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Medical Forum / General / General / January 2008Effects of high frequency electromagnetic field (EMF) emitted by mobile phones on the human motor cortex
Effects of high frequency electromagnetic field (EMF) emitted by mobile phones on the human motor cortex Satomi Inomata-Terada, Shingo Okabe, Noritoshi Arai, Ritsuko Hanajima, Yasuo Terao, Toshiaki Frubayashi, Yoshikazu Ugawa * Department of Neurology, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan email: Yoshikazu Ugawa (ugawa-tky@umin.net) *Correspondence to Yoshikazu Ugawa, Department of Neurology, Division of Neuroscience, Graduate School of Medicine, the University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan. Abstract We investigated whether the pulsed high frequency electromagnetic field (EMF) emitted by a mobile phone has short term effects on the human motor cortex. We measured motor evoked potentials (MEPs) elicited by single pulse transcranial magnetic stimulation (TMS), before and after mobile phone exposure (active and sham) in 10 normal volunteers. Three sites were stimulated (motor cortex (CTX), brainstem (BST) and spinal nerve (Sp)). The short interval intracortical inhibition (SICI) of the motor cortex reflecting GABAergic interneuronal function was also studied by paired pulse TMS method. MEPs to single pulse TMS were also recorded in two patients with multiple sclerosis showing temperature dependent neurological symptoms (hot bath effect). Neither MEPs to single pulse TMS nor the SICI was affected by 30 min of EMF exposure from mobile phones or sham exposure. In two MS patients, mobile phone exposure had no effect on any parameters of MEPs even though conduction block occurred at the corticospinal tracts after taking a bath. As far as available methods are concerned, we did not detect any short-term effects of 30 min mobile phone exposure on the human motor cortical output neurons or interneurons even though we can not exclude the possibility that we failed to detect some mild effects due to a small sample size in the present study. This is the first study of MEPs after electromagnetic exposure from a mobile phone in neurological patients. Bioelectromagnetics This kind of research is in a sense dubious - here one has to look for the long term effects (power of the emitter is less than 1W). Think of the microwave, oven, that is. It cooks the food because the frequency of radiation corresponds to a vibrational level of a H2O molecule, so the chain of events goes like radiation -> excitation of H20 -> relaxation to kinetic energy (=increase in temperature). Problem with mobile phones is that nobody knows really if there is a molecule in human body which has a chemical bond that resonates with the frequency at which the mobile phones work (~ 5GHz). For that reason (that is, until we have more conclusive data) it is really good idea to keep your cell phone away from biochemically rich organs (in the sense of number of different substances passing through), e.g., liver (any glands), lymph nodes, reproductive organs, head. Jane > Effects of high frequency electromagnetic field (EMF) emitted by > mobile phones on the human motor cortex [quoted text clipped - 33 lines] > exposure from a mobile phone in neurological patients. > Bioelectromagnetics Must be true, as evidenced by seeing those idiots incapable of even purchasing groceries without a cell phone jammed into their ear. Harry C. p.s., Same jerks who give you a dirty look when you look at them believing that they are speaking to you. I so agree. most of the effects of cellphones -- knowing of no structures in the body that could act as antennae for RF -- are sociological, as in "being tethered to the boss at all times with a GPS, as any phone already is." > p.s., Same jerks who give you a dirty look when you look at them > believing that they are speaking to you. thus: you probably believe that "capitalism" is the same as British liberal "free trade" a la Smith'n'Marx. anyway, the supranational corporations have largely moved all of industry out of here, a huge part of our rapidly- declining CO2-bootprint ... "Daddy, why is every thing made in China, like my boots?" in spite of the Cheeny Administration, the USA is still the only truly republican system (NB: I recently learned from a Castroite, that Cuba uses a parliamentary system, which is easily "no-confidenced" by the CEO, as in Blair's Cool Brittania: the PM is not the head of state, though !-) > Failure to do so will force the imposition of trade sanctions and oil > export embargo's on the KKKorrupt AmeriKKKan state. thus: possibly, the salesman's dollar/time problem has yet to be asked in a fungible manner -- a-hem. now, since the four-color mapping theorem has historically been approached as the (dual) graphing, owing to the old ink-minimization solution, maybe that's what it really is related-to; eh? > however i dont want to start a debate about perpetuum mobile since it's off-topic. thus: of course, Strangelove was a composite, but you have to get into the real spirit of the matter -- starts with an S, has two syllables -- to settle upon Szilard. now, since I actually only saw tiny fragments of Sagan's "Weaponeers" series on PBS, long ago, this is really based on an article-or-three from the Larouchiacs; just don't assume that it's wrong, any more than Sagan's idolizing take is not even wrong! as for Teller, it is probably so in the minds of the artistes who made the movie, just as MacArthur is universally trashed re Korea, in spite of the facts and, probably, because he would never have allowed the nuking of Hiroshima or Nagasaki, if he had been asked.... more things that only Larouchies seem to have even heard about. > On Szilard? I think not. Szilard was > passionately against the idea of atomic weapons > from day one, and he cajoled Einstein > Dr. Strangelove is an amalgam > of individuals like Edward Teller, > Herman Kahn and maybe a few others - > all closely connected to RAND. thus: Androcles may be a lard-a.s cyberjerk, but the digest in Wired leaves so many simple questions out, in reply to the assumedly-required infinities of this finite Universe ideal, you have to wonder. that is, even if you believe in "black holes of the Standard Model." Tipler puts everything into the heretofore visible part of Universe, like Einstein, Bucky et al, and the assumption that the redshift is Dopplerian, a la the belief in a Big Bang cosmogeny. as well, he assumes that the problem of decoherence in quantum computing can ever be overcome; I mean, lots of technical schemes & specs have been designed for such QC, but has decoherence really ever been fundamentally addressed (other than a big, fat, "it's just impossible to do this"), or sooner? > Frank J. Tipler, "From 2100 to the End of Time," Wired. http://geocities.com/theophysics/tipler-from-2100-to-the-end-of-time.... 964.http://math.tulane.edu/~tipler/theoryofeverything.pdf > DeWitt, among others. But because > these physicists were looking [quoted text clipped - 6 lines] > they didn't realize that > this proper theory of quantum gravity is thus: origami is the n'est-plus ultra of numbertheory, using the Pierpont primes.... you only have to know how to make paper, or pay for it. thus: so, it may be simple to see that the productivity of Fermat was not only due to his establishing numbertheorie as a science, but to some fundamental method. I'm sure, Wiles's collegiate advisors, at least, would have made this deduction, by the time that he started on his "secret basement lab," in the mid-seventies, since the historiography would have been available to them. to be really cynical, let's say, they were the ones to promote "le derniere theorem" misdirection. or, was it *derriere* ?? thus: the operating system of chess, is the systematization of all of the possible games that can end in a draw, or just those that have been recorded in games between grandmasters?... plus, games where the first player gets one or n extra moves, such that he'll almost always win?... fine, at least, it seems somewhat testable; now, put it into a shakespearean play (that is to say, English!) personally, I'd guess that any "2D" analysis is doomed to failure, not including time as a dimension -- bogus, undeadminkowsispeak! thus: anyway, it seemed that the OP did not quite "get" _Laws of Form_, itself, before diving into the alleged 4CT proof. well, in the very beginning, there's a reference to an endnote that clearly shows the relation to first-order boolean logic and, since that is really the same as arithmetic, you should be able to configure it. thus: erratum: the Swedish Bank Prize for Economics is not a Nobel Prize, as you might discern from the roster of freaks of british liberal free trade and Chicago U. alumni, like Milton Friedman, author of Schulz's and Sir Henry of Kiss.a.s.'s Chile experiment. so, some bankers really are Jewish! as for Al's Nobel, he should really have gotten it for acting, like a shill for Occidental Petroleum, which made his (and Al, Sr.'s) carreer.... oh, wait; he'd already gotten that! > No they aren't. They are selected > by the Swedish Academy of Science, and the > Norwegian Parliament. The claim that these are 60% Jewish thus: I looked, again, at monsieur H's "effect" page, and was rather nonplussed by the jabber about zero-point energy, casamir effect etc. any way, "effects happen," whether or not H. can explain them, which he seems unable to do, or was that you?... what ever experimental results he has, they hardly disprove the effect of a 757-model missile; do they? thus: can you give a precis of those pages, like, in words?... as for the idea of a missile, whether or not carrying a 3d movie, isn't that what a 757 diving at 500mph, full of fuel, is?... I mean, movies are *extra*, nowadays.... why is any more energy needed for an uncontrolled demo, since it would take much less for a correspodingly controlled job a la Prez Trickier Dick? > My current working-hypothesis is that a missile, > carrying a hologramme crashed into the tower. > I am now sure that *no* 767 jumbo crashed into any tower. thus: not sure about the whole chronology, but Nahin said that the n=3 proof was never found, as typical a la Fermat, but, then, blandly assumes that it was a different proof from the *mirabile dictu* one from the margin -- that's silly; eh?... now, F. put the whole "infinite decent" proof for n=4 in the blank endpapers of his _Bachet's Diophantus_, then presumably issued the challenge for n=3. a long time, later, Sophie Germaine proved the conjecture for all prime exponents of the form, 2p - 1, where p is also prime, pretty much ending (or, at least, bookending) any case-by-case proofs for further n. >without being paid-off by Oscar and Noby, c) ... so, >what was the reason for them? --Dick Cheeny, National Treasure: Run, Trickier Dick -- Run for Indy superVeep!
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