Study type: Medical/biological study (observational study)

Involuntary human hand movements due to FM radio waves in a moving van. med./bio.

Published in: Acta Physiol Hung 2011; 98 (2): 157-164

Aim of study (acc. to author)

To study if humans sens 100-200 MHz electromagnetic fields commonly used for radio and TV program transmission.

Background/further details

The subjects sat in a small van driven back and forth along a 2 km segment of a public straight road (in Eastern Finland) about 30 km distance from the transmission tower. Simultaneously, the radio signalling was recorded.
12 test runs were performed (six towards west and six towards east). Four electrosensitive subjects were tested at one time.



Exposure Parameters
Exposure 1: 100 MHz
Exposure duration: continuous

Exposure 1

Main characteristics
Frequency 100 MHz
Exposure duration continuous
Exposure setup
Exposure source
Distance between exposed object and exposure source 30 km
Setup one person acting as antenna, three persons as test subjects
Measurand Value Type Method Mass Remarks
electric field strength 1 mV/m minimum measured - -
electric field strength 10 mV/m maximum measured - -
magnetic flux density 51.2 µT minimum measured - in the test area
magnetic flux density 51.8 µT maximum measured - in the test area
magnetic flux density 50.8 µT - measured - in the center of the geomagnetic anomaly area

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Investigated organ system:
Time of investigation:
  • during exposure

Main outcome of study (acc. to author)

Involuntary hand movements of the subjects correlated with the electromagnetic field, i.e. with the FM radio wave intensity measured. The subjects reacted also on the place of a geomagnetic anomaly crossing the road, which was found on the basis of these recordings and confirmed by the public geological maps of the area.
The authors conclude, that radiofrequency exposure seems to affect the human hand reflexes of electrosensitive persons in a moving van along a normal public road which may have significance in traffic safety.

Study character:

Study funded by

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