Bornhausen M, Scheingraber
The objective of this study was to determine if exposing pregnant rats
to RF fields during pregnancy affected the behaviour of there offspring
at 3 months of age. Twelve rats were exposed continuously from days 1
to 20 of pregnancy to a low-level (0.1 mW/cm²) 900 MHz, 217 Hz pulse
modulated EMF. This is similar to the highest legal exposure to the radiation
of base antennas of the GSM digital cell-phone technology. The whole body
average SAR ranged between 17.5 and 75 mW/kg. Another group of 12 rats
was sham-exposed. Four pups (two of each sex) were selected from each
litter for testing, which took place at 11-12 weeks of age. The food-reinforced
lever-pressing activity and the inter-response intervals between consecutive
lever presses were compared between exposed and sham-exposed animals.
Analyses showed that exposure in utero to the GSM field did not induce
any measurable cognitive deficits. The authors state that similar experiments
should be done at substantially higher power densities.