Non-Ionizing Radiation
Conditions
Brief summary
To investigate possible effects of radio frequency electromagnetic fields on EEG activity during sleep and on Brain function during wake (EEG in the resting state condition, slow EEG potentials, auditory evoked potentials) and cognitive performance measures in test of selective attention, divided attention and working memory in healthy elderly males (60 - 80 years).
Detailed description
To investigate possible effects of radio frequency electromagnetic fields on EEG activity during sleep and on Brain function during wake (EEG in the resting state condition, slow EEG potentials, auditory evoked potentials) and cognitive performance measures in test of selective attention, divided attention and working memory in healthy elderly males (60 - 80 years). Subjects will be exposed with signals from mobile communication handheld devices for 7.5 h during the night and for the whole duration of the test session during the day. Exposures will be GSM (900 MHz), TETRA (400 MHz) and sham. Each subject is exposed with each exposure three times in addition to an adaptation/screening night and day to learn the test. The results have to be discussed in the context of possible health risks resulting from RF-EMF exposure.
Interventions
RADIATIONExposure with non-ionizing electromagnetic fields
In a cross-over design subjects will be exposed to sham (placebo), GSM 900 MHz (2W/kg) and TETRA (6W/kg)
Sponsors
Seibersdorf Labor GmbH
The Federal Office for Radiation Protection, Germany
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
MALE
Age
60 Years to 80 Years
Healthy volunteers
Yes
Inclusion criteria
* healthy male subjects (age 60 - 80 years) * right handedness * alpha EEG as resting state EEG * non-smokers
Exclusion criteria
* acute illness * severe neurological, psychiatric or internal disease * CNS active medication * sleep disorders * drug abuse
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| sleep EEG (power) | during exposure for 8 hours |
Secondary
| Measure | Time frame |
|---|---|
| resting state Waking EEG (power) | during exposure 4 hours |
Countries
Germany
Outcome results
None listed