Subject:  Repeat -- Low frequency affects brain (Segerback).
Date:     Thu, 23 Nov 2000 053737 -0600
From:     Roy Beavers 
To:       guru 
--------------------------------------------------

........This message is a repeat with the missing portion added......

It seems that some readers received the message in an incomplete format.
I must now send each message to the list five times.  The server will
not send all in one transmission.  I cannot be sure whether all of the
earlier transmissions were in error??  I believe we are again near a 
number of five hundred readers.  And, it is evident to me -- from the
various "nondeliveries" I receive -- that many or you are maintaining
lists which forward-on at least some of the EMF-L mail.  I have been
asked if that is OK?  Certainly!  You may do so with my blessing...guru.

-------- Original Message --------
Subject: Re: Low frequency affects brain (Segerback)....]
Date: Thu, 23 Nov 2000 10:37:38 +0100
From: Per SegerbSck 
To: 
References: <3A1C60B1.D44452EC@emfguru.com>

Roy,
No, it is not.
The last part of the abstract is gone??

Anyway, here it is again:
----------------
      Roy,
      Interesting study indicating interaction of magnetic field to CNS
      Rgds
      Per S/FEB


      Clin Neurophysiol 2000 Nov 1;111(11):1942-1948


Brain frequency magnetic fields alter cardiac autonomic control mechanisms.

Sastre A, Graham C, Cook MR

Midwest Research Institute, 425 Volker Boulevard, MO 64110, Kansas City, USA

[Record supplied by publisher]

Objective: Heart rate variability (HRV) is a noninvasive indicator of
sympathetic and vagal cardiovascular control known to be tightly correlated
with sleep stages. Recent studies indicate that HRV in humans is altered by
nocturnal exposure to power-frequency (60 Hz) magnetic fields. Given the
central origin of autonomic cardiac control, we determined if field exposure
in the beta(1) EEG/MEG frequency range was a more effective stimulus for HRV
alteration than 60 Hz fields, and explored the mechanisms involved.Methods:
Healthy young men were exposed (n=9) overnight to an intermittent magnetic
field (16 Hz, 28.3 microTesla, muT), or sham exposed (n=9), under blind test
conditions in a laboratory exposure facility.Results: Field exposure was
associated (P<0.05) with reduced power in the low band of the HRV frequency
spectrum, and with decreases in mean heart rate. Analysis of the timing of
the R waves surrounding each on-off transition of the intermittent field
revealed no evidence for a direct effect on the cardiac
pacemaker.Conclusions: Magnetic field exposure in the EEG/MEG beta(1)
frequency range alters HRV via a CNS effect. Phase-resetting experiments
rule out a direct effect on the cardiac pacemaker. Biophysical calculations
of the intensity of the electric fields induced in brain versus heart under
the present exposure conditions are also consistent with and support a
central rather than a peripheral site of action.

PMID: 11068227

----------------------------------------------

----- Original Message -----
From: "Roy Beavers" 
To: "Per Segerback" 
Cc: "WILLE B.RLIN" 
Sent: Thursday, November 23, 2000 1:11 AM
Subject: [Fwd: Low frequency affects brain (Segerback)....]


> Per:
>
> Is the below research report complete???    ........guru......
>
> -------- Original Message --------
> Subject: Low frequency affects brain (Segerback)....
> Date: Tue, 21 Nov 2000 16:54:33 -0600
> From: Roy Beavers 
> Reply-To: roy@emfguru.com
> Organization: EMF-L List...
> To: undisclosed-recipients:;
>
>
>
> .......More research from EMF-L.......
>
> Drs.  "Tony" Sastre and "Chuck" Graham are both well recognized within
> the EMF research community for their integrity and the quality of their
> work......
>
> Actually, their lab -- Midwest Research of Kansas City, Missouri -- has
> conducted previous research along this line.  Some of the previous studies
> also showed various brain activity when exposed to EMF.....  Then, as now
> (below), they used human subjects -- which just about makes their work
> unique in the EMF community!  Then, as now (below), the number of subjects
> was/is necessarily small.....  So, all of the Moulder-like
industry/goverment
> zombies have continued to ignore the implications of the Midwest Research
> Institute's important, consistent (and potentially highly significant)
> findings.......guru.......
>
>
> -------- Original Message --------
> Subject: low frequency affect brain
> Date: Tue, 21 Nov 2000 21:25:53 +0100
> From: Per SegerbSck 
> To: "Roy Beavers" 
>
>       Roy,
>       Interesting study indicating interaction of magnetic field to CNS
>       Rgds
>       Per S/FEB
>
>
>       Clin Neurophysiol 2000 Nov 1;111(11):1942-1948
>
>
> Brain frequency magnetic fields alter cardiac autonomic control
mechanisms.
>
> Sastre A, Graham C, Cook MR
>
> Midwest Research Institute, 425 Volker Boulevard, MO 64110, Kansas City,
USA
>
> [Record supplied by publisher]
>
> Objective: Heart rate variability (HRV) is a noninvasive indicator of
> sympathetic and vagal cardiovascular control known to be tightly
correlated
> with sleep stages. Recent studies indicate that HRV in humans is altered
by
> nocturnal exposure to power-frequency (60 Hz) magnetic fields. Given the
> central origin of autonomic cardiac control, we determined if field
exposure
> in the beta(1) EEG/MEG frequency range was a more effective stimulus for
HRV
> alteration than 60 Hz fields, and explored the mechanisms
involved.Methods:
> Healthy young men were exposed (n=9) overnight to an intermittent magnetic
> field (16 Hz, 28.3 microTesla, muT), or sham exposed (n=9), under blind
test
> conditions in a laboratory exposure facility.Results: Field exposure was
> associated (P


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