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Since I run a sleep lab for a living, just a couple of quick comments. I have no doubt (based on what others, like Trey, have written, and what I have experienced personally) that you can get into a light sleep stage on deco. How deeply asleep one could get would be very individualized. Some people could never relax enough to get more than slightly drowsy, whereas if you have studied self hypnotism or other extreme relaxation techniques, you could probably get into a fairly deep trance while still retaining enough awareness to monitor things like timer beeps or pressure changes. It would be impossible to study brain physiology during actual dives due to the salt water which would short out the electronic connections. There have been EEG studies done during dry deco, but this is very clearly not the same situation as being in the water. There would be nothing to keep a diver from napping during dry deco. In the water you have to be aware of your buoyancy, current, large toothy predators, etc. Wendell G "Aldo P. Solari [APS]" wrote: > > I wonder whether there is any info (papers, grey literature, > anecdotal data, etc.) on the following issue: > > (i) Divers getting into either: (a) hypnothic state, (b) > pseudo-asleep or (c) asleep while doing long decos. > > The question is the following: do we (humans) have any capability > (or pseudo-not-fully-developed-capability) to switch from > sleeping with both brain hemispheres to one at a time (such as > dolphins and other marine mamals do) if we are in the water ? > > Are there any studies of brain activity during long decos ? This > could well be answered by electroencephalograms while doing long > decos when divers are very tired. > > What does the WKPP medical doctor say ? > > A very interesting topic, indeed. > > cheers, > > aldo.solari@ho*.se* > www.ccbb.ulpgc.es/fish-ecology/solaris > ___ > > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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