparative research is necessary to reconstruct its phylogenetic history. At present, our findings support hypothetical functional explanations such as the facilitation of nocturnal emissions in order to increase ejaculate quality or an increase in tissue oxygenation to prevent erectile dysfunction.
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来源期刊
Behaviour
Behaviour 生物-动物学
CiteScore
1.80
自引率
7.70%
发文量
44
审稿时长
3 months
期刊介绍: Behaviour is interested in all aspects of animal (including human) behaviour, from ecology and physiology to learning, cognition, and neuroscience. Evolutionary approaches, which concern themselves with the advantages of behaviour or capacities for the organism and its reproduction, receive much attention both at a theoretical level and as it relates to specific behavior.
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