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Iranfar S, Wallace J, Selmaoui B, Yahia-Cherif L

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Authors not listed · 2025

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Cell phone radiation at 900 MHz disrupts brain connectivity patterns in memory and emotion centers.

Plain English Summary

Summary written for general audiences

Researchers exposed healthy young adults to 900 MHz cell phone signals and measured brain activity using magnetoencephalography (MEG). The study found that even brief exposure altered brain connectivity patterns, particularly affecting communication between regions in the right hemisphere including areas involved in memory and emotion processing.

Why This Matters

This study provides compelling evidence that cell phone radiation doesn't just affect individual brain cells-it disrupts how different brain regions communicate with each other. What makes this particularly significant is that the researchers used 900 MHz GSM signals at 2 watts maximum power, which is well within the range of typical cell phone emissions. The fact that they observed changes in brain functional connectivity in areas like the entorhinal cortex (crucial for memory formation) and posterior cingulate (important for consciousness and self-awareness) suggests these effects could have real-world cognitive implications. The science demonstrates that our brains are responding to radiofrequency fields in measurable ways, even during short exposures. While the wireless industry often dismisses concerns about non-thermal effects, studies like this show that EMF exposure can alter fundamental brain processes without heating tissue.

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 (2025). Iranfar S, Wallace J, Selmaoui B, Yahia-Cherif L.
Show BibTeX
@article{iranfar_s_wallace_j_selmaoui_b_yahia_cherif_l_ce3276,
  author = {Unknown},
  title = {Iranfar S, Wallace J, Selmaoui B, Yahia-Cherif L},
  year = {2025},
  doi = {10.1016/j.neuroscience.2025.11.007},
  
}
DOI: 10.1016/j.neuroscience.2025.11.007PubMed: 41203108

Quick Questions About This Study

Yes, this study found that 900 MHz GSM signals significantly altered brain functional connectivity, particularly affecting communication between regions in the right hemisphere including memory and emotion processing areas.
The 217 Hz modulated 900 MHz signals specifically affected the transverse temporal, entorhinal, insula, and posterior cingulate regions-all located in the right hemisphere and involved in sensory processing, memory, and consciousness.
Yes, GSM signals at maximum 2 watts power disrupted intra-hemispheric brain functional connectivity. This power level is typical of cell phone emissions, suggesting everyday phone use could affect neural communication patterns.
The study showed brain connectivity changes occurred during acute (short-term) exposure to GSM signals. Researchers compared pre- and post-exposure brain scans using magnetoencephalography to detect these rapid neural changes.
Corrected imaginary phase-locking value measures brain functional connectivity-how well different brain regions synchronize their electrical activity. This study used this metric to detect EMF-induced changes in neural communication patterns.