Hi I believe it was a French researcher I was thinking about ... see
http://thebrain.mcgill.ca/flash/a/a_11/a_11_p/a_11_p_hor/a_11_p_hor.html Mentions here the 25 hour and even longer cycles sometimes observed when people have no external cues. Interesting stuff! Take care Jim James M. Clark Professor of Psychology 204-786-9757 204-774-4134 Fax [email protected] >>> <[email protected]> 10-Nov-10 4:43:46 PM >>> On 10 Nov 2010 at 16:41, Jim Clark wrote: > I remember lecturing years ago about someone spending extremely long periods > of time in a cave. I believe > even much longer than the Chilean miners. My recollection is that the > individual gravitated toward a 25 > hour sleep-wake cycle, but I could be wrong in that. That was no someone. That was Nathaniel Kleitman, the father of modern sleep research, renowned for his classic text _Sleep and Wakefulness_ (1939). It was in his laboratory that Aserinsky first observed rapid eye movement sleep. Kleitman and a colleague became famous for their Mammoth cave study, documented in a Scientific American article which was assigned to generations of psychology students. As I recall, Kleitman found that he couldn't adapt to one of the artificial sleep-wake cycles they tried out, and was miserable throughout their stay; His colleague managed just fine. http://tinyurl.com/25z9kz5 for the cave study www.architalbiol.org/index.php/aib/article/download/200/179 for William Dement's affectionate remembrance of the great man. Stephen -------------------------------------------- Stephen L. Black, Ph.D. Professor of Psychology, Emeritus Bishop's University Sherbrooke, Quebec, Canada e-mail: sblack at ubishops.ca --------------------------------------------- --- You are currently subscribed to tips as: [email protected]. To unsubscribe click here: http://fsulist.frostburg.edu/u?id=13251.645f86b5cec4da0a56ffea7a891720c9&n=T&l=tips&o=6380 or send a blank email to leave-6380-13251.645f86b5cec4da0a56ffea7a89172...@fsulist.frostburg.edu --- You are currently subscribed to tips as: [email protected]. To unsubscribe click here: http://fsulist.frostburg.edu/u?id=13090.68da6e6e5325aa33287ff385b70df5d5&n=T&l=tips&o=6383 or send a blank email to leave-6383-13090.68da6e6e5325aa33287ff385b70df...@fsulist.frostburg.edu
