The potential use of actigraphy to measure sleep in monkeys: comparison with behavioral analysis from videography
- Received Date: 2020-03-18
- Accepted Date: 2020-05-06
- Rev Recd Date: 2020-04-29
- Available Online: 2020-05-13
Abstract: Sleep serves an indispensable function in human health, and its disorders always bring about a cascade of negative consequences. As our closest phylogenetic relatedness, nonhuman primates (NHPs) are especially valuable for the comparative study of sleep, with tremendous potential to provide critical improvements in our understanding of human sleep and sleep disorders. Previous work on measuring sleep in NHPs has been mostly carried out using electroencephalography or videography. In this study, simultaneous videography and actigraphy were recorded in 10 cynomolgus monkeys (Macaca fasciculari) during seven nights (12 hours per night). The durations of wake, transitional sleep and relaxed sleep were scored by analysis of animal behaviors from videography and actigraphy data, using the same behavioral criteria for each state. Results were then compared, and it was found that the actigraphy appeared to constitute a reliable methodology for scoring the state of sleep in monkeys, showing a significant correlation in comparison with those scored by videography. Further epoch by epoch analysis indicated that the actigraphy method was more suitable for scoring the state of relaxed sleep as it can correctly identified 97.569% of relaxed sleep in comparison with video analysis. Only 34 epochs (0.128%) and 611 epochs (2.303%) were interpreted as wake and transitional sleep differently from the videography analysis. The present study validated the behavioral criteria and the actigraphy methodology for scoring sleep, which can be considered as a useful and a complementary technique to electroencephalography and/or videography analysis for sleep studies in non-human primates.
|Citation:||Dongdong Qin, Shufei Feng, Na Wang, Wenjie Sun, Yin Zhou, Tengfang Xiong, Xianlai Xu, Xiaoting Yang, Xiang Zhang, Xue Zhu, Xintian Hu, Yun Liu, Yongchang Chen. The potential use of actigraphy to measure sleep in monkeys: comparison with behavioral analysis from videography[J]. Zoological Research. doi: 10.24272/j.issn.2095-8137.2020.056|