To study the effect of acute exposure to radiofrequency electromagnetic fields generated by mobile phones on an auditory threshold task.
The study replicates a previous study (publication 10779) with much larger sample of participants (168 participants).
Subjects had to decide on which side the first of two succeeding auditory stimuli was presented. Inter-stimulus-intervals were gradually reduced as long as no mistakes occured; wrong responses led to expansion of the intervals.
Half of the participants were exposed to a CW signal or to a GSM signal, respectively.
| Frequency | 888 MHz |
|---|---|
| Type | |
| Exposure duration | continuous for 40 min |
| Exposure source | |
|---|---|
| Setup | The mobile phone was positioned on the left or right ear for half of the participants, respectively. |
| Sham exposure | A sham exposure was conducted. |
| Additional info | Participants were exposed or sham-exposed in two separate sessions. |
| Frequency | 888 MHz |
|---|---|
| Type | |
| Exposure duration | continuous for 40 min |
| Modulation type | CW |
|---|
| Exposure source |
|
|---|---|
| Sham exposure | A sham exposure was conducted. |
| Measurand | Value | Type | Method | Mass | Remarks |
|---|---|---|---|---|---|
| SAR | 1.4 W/kg | average over mass | measured | 10 g | ±30% |
No significant effect of radiofrequency electromagnetic field exposure was found suggesting that the acute exposure does not affect performance in the order threshold task.
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