EMF-Portal | Does acute exposure to the electromagnetic field emitted by a mobile phone influence visual evoked potentials? A pilot study

Does acute exposure to the electromagnetic field emitted by a mobile phone influence visual evoked potentials? A pilot study med./bio.

By: Urban P, Lukas E, Roth Z

Published in: Cent Eur J Public Health 1998; 6 (4): 288-290

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Aim of study (acc. to author)

To search for a potential negative influence on the central nervous system (CNS) of the electromagnetic field emitted by a mobile phone, the authors performed a study of the influence of a single short acute exposure to a GSM mobile phone. Visual evoked potentials examination as an electrophysiological marker of CNS dysfunction was used.

Endpoint

Exposure

mobile communications
GSM

Exposure	Parameters
Exposure 1: 900 MHz Modulation type: pulsed Exposure duration: continuous for 5 min	power: 1.5 W unspecified

Exposure 1

Main characteristics

Frequency	900 MHz
Type	electromagnetic field
Exposure duration	continuous for 5 min

Modulation

Modulation type	pulsed

Exposure setup

Exposure source	cellular phone
Setup	The mobile phone with the antenna pushed in was held in the right hand by the test person while talking into it.
Additional info	Each session consisted of 4 VEP (visual evoked potentials) tests in a row with 5 min of exposure between the second and the third test. Each subject was examined twice with or without exposure (randomised) at an interval of about two weeks. The test person was aware whether the mobile phone was on or off.

Parameters

Measurand	Value	Type	Method	Mass	Remarks
power	1.5 W	unspecified	unspecified	-	-

Additional parameter details

The value indicated was the approx. output power of the device when the antenna was extended. ("When the antenna was pushed in, the output was a little bit lower.")

Exposed system:

human
partial body: head

Methods Endpoint/measurement parameters/methodology

Investigated system:

investigation on living organism

Investigated organ system:

brain/CNS

Time of investigation:

after exposure

Main outcome of study (acc. to author)

Study funded by

European Cooperation in the Field of Scientific and Technical Research (COST)

Interní grantová agentura (IGA; Internal Grant Agency at the Czech Ministry of Health) MZ, Czech Republic

Hidisoglu E et al. (2016): 2100-MHz electromagnetic fields have different effects on visual evoked potentials and oxidant/antioxidant status depending on exposure duration

Inomata-Terada S et al. (2007): Effects of high frequency electromagnetic field (EMF) emitted by mobile phones on the human motor cortex

Irlenbusch L et al. (2007): Influence of a 902.4 MHz GSM signal on the human visual system: Investigation of the discrimination threshold

Ferreri F et al. (2006): Mobile phone emissions and human brain excitability

Maby E et al. (2006): Scalp localization of human auditory cortical activity modified by GSM electromagnetic fields

Oysu C et al. (2005): Effects of the acute exposure to the electromagnetic field of mobile phones on human auditory brainstem responses

Roschke J et al. (1997): No short-term effects of digital mobile radio telephone on the awake human electroencephalogram