Related Experiment Video
Updated: Jul 15, 2026
Noninvasive, High-throughput Determination of Sleep Duration in Rodents
Published on: April 18, 2018
Individual variation in sleep and motor activity in rats
Xiangdong Tang1, Linghui Yang, Larry D Sanford
1Sleep Research Laboratory, Department of Pathology and Anatomy, Eastern Virginia Medical School, P.O. Box 1980, Norfolk, VA 23501, USA. tangx@evms.edu
Abstract:
We examined individual differences in sleep and motor activity across 2 consecutive days in rats. EEG and motor activity were recorded via telemetry in Wistar rats (n=29) for 48h under well-habituated conditions. Rats were grouped based on sleep amounts and stability across days (short [SS, n=7], intermediate [IS, n=15] and long [LS, n=7] sleep) and comparisons were conducted to determine group differences for measures of sleep and motor activity. We found that correlations across recording days were significant for all selected sleep measures and motor activity counts. Rankings for 24h total sleep time and non-rapid eye movement sleep (NREM) were SS
