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The effect of Wi-Fi electromagnetic waves in unimodal and multimodal object recognition tasks in male rats

Bioeffects Seen

https://www.ncbi.nlm.nih.gov/pubmed/28288806 -- Hassanshahi A, Shafeie SA, Fatemi I, Hassanshahi E, Allahtavakoli M, Shabani M, Roohbakhsh A, Shamsizadeh A · 2017

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Chronic Wi-Fi exposure at 2.4 GHz was associated with impaired sensory information processing and object recognition in rats, suggesting potential effects on multisensory integration.

Plain English Summary

Summary written for general audiences

This study examined the effects of 2.4 GHz Wi-Fi electromagnetic exposure on cognitive function in male rats, specifically testing their ability to recognize objects through vision, touch, and combined sensory modalities. Rats exposed to Wi-Fi radiation for 30 days (12 hours daily) showed impaired discrimination between novel and familiar objects across all recognition tasks tested, and demonstrated increased M1 receptor expression in the hippocampus.

Why This Matters

This is an animal model study using rats to investigate neurobiological effects of radiofrequency exposure. The 2.4 GHz frequency and power levels tested are relevant to consumer Wi-Fi use, though results in rodents do not directly translate to human exposure effects without additional evidence.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 2.45 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 2.45 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
https://www.ncbi.nlm.nih.gov/pubmed/28288806 -- Hassanshahi A, Shafeie SA, Fatemi I, Hassanshahi E, Allahtavakoli M, Shabani M, Roohbakhsh A, Shamsizadeh A (2017). The effect of Wi-Fi electromagnetic waves in unimodal and multimodal object recognition tasks in male rats.
Show BibTeX
@article{httpswwwncbinlmnihgovpubmed28288806_hassanshahi_a_shafeie_sa_fatemi_i_hassanshahi_e_allahtavakoli_m_shabani_m_roohbakhsh_a_shamsizadeh_a_ce4844,
  author = {https://www.ncbi.nlm.nih.gov/pubmed/28288806 -- Hassanshahi A and Shafeie SA and Fatemi I and Hassanshahi E and Allahtavakoli M and Shabani M and Roohbakhsh A and Shamsizadeh A},
  title = {The effect of Wi-Fi electromagnetic waves in unimodal and multimodal object recognition tasks in male rats},
  year = {2017},
  doi = {10.1016/j.bbr.2017.03.011},
  url = {https://www.ncbi.nlm.nih.gov/pubmed/28288806},
}
DOI: 10.1016/j.bbr.2017.03.011PubMed: 28332042

Quick Questions About This Study

This study found that 2.45 GHz WiFi exposure during pregnancy caused behavioral problems, anxiety, motor deficits, and brain oxidative stress in offspring that persisted into adulthood, suggesting potential developmental risks.
Yes, the study showed that combining maternal restraint stress with WiFi exposure produced more severe behavioral and developmental problems in offspring than either factor alone, indicating stress amplifies radiation effects.
Just 2 hours daily of 2.45 GHz WiFi exposure throughout pregnancy was sufficient to cause lasting behavioral problems, motor deficits, and brain oxidative stress in the developing offspring.
Male offspring showed more pronounced neuromotor development delays and behavioral problems from prenatal WiFi exposure, though both sexes experienced brain oxidative stress and some behavioral impairments in adulthood.
Prenatal WiFi exposure caused global oxidative stress in brain tissue of both male and female offspring, along with disrupted blood chemistry including altered phosphorus, magnesium, glucose, and calcium levels.