It is possible to shift the time of maximal intellectual acuity by
allowing individual to "free run" in the absence of external
synchronizing cues. These are biorhythm experiments. But when cues
are provided, individuals rapidly return to their "normal" patterns.
There are many possible explanations ranging from endocrine functions
to levels of neuromodulators within the brain. You might search
literature on human biorhythms, central excitatory state,
mesencephalic reticular activating system, pineal function.
rlh
>I want to know why brain only starts working properly from 5-6 PM to
>Midnight for some people, and why their attention level is very low all the
>day before.
>Has anybody an explanation ? What's published on the topics ?
>>Thanks
Richard L. Hall, Ph.D.
Comparative Animal Physiologist
University of the Virgin Islands
2 John Brewers Bay
St. Thomas, U.S.V.I. 00802
340-693-1386
340-693-1385 FAX
rhall at uvi.edu
"Live life on the edge...the view is always better" rlh
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