Study type: Medical/biological study (experimental study)

The effect of the duration of exposure to the electromagnetic field emitted by mobile phones on human attention. med./bio.

Published in: Neuroreport 2003; 14 (10): 1361-1364

Aim of study (acc. to author)

To examine the effect of electromagnetic fields emitted by mobile phones on human attention by investigating the relationship between the duration of irradiation and the effect of electromagnetic field.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 1.9 GHz
Modulation type: pulsed
Exposure duration: continuous for 25 min
-

Exposure 1

Main characteristics
Frequency 1.9 GHz
Type
Exposure duration continuous for 25 min
Modulation
Modulation type pulsed
Exposure setup
Exposure source
Setup Mobile phone was mounted on the subject's head. Mobile phone was oriented in the normal position for use with the earphone over the right ear of the subject.
Additional info Mobile phones were off with the control group throughout the session of 60 min.
Parameters

No parameters are specified for this exposure.

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • during exposure

Main outcome of study (acc. to author)

Subjects in the experimental group appear to become somewhat faster than subjects in the control group in responding to the SART after being exposed to the electromagnetic field. Yet, there were no significant differences in the number of correct responses on the SART, indicating that there was no observable change in the quality of performance of the subjects. The absence of significant difference on the scores on the TMT may suggest that an increased duration of irradiation may have a differential impact on different human attention functions, or it might relate to the possibility that the effect on the performance in the TMT tests might take longer times for it to be noticeable. The data seem to suggest that attention functions may be differentially enhanced with an increased duration of exposure to the electromagnetic field. Furthermore, this transient facilitation effect might be dose dependent.

Study character:

Study funded by

Comments on this article

Related articles