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Originally posted by jbondo
Even though the OP is sleeping he is still aware of his surroundings and can probably detect a change in light right thru his eyelids just by someone blocking light in his doorway. He may also be able to detect them breathing. I'm sure his senses are more alert due to him being in a relaxed state.
I think this is all pretty natural stuff.
Originally posted by tombangelta
phantom i suggest you actually think of something constructive before starting a thread in ATS
Get the point. I feel your talents would be put to better use in BTS.
Originally posted by The Phantom
if you can recommend a better forum to this be placed in let me know and i can u2u a mod about having it moved.
K Complex
A K-complex is an EEG waveform that occurs during stage 2 sleep. It consists of a brief high-voltage peak, usually greater than 100 µV, and lasts for longer than 0.5 seconds. K-complexes are often followed by bursts of sleep spindles. K-complexes occur randomly throughout stage 2 sleep, but may also occur in response to auditory stimuli. It is the response to auditory stimuli that likely lead to the origin of the term K-complex. Original research in the mid-1900s showed that K-complexes would arise when researchers would knock on the door of a sleeping subject.
Originally posted by jbondo
Another example of being in tune is your internal clock. I don't use an alarm clock at all and I am never late for work.
Originally posted by malganis
Yeah I get this sometimes as well, I think it must be something to do with your ears still picking up noises, especially because it's usually quiet when you are sleeping so even the slightest out of place noise is noticeable. I must say it's a pretty cool trait for our species to have developed.
Originally posted by Lady of the Lake
I know of people who a profoundly deaf who do the same thing.
Originally posted by Lady of the Lake
I sleep with an electric fan on summer and winter because I suffer from tinnitus and I use the fan as white noise so sound has nothing to do with my waking.