Neurological effect of mobile phone, 2005

Epidemiological studies have shown a statistical link between mobile phone use and the occurrence of various symptoms. Aside from the discomfort due to heating on and around the ear is the headache symptom most often associated with cell phone use in a Norwegian-Swedish study.

Highlights:
In this study we wanted to investigate whether the RF fields from GSM phones had significance for headache and other symptoms and blood pressure and pulse rate. We wanted to conduct an experiment with a high probability of revealing a correlation, if it exists. Subjects who regularly had experienced headaches or discomfort in the head in close connection with mobile phone use, but not responded to other electrical equipment, were invited to a laboratory test where they learned that they were subjected to "mobile phone radiation" and only those who had similar symptoms they usually had the use of mobile phones were included. A total of 17 people participated in repeated attempts. We conducted a total of 75 tests with radiofrequency fields and 75 without. Instead of using a phone directly, we headed the RF signal from the phone to antennas mounted close your ears to the test person. In this way we achieved to expose a relatively large at around ørtet to increase the chance that a potential sensitive organ would be affected. The experiment was conducted double blind and other matters that could affect the results was checked.

Main findings:
Tests in which subjects were not exposed to the radiofrequency fields resulted in stronger symptoms than tests with field, but the differences were not statistically significant. There was no significant difference between the two exposure conditions in terms of type hopdine, page or localization ringing headaches. Similarly, we found that subjects were not able to detect when they were exposed and not, and we also found no significant effect on blood pressure or pulse rate. Our result agrees with the results of other similar studies. It is possible that the expectation headache may explain why the subjects had symptoms too without being exposed. Such noceboeffekt is a well documented mechanism to induce symptoms similar to the placebo effect makes a fresher. We assume that noceboeffekten also to some extent explain the symptoms that some people experience when they use mobile phone in everyday life.

NSD1261-1: D-form, diary.
NSD1261-2: E-form.
NSD1261-3: SPSS-B1.
NSD1261-4: SPSS-FG-analysis-00.