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No effect on cognitive function from daily mobile phone use.

Alain Besset1, Fabrice Espa, Yves Dauvilliers

  • 1Institut National de la Santé et de la Recherche Médicale, E 0361 Montpellier, France. besset@montp.inserm.fr

Bioelectromagnetics
|January 27, 2005
PubMed
Summary
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Daily mobile phone (MP) use, emitting electromagnetic fields (EMF), showed no impact on cognitive functions like memory or attention. This study found no adverse effects on brain function after regular MP exposure.

Area of Science:

  • Neuroscience
  • Environmental Health
  • Public Health

Background:

  • Mobile phone (MP) usage is widespread, raising concerns about potential health effects from electromagnetic fields (EMF) exposure.
  • Previous research primarily focused on acute MP exposure's impact on psychomotor performance, leaving cognitive functions less explored.

Purpose of the Study:

  • To investigate the effects of daily exposure to GSM 900 type mobile phone electromagnetic fields on human cognitive function.
  • To assess potential impacts on information processing, attention, memory, and executive functions.

Main Methods:

  • A 45-day double-blind study involving 55 participants (27 male, 28 female) matched for age, gender, and IQ.
  • Participants were divided into two groups: one exposed to an active mobile phone and a control group with a switched-off phone.

Related Experiment Videos

  • Cognitive function was assessed using a 22-task neuropsychological battery across baseline, exposure, and recovery periods, with daily exposure of 2 hours/day, 5 days/week.

    • Main Results:

    • No statistically significant differences were observed in cognitive functions between the group exposed to mobile phone EMF and the control group.
    • Performance in information processing, attention capacity, memory function, and executive function remained unaffected throughout the study periods.

    Conclusions:

    • Daily exposure to mobile phone electromagnetic fields, under the conditions studied, does not appear to negatively impact cognitive function after a 13-hour rest period.
    • Further research may be warranted to explore long-term effects or different exposure scenarios.