[CQ-Contest] Sleep Deprivation

[Tim Makins, EI8IC]

Well everyone has told me that I have read the graph wrongly, and you might
be all be right; but IF you are, WHY are the red dots for the Caffeine shown
on the graph right from hour 0 ???

Tim, EI8IC

----- Original Message -----
From: "Sylvan Katz" <jskatz at sk.sympatico.ca>
To: "Tim Makins, EI8IC" <ei8ic at eircom.net>; "CQ Contest"
<CQ-Contest at contesting.com>
Sent: 04 October 2001 22:47
Subject: Re: [CQ-Contest] Sleep Deprivation


> >http://wrair-www.army.mil/depts/behavbio/caf2.gif
> >
> > which for those who can't be bothered to click on it, shows that for 48
> > hours at least, a placebo worked as well as caffeine....
> >
> > 73s Tim EI8IC
>
>
> Ooops - that is not the way I read the graph.
>
> The graph seems to say that if 600 mg of caffeine is administer after 48
> hours of sleep deprivation (note the arrow to the 48 hours mark under the
> legend) those that receive caffeine exhibited a significant increase in
> throughput (about 25% increase) for the next 10-12 hours compared to the
> placebo group.
>
> In fact in the text the researchers say:
> "In a search for a safe, effective stimulant to sustain performance when
> sleep is not possible due to operational reasons, we established that a
> single dose of caffeine (300-600 mg; the equivalent of 3-6 cups of brewed
> coffee) can improve performance for 10-12 hours after 48 hours without
sleep
> (see figure: Caffeine after 48 Hours of Sleep Deprivation: Performance on
> Serial Addition/Subtraction). Caffeine, in tablet form, is currently
> considered the drug of choice for the stimulant to sustain performance
> component of the Sleep Management System."
>
> This restores my faith in a couple of good cups of Java during a contest
:-)
>
> .. sylvan
>
> ----------------
> Sylvan Katz, VE5ZX
> Saskatoon, SK
>
>
>


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