The suspicion is based on a test with mice that compared pregnant mice that were kept in close proximity to a muted cell phone with an active call for the time of the entire trial. A control group was exposed to a cell phone with no active calls during the test period. When they tested the brain electrical activity of adult mice that were exposed to radiation as fetuses, the scientists found these animals to be more hyperactive. They also determined that these mice had, in comparison to the control group with no radiation exposure, "reduced memory capacity." The pregnancy period of the mice was 19 days.
The study concluded that the behavioral differences were due to an effect on the development of neurons in the prefrontal cortex region of the brain.
"We have shown that behavioral problems in mice that resemble ADHD are caused by cell phone exposure in the womb," said Hugh Taylor, professor and chief of the Division of Reproductive Endocrinology and Infertility in the Department of Obstetrics, Gynecology & Reproductive Sciences, at Yale University. "The rise in behavioral disorders in human children may be in part due to fetal cellular telephone irradiation exposure."
According to Taylor, it is unclear how humans are affected by cellular radiation, but he suggested that limiting radiation to the fetus may be a good idea.