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Brain & Nervous System

No effect on cognitive function from daily mobile phone use.

No Effects Found

Besset A, Espa F, Dauvilliers Y, Billiard M, de Seze R. · 2005

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Daily mobile phone use for 2 hours showed no cognitive impairment effects when tested after a 13-hour rest period.

Plain English Summary

Summary written for general audiences

French researchers tested whether daily mobile phone use affects cognitive function by having 55 people use phones for 2 hours a day, 5 days a week for nearly a month. They found no measurable effects on memory, attention, information processing, or executive function compared to a control group using inactive phones. This suggests that typical daily phone use doesn't immediately impair cognitive performance, at least when tested after a 13-hour rest period.

Study Details

This study investigated the effects of daily exposure to GSM 900 type MP on cognitive function.

Fifty-five subjects (27 male and 28 female) were divided into two groups: a group with MP switched o...

Our results indicate that daily MP use has no effect on cognitive function after a 13-h rest period.

Cite This Study
Besset A, Espa F, Dauvilliers Y, Billiard M, de Seze R. (2005). No effect on cognitive function from daily mobile phone use. Bioelectromagnetics. 26(2):102-108, 2005.
Show BibTeX
@article{a_2005_no_effect_on_cognitive_2953,
  author = {Besset A and Espa F and Dauvilliers Y and Billiard M and de Seze R.},
  title = {No effect on cognitive function from daily mobile phone use.},
  year = {2005},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/15672372/},
}
PubMed: 15672372

Cited By (85 papers)

View all 85 citing papers on Semantic Scholar

Quick Questions About This Study

A 2005 French study found no cognitive effects from using phones 2 hours daily for nearly a month. Fifty-five participants showed no changes in memory, attention, or information processing compared to controls using inactive phones after 13-hour rest periods.
Research suggests daily 2-hour phone use for weeks doesn't impair cognitive function when tested after adequate rest. A controlled study found no measurable effects on executive function, memory, or attention from this level of regular mobile phone exposure.
Yes, a 2005 French study by Besset and colleagues found daily mobile phone use safe for cognitive performance. Participants using phones 2 hours daily for 5 days weekly showed no brain function impairment compared to control groups after rest periods.
A month-long study found no memory damage from regular phone use. Fifty-five people using phones 2 hours daily, 5 days weekly showed no memory, attention, or information processing changes compared to inactive phone users after 13-hour breaks.
Research indicates 13-hour rest periods allow full cognitive recovery between phone sessions. A study testing 2-hour daily phone use found no lingering effects on brain function when cognitive tests occurred after these extended rest intervals.