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The alteration of spontaneous low frequency oscillations caused by acute electromagnetic fields exposure.

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Lv B, Chen Z, Wu T, Shao Q, Yan D, Ma L, Lu K, Xie Y. · 2013

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Just 30 minutes of LTE radiation exposure altered brain activity in multiple regions, showing wireless signals aren't biologically neutral.

Plain English Summary

Summary written for general audiences

Researchers exposed 18 people to LTE (4G cellular) radiation for 30 minutes near their right ear, then used brain scans to measure changes in spontaneous brain activity. They found decreased activity in multiple brain regions, including areas responsible for hearing, movement control, and decision-making. This suggests that even brief exposure to modern wireless signals can alter how the brain functions at rest.

Why This Matters

This study adds to mounting evidence that radiofrequency radiation from modern wireless technologies directly affects brain function. What makes this research particularly relevant is its focus on LTE signals, the backbone of 4G networks that power most smartphones today. The researchers used sophisticated brain imaging to detect changes in spontaneous neural oscillations after just 30 minutes of exposure. The affected brain regions include areas critical for auditory processing, motor control, and executive function. While the study doesn't specify exact power levels, the exposure setup mimicked real-world phone use with the radiation source positioned near the ear. The science demonstrates that our brains respond measurably to the electromagnetic fields generated by everyday wireless devices, contradicting claims that these signals are biologically inert.

Exposure Information

Specific exposure levels were not quantified in this study. Duration: 30 minutes

Study Details

The motivation of this study is to evaluate the possible alteration of regional resting state brain activity induced by the acute radiofrequency electromagnetic field (RF-EMF) exposure (30min) of Long Term Evolution (LTE) signal.

We designed a controllable near-field LTE RF-EMF exposure environment. Eighteen subjects participate...

We found the decreased ALFF value around in left superior temporal gyrus, left middle temporal gyrus...

The study provided the evidences that 30min LTE RF-EMF exposure modulated the spontaneous low frequency fluctuations in some brain regions.

Cite This Study
Lv B, Chen Z, Wu T, Shao Q, Yan D, Ma L, Lu K, Xie Y. (2013). The alteration of spontaneous low frequency oscillations caused by acute electromagnetic fields exposure. Clin Neurophysiol. 2013 Sep 4. pii: S1388-2457(13)00976-0. doi: 10.1016/j.clinph.2013.07.018.
Show BibTeX
@article{b_2013_the_alteration_of_spontaneous_2391,
  author = {Lv B and Chen Z and Wu T and Shao Q and Yan D and Ma L and Lu K and Xie Y.},
  title = {The alteration of spontaneous low frequency oscillations caused by acute electromagnetic fields exposure.},
  year = {2013},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/24012322/},
}
PubMed: 24012322

Cited By (37 papers)

Quick Questions About This Study

Yes, a 2013 study found that just 30 minutes of LTE (4G) radiation exposure near the ear significantly decreased spontaneous brain activity in multiple regions. The researchers used brain scans to measure changes in natural brain oscillations after exposure.
Research shows LTE radiation can impact brain regions responsible for hearing. A study found decreased activity in both left and right superior temporal gyrus areas after 30 minutes of 4G exposure, suggesting potential effects on auditory processing centers.
Brain function changes can occur within 30 minutes of 4G LTE exposure. Researchers detected decreased activity in decision-making and movement control areas of the brain after this brief exposure period, indicating rapid neurological responses to wireless signals.
LTE radiation primarily affects the temporal gyrus (hearing), medial frontal gyrus (decision-making), and paracentral lobule (movement control) brain regions. These areas showed decreased spontaneous activity after 30 minutes of exposure in brain imaging studies.
Yes, 4G LTE phones can alter resting brain wave patterns. Studies show that 30-minute exposure to LTE signals modulates spontaneous low-frequency brain oscillations, changing how the brain functions even when not actively engaged in tasks.