MinireviewCircadian rhythms of body temperature and motor activity in rodents: Their relationships with the light-dark cycle
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2020, Cell ReportsCitation Excerpt :The mice had free access to water and food and an inverted 12-hour light/dark cycle to perform experiments during the dark (active) phase. Testing during the light phase induces a pronounced behavioral inhibition and rodents perform better during the active phase (Benstaali et al., 2001; Schaar et al., 2010). More specifically, Zeitgeber Time (ZT0) corresponds to the start of the light period, and ZT 12 refers to the start of the dark period.
The effect of varying laboratory conditions on the locomotor activity of the nocturnal Namaqua rock mouse (Micaelamys namaquensis) and the diurnal Four-striped grass mouse (Rhabdomys dilectus)
2020, ZoologyCitation Excerpt :Since all of these factors are known to affect the behavior of animals in captivity (Reffinetti, 2004, 2010; Abramov et al., 2008; Van Jaarsveld et al., 2019), we investigated these factors by sequentially introducing each factor to elucidate its effect on the activity rhythms of the two study species in the laboratory. Locomotor activity is frequently used as a proxy for the entrainment of activity rhythms (Ishii et al., 1996; Benstaali et al., 2001; Ackermann et al., 2016). In this study, M. namaquensis showed robust and consistent nocturnal activity rhythms throughout all experimental conditions, confirming the strict nocturnality of the species (Van der Merwe et al., 2014, 2017; 2019).