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Brain & Nervous System

Does acute exposure to mobile phones affect human attention?

No Effects Found

Russo R, Fox E, Cinel C, Boldini A, Defeyter MA, Mirshekar-Syahkal D, Mehta A · 2006

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This study found no immediate cognitive impairment from mobile phone signals during brief exposure in laboratory conditions.

Plain English Summary

Summary written for general audiences

Researchers tested 168 people on attention and cognitive tasks while exposed to mobile phone signals (both GSM and continuous wave) versus fake signals. They found no significant differences in performance on reaction time, vigilance, or mental math tasks regardless of which type of signal participants were exposed to or which side of the head the phone was positioned on.

Why This Matters

This study represents one of the larger investigations into acute cognitive effects from mobile phone exposure, with 168 participants completing multiple attention-based tasks. The researchers tested both GSM signals (the type used in actual phones) and continuous wave signals, finding no measurable impact on cognitive performance. While this suggests that brief mobile phone exposure may not immediately impair basic cognitive functions like reaction time and attention, the study has important limitations. The exposure duration and power levels aren't specified, making it difficult to compare these findings to real-world phone use patterns. Additionally, cognitive effects research in this field shows mixed results, with some studies finding subtle changes in brain activity even when performance remains unchanged. What this means for you is that while your phone likely isn't causing immediate attention problems during calls, the absence of acute effects doesn't rule out longer-term impacts from chronic exposure.

Study Details

In our study we tested a large sample of volunteers (168) using a series of cognitive tasks apparently sensitive to RF exposure (a simple reaction task, a vigilance task, and a subtraction task).

Participants performed those tasks twice, in two different sessions. In one session they were expos...

No significant effects of RF exposure on performance for either GSM or CW were found, independent of...

Cite This Study
Russo R, Fox E, Cinel C, Boldini A, Defeyter MA, Mirshekar-Syahkal D, Mehta A (2006). Does acute exposure to mobile phones affect human attention? Bioelectromagnetics.27(3):215-220, 2006.
Show BibTeX
@article{r_2006_does_acute_exposure_to_3342,
  author = {Russo R and Fox E and Cinel C and Boldini A and Defeyter MA and Mirshekar-Syahkal D and Mehta A},
  title = {Does acute exposure to mobile phones affect human attention?},
  year = {2006},
  
  url = {http://repository.essex.ac.uk/13086/},
}

Quick Questions About This Study

A 2006 study with 168 participants found no significant differences in attention performance whether mobile phones were positioned on the left or right side of the head during cognitive tasks.
Research testing 168 people found no significant effects of GSM mobile phone signals on reaction time, vigilance, or mental math performance compared to fake signal exposure.
A controlled study found no significant differences in attention and cognitive task performance between GSM signals, continuous wave signals, and fake signal exposure in 168 participants.
Research with 168 participants showed no significant impact of mobile phone signal exposure on vigilance task performance, regardless of signal type or phone positioning.
A 2006 study found no significant effects of acute mobile phone signal exposure on mental math task performance in 168 people tested under controlled conditions.