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Short-term memory in mice is affected by mobile phone radiation.

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Ntzouni MP, Stamatakis A, Stylianopoulou F, Margaritis LH · 2011

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Mobile phone radiation at 0.22 W/kg impaired short-term memory formation in mice, particularly during the critical memory consolidation phase.

Plain English Summary

Summary written for general audiences

Greek researchers exposed mice to mobile phone radiation at levels similar to what humans experience during phone calls (SAR 0.22 W/kg) and tested their ability to recognize objects they had seen before. The study found that chronic exposure for 17 days significantly impaired the mice's short-term memory, particularly during the critical period when memories are being consolidated and stored in the brain. This suggests that mobile phone radiation may interfere with the brain's ability to form and retain new memories.

Why This Matters

This study adds to a growing body of research showing that mobile phone radiation can affect brain function at exposure levels well within current safety guidelines. The SAR level used (0.22 W/kg) is actually lower than the maximum allowed for mobile phones in many countries, making these findings particularly relevant for everyday phone users. What makes this research especially compelling is its focus on memory consolidation - the critical process by which short-term memories become long-term memories. The researchers identified that EMF exposure specifically disrupted this consolidation phase, suggesting that the timing of exposure matters as much as the intensity. This aligns with other studies showing cognitive effects from mobile phone radiation and challenges the industry's position that current exposure limits are adequate to protect brain function.

Exposure Details

SAR
0.22 W/kg
Exposure Duration
90min/per day for 17 days or 31 days

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 0.22 W/kgExtreme Concern - 0.1 W/kgFCC Limit - 1.6 W/kgEffects observed in the Extreme Concern rangeFCC limit is 7x higher than this level

Study Details

The effects of mobile phone electromagnetic fields (EMFs) were studied on a non-spatial memory task (Object Recognition Task - ORT) that requires entorhinal cortex function.

The task was applied to three groups of mice Mus musculus C57BL/6 (exposed, sham-exposed and contro...

The ORT-derived discrimination indices in all three exposure protocols revealed a major effect on t...

This may imply that the primary EMF target may be the information transfer pathway connecting the entorhinal-parahippocampal regions which participate in the ORT memory task.

Cite This Study
Ntzouni MP, Stamatakis A, Stylianopoulou F, Margaritis LH (2011). Short-term memory in mice is affected by mobile phone radiation. Pathophysiology. 18(3):193-199, 2011.
Show BibTeX
@article{mp_2011_shortterm_memory_in_mice_1237,
  author = {Ntzouni MP and Stamatakis A and Stylianopoulou F and Margaritis LH},
  title = {Short-term memory in mice is affected by mobile phone radiation.},
  year = {2011},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/21112192/},
}
PubMed: 21112192

Cited By (58 papers)

View all 58 citing papers on Semantic Scholar

Quick Questions About This Study

Yes, a 2011 Greek study found that mice exposed to mobile phone radiation at 0.22 W/kg SAR for 17 days showed significantly impaired short-term memory. The radiation particularly affected memory consolidation, the critical process where new memories are stored in the brain.
Research by Ntzouni and colleagues demonstrated that mobile phone radiation at 0.22 W/kg SAR significantly impaired mice's ability to recognize objects they had previously seen. This suggests the radiation interferes with the brain's memory formation and consolidation processes.
The 2011 study suggests mobile phone radiation primarily targets the information transfer pathway connecting entorhinal-parahippocampal brain regions. These areas are crucial for recognition memory tasks and appear most vulnerable to EMF interference during memory consolidation.
Greek researchers found that chronic mobile phone radiation exposure over 17 days significantly impaired memory consolidation in mice. The effects were most pronounced during the critical consolidation phase when memories are being processed and stored in the brain.
Yes, a controlled study exposing mice to mobile phone radiation for 17 days found major impairment in object recognition memory. The discrimination indices showed severe interaction between EMF exposure and the brain's ability to consolidate recognition memories.