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Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.

Brain & Nervous System

Effects of thirty-minute mobile phone exposure on saccades

No Effects Found

Terao Y, Okano T, Furubayashi T, Yugeta A, Inomata-Terada S, Ugawa Y · 2007

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Thirty minutes of mobile phone exposure at typical SAR levels showed no immediate effects on eye movement control in healthy adults.

Plain English Summary

Summary written for general audiences

Researchers tested whether 30 minutes of mobile phone exposure affects eye movement control (saccades) in 10 healthy adults. They measured various types of rapid eye movements before and after exposure to 800 MHz radiation at 0.054 W/kg SAR. The study found no significant changes in eye movement performance, suggesting short-term mobile phone use doesn't impair this aspect of brain function.

Why This Matters

This study provides reassuring evidence that brief mobile phone exposure doesn't immediately disrupt the brain circuits controlling eye movements. The SAR level of 0.054 W/kg is well below current safety limits and represents typical exposure during phone calls. However, we should interpret these negative findings carefully. The study examined only 10 people for just 30 minutes of exposure, which limits our ability to detect subtle effects or longer-term impacts. Eye movement control represents just one narrow aspect of brain function, and normal performance on these tasks doesn't rule out other neurological effects from EMF exposure. The reality is that this single study, while methodologically sound, can't answer broader questions about mobile phone safety or cumulative exposure effects.

Exposure Details

SAR
0.054 W/kg
Source/Device
Mobile Phone 800 MHz
Exposure Duration
30 min

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 0.054 W/kgExtreme Concern - 0.1 W/kgFCC Limit - 1.6 W/kgEffects observed in the Severe Concern range (Building Biology)FCC limit is 30 times higher than this level
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 800 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 800 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Study Details

To investigate whether exposure to pulsed high-frequency electromagnetic field (pulsed EMF) emitted by a mobile phone has short-term effects on saccade performances.

A double blind, counterbalanced crossover design was employed. In 10 normal subjects, we studied the...

With the exception of VGS and MGS latencies, the parameters of VGS, GAP and MGS tasks were unchanged...

Thirty minutes of mobile phone exposure has no significant short-term effect on saccade performances.

Cite This Study
Terao Y, Okano T, Furubayashi T, Yugeta A, Inomata-Terada S, Ugawa Y (2007). Effects of thirty-minute mobile phone exposure on saccades Clin Neurophysiol. 118(7):1545-1556, 2007.
Show BibTeX
@article{y_2007_effects_of_thirtyminute_mobile_2811,
  author = {Terao Y and Okano T and Furubayashi T and Yugeta A and Inomata-Terada S and Ugawa Y},
  title = {Effects of thirty-minute mobile phone exposure on saccades},
  year = {2007},
  
  url = {https://www.sciencedirect.com/science/article/abs/pii/S1388245707001034},
}

Quick Questions About This Study

No, a 2007 study found that 30 minutes of 800 MHz mobile phone exposure at 0.054 W/kg SAR did not significantly affect saccadic eye movements in healthy adults. Eye movement performance remained unchanged after radiation exposure compared to sham exposure.
Research shows that 30 minutes of mobile phone exposure does not impair rapid eye movements called saccades. The study tested 10 healthy adults and found no significant changes in eye movement control after 800 MHz radiation exposure.
The 2007 study by Terao and colleagues tested mobile phone radiation at 0.054 W/kg SAR using 800 MHz frequency. This specific absorption rate level showed no significant effects on saccadic eye movement performance in participants.
Based on research testing 30-minute exposures to 800 MHz radiation, mobile phone use does not affect eye coordination in the short term. The study found no significant changes in various types of rapid eye movements after exposure.
No, saccadic latencies do not change differently after real versus sham 800 MHz mobile phone exposure. While some latency variations occurred during testing, they were similar for both real and fake radiation exposure conditions.