60 "sensitive" subjects participated who reported often getting headache-like symptoms within 20 minutes of using a GSMmobile phone and 60 "control" participants who did not report any such symptoms. Participants completed visual analogue scale measures after 5, 15, 30, and 50 minutes of exposure and 30 min after the end of each exposure.
Both testing rooms, which were lit by two table lamps, were not shielded against outside EMF.
Setup
A headband mounted standard GSM handset system was used for exposures with the antenna positioned slightly above and behind the left ear and within a few millimetres of the participant's scalp.
For sham exposure, a CWsignal was generated to ensure that the system heated up to the same degree as during the active exposures but was diverted to an internal load instead of being transmitted through the antenna; only minimal leakage of this signal occurred.
The data did not indicate that people with self reported sensitivity to mobile phone signals are able to detect such signals or that they react to them with increased symptom severity. As sham exposure was sufficient to trigger severe symptoms in some subjects, psychological factors may have an important role in causing this condition.
Verrender A et al.
(2018):
IEI-EMF provocation case studies: A novel approach to testing sensitive individuals
van Moorselaar I et al.
(2017):
Effects of personalised exposure on self-rated electromagnetic hypersensitivity and sensibility - A double-blind randomised controlled trial
Kjellqvist A et al.
(2016):
Psychological symptoms and health-related quality of life in idiopathic environmental intolerance attributed to electromagnetic fields
Nieto-Hernandez R et al.
(2011):
Can exposure to a terrestrial trunked radio (TETRA)-like signal cause symptoms? A randomised double-blind provocation study
Kaul G
(2009):
[Is there an ability to perceive or to be sensitive on?]
Nam KC et al.
(2009):
Hypersensitivity to RF fields emitted from CDMA cellular phones: a provocation study
Eltiti S et al.
(2009):
Short-term exposure to mobile phone base station signals does not affect cognitive functioning or physiological measures in individuals who report sensitivity to electromagnetic fields and controls
Nieto-Hernandez R et al.
(2008):
Can evidence change belief? Reported mobile phone sensitivity following individual feedback of an inability to discriminate active from sham signals
Kleinlogel H et al.
(2008):
Effects of weak mobile phone - electromagnetic fields (GSM, UMTS) on well-being and resting EEG
Cinel C et al.
(2008):
Exposure to mobile phone electromagnetic fields and subjective symptoms: a double-blind study
Hillert L et al.
(2008):
The effects of 884 MHz GSM wireless communication signals on headache and other symptoms: an experimental provocation study
Eltiti S et al.
(2007):
Does short-term exposure to mobile phone base station signals increase symptoms in individuals who report sensitivity to electromagnetic fields? A double-blind randomized provocation study
Heinrich S et al.
(2007):
[Electromagnetic fields of a UMTS mobile phone base station and possible effects on health - results from an experimental field study]
