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International Journal of Neuroscience July 28, 2011.
ELECTROMAGNETIC HYPERSENSITIVITY: EVIDENCE FOR A NOVEL NEUROLOGICAL SYNDROME
Viernes 12 de agosto de 2011 · 1079 lecturas
ELECTROMAGNETIC HYPERSENSITIVITY: EVIDENCE FOR A NOVEL NEUROLOGICAL SYNDROME
Posted online on July 28, 2011. (doi:10.3109/00207454.2011.608139)
David E. McCarty, M.D.a, Simona Carrubba, Ph.D.a, Andrew L. Chesson, Jr., M.D.a, Clifton Frilot II, Ph.D.b, Eduardo Gonzalez-Toledo, M.D.c, Andrew A. Marino, Ph.D.a,*
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. E-mail address: amarino@lsuhsc.edu
ABSTRACT
Objective: We sought direct evidence that acute exposure to environmental-strength electromagnetic fields could induce somatic reactions (EMF hypersensitivity).
Methods: The subject, a female physician self-diagnosed with EMF hypersensitivity, was exposed to an average (over the head) 60-Hz electric field of 300 V/m (comparable to typical environmental-strength EMFs) during controlled provocation and behavioral studies.
Results: In a double-blinded EMF provocation procedure specifically designed to minimize unintentional sensory cues, the subject developed temporal pain, headache, muscle-twitching, and skipped heartbeats within 100 s after initiation of EMF exposure (P < 0.05). The symptoms were caused primarily by field transitions (off-on, on-off) 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.
Discussion: 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.
Conclusion: EMF hypersensitivity can occur as a bona fide environmentally-inducible neurological syndrome.
Keywords
Electromagnetic fields, Evoked potentials, Hypersensitivity, Provocation study, Sensory transduction, Sleep study.
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