Quote:
The prefrontal cortex in sleep.
Muzur A, Pace-Schott EF, Hobson JA.
Laboratory of Neurophysiology, Dept of Psychiatry, Massachusetts Mental Health Center, Harvard Medical School, 74 Fenwood Road, 02115, Boston, MA, USA
Experimental data indicate a role for the prefrontal cortex in mediating normal sleep physiology, dreaming and sleep-deprivation phenomena. During nonrandom-eye-movement (NREM) sleep, frontal cortical activity is characterized by the highest voltage and the slowest brain waves compared to other cortical regions. The differences between the self-awareness experienced in waking and its diminution in dreaming can be explained by deactivation of the dorsolateral prefrontal cortex during REM sleep. Here, we propose that this deactivation results from a direct inhibition of the dorsolateral prefrontal cortical neurons by acetylcholine, the release of which is enhanced during REM sleep. Sleep deprivation influences frontal executive functions in particular, which further emphasizes the sensitivity of the prefrontal cortex to sleep.
PMID: 12457899 [PubMed - as supplied by publisher] [/b]
http://www.ncbi.nlm.nih.gov/entrez/query.f...p;dopt=Abstract
Self-awareness resides in the prefrontal cortex, which shows reduced activity during sleep for most people most of the time. This reduced activity may well be why we can dream of the most bizarre things without being aware of how bizarre they are until we wake up and remember them. Perhaps lucid dreaming is possible for some people because their frontal lobes don't rest during sleep.
http://skepdic.com/lucdream.html
well i get my assertion on various scientific journals on sleep.
http://academic.pgcc.edu/~mhspear/sl...s/nrsleep.html
Quote:
Lobbing a Grenade
But had Hobson and McCarley completely solved the riddle? Dream researcher W. David Foulkes, then at the University of Chicago, decided to find out by systematically waking his subjects during different sleep phases; his results showed that equating REM sleep with dreaming and non-REM sleep with a dreamless state was too simplistic. Although only 5 to 10 percent of sleepers who were woken during a non-REM phase reported dreams, the picture changed drastically when Foulkes reformulated the standard question of sleep research from "Were you dreaming just now?" to "What was going through your head just now?" Suddenly 70 percent described dreamlike impressions during non-REM periods. [/b]
Quote:
The only reliable difference between REM dream reports, sleep-onset reports, and certain other classes of non-REM dream report is that the REM reports are longer. In all other respects, the non-REM and REM dreams appear to be identical. This demonstrates conclusively that fully-fledged dreams can occur independently of the unique physiological state of REM sleep. Therefore, whatever the explanation may be for the strong correlation that exists between dreaming and REM sleep, it is no longer accepted that dreaming is caused exclusively by the REM state.[/b]
Quote:
Dreams, once thought to occur only during REM sleep, also occur (but to a lesser extent) in non-REM sleep phases. It's possible there may not be a single moment of our sleep when we are actually dreamless.[/b]
Quote:
Furhtermore, using this method, you would wake up during an NREM period; you claim that you still dream during this time, which is false.[/b]
Have you ever tried proving yourself wrong. well your wrong we do dream all night their lots of evidence for it the above is just some.
Quote:
It's true that you'd be more tired if you woke up at this time, but that's the reverse of what you should want; by being more awake, you're more likely to LD - that's the crux of WBTB. There's no advantage to waking up during an NREM period to doing so during an REM period. [/b]
The only thing i have to say is try it yourself.
Quote:
There's no advantage to waking up during an NREM period to doing so during an REM period. [/b]
The advantage is their more time lucid dreaming.
Quote:
Dreaming actually does happen in NREM sleep just not as often
and I beleive he is dyslexic
Imran[/b]
We dream all the time.
P.S. can you post in sleep and health lucid dreaming is bad for you if you got any problems with my theory.