USA: Bewijs voor nieuw neurologisch syndroom Electromagnetic Hypersensitivity EHS (Upd)

dinsdag, 02 augustus 2011 - Categorie: Onderzoeken

Geplaatst 28 juli 2011.
Update met opm. Stopumts 2 aug. 2011

International Journal of Neuroscience juli 2011 doi:10.3109/00207454.2011.608139 3


David E. McCarty, M.D., Simona Carrubba, Ph.D., Andrew L.
Chesson, Jr., M.D., Clifton Frilot, II, Ph.D., Eduardo GonzalezToledo,
M.D., Andrew A. Marino, Ph.D.

aDepartment of Neurology, LSU Health Sciences Center, Shreveport, LA, USA
bSchool of Allied Health Sciences, LSU Health Sciences Center, Shreveport, LA, USA
cDepartment of Radiology, LSU Health Sciences Center, Shreveport, LA, USA
*Corresponding author. Address: Department of Neurology, LSU Health Sciences
Center, P.O. Box 33932, Shreveport, LA 71130-3932, USA. Tel.: 1-318-675-6177.

We sought direct evidence that acute exposure to environmentalstrength
electromagnetic fields could induce somatic reactions (EMF hypersensitivity).

Methods: The subject, a female physician selfdiagnosed with EMF hypersensitivity, was exposed to an average (over the head) 60Hz electric field of 300 V/m (comparable to typical environmentalstrength EMFs) during controlled provocation and behavioral studies.

In a doubleblinded EMF provocation procedure specifically designed to minimize
unintentional sensory cues, the subject developed temporal pain, headache, muscletwitching, and skipped heartbeats within 100 s after initiation of EMF exposure (P < 0.05). The symptoms were caused primarily by field transitions (offon, onoff)
rather than the presence of the field, as assessed by comparing the frequency and severity of the effects of pulsed and continuous fields in relation to sham exposure. The subject had no conscious perception of the field as judged by her inability to report its presence more often than in the sham control.

The subject demonstrated statistically reliable somatic reactions in response to exposure to subliminal EMFs under conditions that reasonably excluded a causative role for psychological processes.

EMF hypersensitivity can occur as a bona fide environmentally-inducible neurological syndrome.

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Opm. Stopumts:
Bovenstaande studie betreft een N=1 studie, dus 1 persoon. N=1 studies zijn in dit vakgebied heel gebruikelijk. Bij het Kennisplatform Elektromagnetische velden heeft Stopumts herhaaldelijk aangedrongen op dergelijke N=1 studies: de kosten zijn relatief laag en de studies kunnen heel veel bewijzen: eigenlijk heb je aan 1 ideale persoon voldoende om het bestaan van EHS te bewijzen; toon EHS aan bij 1 persoon en EHS is aangetoond.

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