Effects of the acute exposure to the electromagnetic field of mobile phones on human auditory brainstem responses

  • Cagatay Oysu
  • Murat Topak
  • Oner Celik
  • H. Baki Yilmaz
  • A. Asli Sahin


The purpose of this study was to evaluate the short-term effects of the electromagnetic fields (EMF) of mobile phones on human auditory brainstem responses. This prospective study of healthy adults evaluated the influence of EMF. Eighteen healthy adult volunteers participated in this study. Mobile telephones emitting signals in the region of 900 MHz and with the highest SAR value of 0.82 W/kg were positioned in direct contact to the right ear, which was exposed to the phone signal for 15 min before and after ABR testing with click stimuli of 60 and 80 dB nHL intensities. The latencies of the waves and interwave latencies were measured on screen by an experienced audiologist. The differences of the mean latencies of waves I, III and IV were not significant in initial and post-exposure ABR measurements at both 60 and 80 dB nHL stimulus levels ( P >0.05). Similarly, differences of the mean interwave intervals I-III, I-V and III-V remained insignificant at the initial and postexposure ABR measurements at stimulus levels of both 60 and 80 dB nHL ( P >0.05). Acute exposure to the EMF of mobile phones does not cause perturbations in ABR latencies. However, these negative results should not encourage excessive mobile communication, because minor biological and neurophysiological influences may not be detectable by the current technology.


Cellular phone radiation Auditory brainstem responses Electromagnetic field Biological effects 


  1. 1.
    Gandhi OP, Lazzi G, Furse CM (1996) Electromagnetic absorption in the human head and neck for mobile telephones at 835 and 1,900 MHz. IEEE transactions on microwave theory and techniques 44:1884–1897Google Scholar
  2. 2.
    Schonborn F, Burkhardt M, Kuster N (1998) Differences in energy absorption between heads of adults and children in the near field of sources. Health Phys 74:160–168Google Scholar
  3. 3.
    Roschke J, Mann K (1997) No short-term effects of digital mobile radio telephone on the awake human electroencephalogram. Bioelectromagnetics 18:172–176Google Scholar
  4. 4.
    Wagner P, Roschke J, Mann K, Hiller W, Frank C (1998) Human sleep under the influence of pulsed radiofrequency electromagnetic fields: a polysomnographic study using standardized conditions. Bioelectromagnetics 19:199–202Google Scholar
  5. 5.
    Krause CM, Sillanmaki L, Koivisto M, Haggqvist A, Saarela C, Revonsuo A, Laine M, Hamalainen H (2000) Effects of electromagnetic fields emitted by cellular phones on the electroencephalogram during a visual working memory task. Int J Radiat Biol 76:1659–1667Google Scholar
  6. 6.
    Reiser H, Dimpfel W, Schober F (1995) The influence of electromagnetic fields on human brain activity. Eur J Med Res 1:27–32Google Scholar
  7. 7.
    von Klitzing L (1995) Low-frequency pulsed electromagnetic fields influence EEG of man. Phys Med 11:77–80Google Scholar
  8. 8.
    Krause CM, Sillanmaki L, Koivisto M, Haggqvist A, Saarela C, Revonsuo A, Laine M, Hamalainen H (2000) Effects of electromagnetic field emitted by cellular phones on the EEG during a memory task. Neuroreport 11:761–764Google Scholar
  9. 9.
    Seaman RL, Lebovitz RM (1989) Thresholds of cat cochlear nucleus neurons to microwave pulses. Bioelectromagnetics 10:147–160Google Scholar
  10. 10.
    Chou CK, Guy AW (1979) Microwave induced auditory responses in guinea pigs: relationship of threshold and microwave-pulse duration. Radio Sci 14:193–197Google Scholar
  11. 11.
    Chou CK, Guy AW, Galambos R (1982) Auditory perception of radiofrequency electromagnetic fields. J Acoust Soc Am 71:1321–1334Google Scholar
  12. 12.
    Taylor EM, Ashleman BT (1974) Analysis of central nervous system involvement in the microwave auditory effect. Brain Res 74:201–208Google Scholar
  13. 13.
    Chou C, Galambos R, Guy AW, Lovely RH (1975) Cochlear microphonics generated by microwave pulses. J Microw Power 10:361–367Google Scholar
  14. 14.
    Chou CK, Yee KC, Guy AW (1985) Auditory response in rats exposed to 2,450 MHz electromagnetic fields in a circularly polarized waveguide. Bioelectromagnetics 6:323–326Google Scholar
  15. 15.
    Ozturan O, Erdem T, Miman MC, Kalcioglu MT, Oncel S (2002) Effects of the electromagnetic field of mobile telephones on hearing. Acta Otolaryngol 122:289–293Google Scholar
  16. 16.
    Harma M (2000) Electric hypersensitivity and neurophysiological effects of cellular phones—facts or needless anxiety? Scand J Work Environ Health 26:85–86Google Scholar
  17. 17.
    Van Leeuwen GM, Lagendijk JJ, Van Leersum BJ, Zwamborn AP, Hornsleth SN, Kotte AN (1999) Calculation of change in brain temperatures due to exposure to a mobile phone. Phys Med Biol 44:2367–2379Google Scholar
  18. 18.
    UNEP/WHO/IRPA. Electromagnetic fields (300 Hz to 300 GHz): Environmental Health Criteria 137. World Health Organization, GenevaGoogle Scholar
  19. 19.
    Fritze K, Sommer C, Schmitz B, Mies G, Hossmann KA, Kiessling M, Wiessner C (1997) Effect of global system for mobile communication (GSM) microwave exposure on blood-brain barrier permeability in rat. Acta Neuropathol (Berl) 94:465–470Google Scholar
  20. 20.
    Mann K, Roschke J (1996) Effects of pulsed high-frequency electromagnetic fields on human sleep. Neuropsychobiology 33:41–47Google Scholar
  21. 21.
    Braune S, Wrocklage C, Raczek J, Gailus T, Lucking CH (1998) Resting blood pressure increase during exposure to a radio-frequency electromagnetic field. Lancet 351(9119):1857–1858Google Scholar
  22. 22.
    Lai H, Singh NP (1996) Single- and double-strand DNA breaks in rat brain cells after acute exposure to radiofrequency electromagnetic radiation. Int J Radiat Biol 69:513–521Google Scholar
  23. 23.
    Sanders AP, Joines WT (1984) The effects of hyperthermia and hyperthermia plus microwaves on rat brain energy metabolism. Bioelectromagnetics 5:63–70Google Scholar
  24. 24.
    Baranski S (1972) Histological and histochemical effect of microwave irradiation on the central nervous system of rabbits and guinea pigs. Am J Phys Med 51:182–191Google Scholar
  25. 25.
    Dutta SK, Das K, Ghosh B, Blackman CF (1992) Dose dependence of acetylcholinesterase activity in neuroblastoma cells exposed to modulated radio-frequency electromagnetic radiation. Bioelectromagnetics 13:317–322Google Scholar
  26. 26.
    Lai H, Carino MA, Horita A, Guy AW (1992) Opioid receptor subtypes that mediate a microwave-induced decrease in central cholinergic activity in the rat. Bioelectromagnetics 13:237–246Google Scholar
  27. 27.
    Thuroczy G, Kubinyi G, Bodo M, Bakos J, Szabo LD (1994) Simultaneous response of brain electrical activity (EEG) and cerebral circulation (REG) to microwave exposure in rats. Rev Environ Health 10:135–148Google Scholar
  28. 28.
    Hermann DM, Hossmann KA (1997) Neurological effects of microwave exposure related to mobile communication. J Neurol Sci 152:1–14Google Scholar
  29. 29.
    Freude G, Ullsperger P, Eggert S, Ruppe I (1998) Effects of microwaves emitted by cellular phones on human slow brain potentials. Bioelectromagnetics 19:384–387Google Scholar
  30. 30.
    Freude G, Ullsperger P, Eggert S, Ruppe I (2000) Microwaves emitted by cellular telephones affect human slow brain potentials. Eur J Appl Physiol 81:18–27Google Scholar
  31. 31.
    Moller AR, Jannetta PJ (1983) Interpretation of brainstem auditory evoked potentials: results from intracranial recordings in humans. Scand Audiol 12:125–133Google Scholar
  32. 32.
    International Commission on Non-Ionizing Radiation Protection (1998) Guidelines for limiting exposure to time-varying electric, magnetic and electromagnetic fields (up to 300 GHz). Health Phys 74:494–522PubMedGoogle Scholar

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • Cagatay Oysu
    • 1
    • 3
  • Murat Topak
    • 2
  • Oner Celik
    • 2
  • H. Baki Yilmaz
    • 2
  • A. Asli Sahin
    • 2
  1. 1.Department of OtolaryngologyHaydarpasa Numune State HospitalIstanbulTurkey
  2. 2.Department of OtolaryngologyTaksim State HospitalIstanbulTurkey
  3. 3.IstanbulTurkey

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