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Movvahedi MM et al, (May 2014) Does exposure to GSM 900 MHz mobile phone radiation affect short-term memory of elementary school students?, J Pediatr Neurosci

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Authors not listed · 2014

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Iranian study found 10-minute cell phone exposure improved elementary students' short-term memory performance.

Plain English Summary

Summary written for general audiences

Researchers exposed 60 elementary school children (ages 8-10) to 10 minutes of GSM 900 MHz cell phone radiation and tested their memory and reaction times. The study found that phone radiation actually improved children's short-term memory performance compared to sham exposure, while reaction times remained unchanged.

Why This Matters

This Iranian study presents an intriguing finding that challenges common assumptions about EMF effects on children's cognitive function. While the researchers report improved short-term memory after GSM 900 MHz exposure, we must interpret these results cautiously. The science demonstrates that EMF effects on developing brains are complex and not always negative in acute settings. However, what this means for you as a parent is that short-term cognitive enhancement doesn't necessarily indicate safety. The reality is that children's developing nervous systems may respond differently to EMF than adults, and acute effects don't predict long-term consequences. Enhanced performance could reflect stress responses or altered brain activity patterns that may not be beneficial over time.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 900 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 900 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2014). Movvahedi MM et al, (May 2014) Does exposure to GSM 900 MHz mobile phone radiation affect short-term memory of elementary school students?, J Pediatr Neurosci.
Show BibTeX
@article{movvahedi_mm_et_al_may_2014_does_exposure_to_gsm_900_mhz_mobile_phone_radiation_affect_short_term_memory_of_elementary_school_students_j_pediatr_neurosci_ce650,
  author = {Unknown},
  title = {Movvahedi MM et al, (May 2014) Does exposure to GSM 900 MHz mobile phone radiation affect short-term memory of elementary school students?, J Pediatr Neurosci},
  year = {2014},
  doi = {10.4103/1817-1745.139300},
  
}
DOI: 10.4103/1817-1745.139300PubMed: 25250064

Quick Questions About This Study

This study found that 10 minutes of GSM 900 MHz exposure improved short-term memory scores in 60 elementary school children aged 8-10. However, improved acute performance doesn't necessarily indicate long-term safety or benefit for developing brains.
Children were exposed to active GSM 900 MHz cell phone radiation for exactly 10 minutes, followed by cognitive testing. This exposure duration was compared against 10 minutes of sham exposure with phones switched off.
No significant change in visual reaction time was found. Mean reaction times were 249.0 ms after real phone exposure versus 252.9 ms after sham exposure, showing no statistically significant difference between conditions.
The study included 60 elementary school students ranging from 8 to 10 years old from a public school in Shiraz, Iran. This age group represents early elementary school children with developing nervous systems.
Short-term memory scores increased from 1003.84 during sham exposure to 1062.60 after real phone radiation exposure, representing approximately a 6% improvement that reached statistical significance (P = 0.030).