The study was a replication with methodological improvements (multi-centre testing and a double-blind study design) to a previous study (publication 4728). A total of 64 subjects in two independent laboratories performed a short term memory task.
Distance between exposed object and exposure source
0.0337 m
Setup
The mobile phone was mounted on the left side of the subject's head in the normal position of use with an adjustable rubber head cap. The antenna was located over the left posteriortemporal lobe. The distance from the surface of the skull was measured in 12 randomly selected subjects, averaging 33.7 mm (SD 2.57 mm).
No statisticallysignificant differences in performance between the two laboratories were found. The authors could not replicate the previous results: the electromagnetic field had no effect on reaction times or on the accuracy of the subjects' answers. The inability to replicate previous results could have been caused by lack of actual electromagnetic field effects or the magnitude of effects being at the sensitivitythreshold of the test used.
Malek F et al.
(2015):
Effect of short-term mobile phone base station exposure on cognitive performance, body temperature, heart rate and blood pressure of Malaysians.
Schmid MR et al.
(2012):
Sleep EEG alterations: effects of different pulse-modulated radio frequency electromagnetic fields.
Vecchio F et al.
(2012):
Mobile phone emission modulates event-related desynchronization of alpha rhythms and cognitive-motor performance in healthy humans.
Ng TP et al.
(2012):
Long-term digital mobile phone use and cognitive decline in the elderly.
Sauter C et al.
(2011):
Effects of exposure to electromagnetic fields emitted by GSM 900 and WCDMA mobile phones on cognitive function in young male subjects.
Hareuveny R et al.
(2011):
Cognitive effects of cellular phones: A possible role of non-radiofrequency radiation factors.
Luria R et al.
(2009):
Cognitive effects of radiation emitted by cellular phones: the influence of exposure side and time.
Unterlechner M et al.
(2008):
No effect of an UMTS mobile phone-like electromagnetic field of 1.97 GHz on human attention and reaction time.
Cinel C et al.
(2008):
Does the use of mobile phones affect human short-term memory or attention?
Fritzer G et al.
(2007):
Effects of short- and long-term pulsed radiofrequency electromagnetic fields on night sleep and cognitive functions in healthy subjects.
Haarala C et al.
(2007):
Pulsed and continuous wave mobile phone exposure over left versus right hemisphere: effects on human cognitive function.
Regel SJ et al.
(2007):
Pulsed radio frequency radiation affects cognitive performance and the waking electroencephalogram.