A new study of the brain's master circadian clock — known as the suprachiasmatic nucleus, or SCN — reveals that a key pattern of rhythmic neural activity begins to decline by middle age. The study, whose senior author is UCLA Chancellor Gene Block, may have implications for the large number of older people who have difficulty sleeping and adjusting to time changes.
Christopher Colwell, professor of psychiatry at the Semel Institute, was interviewed April 28 by Agence France Press and April 29 by National Public Radio's “Talk of The Nation” and USA Today about research showing that neurons in the brains of sleep-deprived rats can enter a sleeplike state even when the rats are awake.
- “Sleep-Deprived Rats Take "Brain Naps" http://www.npr.org/2011/04/29/135841000/sleep-deprived-rats-take-brain-naps
- “Brain May Go Off-line with Lack of Sleep” http://www.usatoday.com/news/usaedition/2011-04-29-sleepingrats29-st_st_...
- “Caught Napping: can we be Awake and Asleep at the same Time? http://newsinfo.inquirer.net/breakingnews/world/view/20110428-333391/Cau...
Jerome Siegel, professor of psychiatry at the Semel Institute and the Veterans Administration hospital, was featured in a Sept. 15 KPCC Larry Mantle Show segment on whether napping or drinking coffee is better for maintaining one’s productivity during the day.