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Extremely low frequency magnetic field (50 Hz, 0.5 mT) modifies fitness components and locomotor activity of Drosophila subobscura.

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Dimitrijević D, Savić T, Anđelković M, Prolić Z, Janać B. · 2014

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Power-line frequency magnetic fields altered fruit fly development and significantly reduced adult movement, suggesting biological effects on nervous system function.

Plain English Summary

Summary written for general audiences

Scientists exposed fruit flies to 50 Hz magnetic fields (power line frequency) and found the fields reduced adult fly movement and activity, regardless of when exposure occurred. This demonstrates that common electrical frequencies can alter nervous system function in living organisms.

Why This Matters

This study provides compelling evidence that power-line frequency magnetic fields can alter fundamental biological processes, even in a simple organism like fruit flies. The 0.5 mT exposure level used here is roughly 1,000 times stronger than typical household magnetic field exposures, but the fact that clear effects emerged demonstrates biological sensitivity to these frequencies. What's particularly noteworthy is that the magnetic field exposure affected both developmental processes and adult behavior, with the behavioral changes persisting longer when adult flies were exposed. The researchers attribute these effects to impacts on hormonal and nervous systems, which aligns with a growing body of research showing EMF can influence neurological function. While we can't directly extrapolate from flies to humans, this research adds to the evidence that magnetic fields are not biologically inert and can produce measurable physiological changes.

Exposure Details

Magnetic Field
0.5 mG
Source/Device
50 Hz
Exposure Duration
48 h

Exposure Context

This study used 0.5 mG for magnetic fields:

Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 0.5 mGExtreme Concern - 5 mGFCC Limit - 2,000 mGEffects observed in the Slight Concern rangeFCC limit is 4,000x higher than this level
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 50 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 50 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Study Details

The aim of this study was to examine the effects in Drosophila subobscura exposed for 48 h to ELF magnetic field (50 Hz, 0.5 mT) at different developmental stages.

Egg-first instar larvae developmental stage of D. subobscura isofemale lines was exposed to ELF mag...

ELF magnetic field shortens developmental time, increases viability and does not affect sex ratio of...

Applied ELF magnetic field modifies fitness components and locomotor activity of D. subobscura. Observed effects can be attributed to the influence of magnetic field on different stages of development where the hormonal and nervous systems play important role in the control of examined parameters.

Cite This Study
Dimitrijević D, Savić T, Anđelković M, Prolić Z, Janać B. (2014). Extremely low frequency magnetic field (50 Hz, 0.5 mT) modifies fitness components and locomotor activity of Drosophila subobscura. Int J Radiat Biol 2014; 90 (5): 337-343.
Show BibTeX
@article{d_2014_extremely_low_frequency_magnetic_243,
  author = {Dimitrijević D and Savić T and Anđelković M and Prolić Z and Janać B.},
  title = {Extremely low frequency magnetic field (50 Hz, 0.5 mT) modifies fitness components and locomotor activity of Drosophila subobscura. },
  year = {2014},
  doi = {10.3109/09553002.2014.888105},
  url = {https://www.tandfonline.com/doi/abs/10.3109/09553002.2014.888105},
}
DOI: 10.3109/09553002.2014.888105

Cited By (16 papers)

Quick Questions About This Study

Research shows power line frequencies (50 Hz) can alter nervous system activity. A 2014 study found that magnetic fields from electrical power reduced movement and activity in fruit flies, demonstrating these common frequencies impact brain function in living organisms.
Studies indicate 50 Hz magnetic fields affect development but with mixed results. Research on fruit flies showed faster development and better survival rates, but significantly reduced adult movement and activity, suggesting complex developmental impacts.
Yes, electrical frequency radiation can impact movement patterns. Scientists found that 50 Hz magnetic fields (typical power line frequency) significantly decreased locomotor activity in fruit flies, with effects lasting longer when exposure occurred during early adult stages.
Power frequency EMF may alter nervous system function based on laboratory studies. Research demonstrates that 50 Hz magnetic fields can reduce movement and activity levels, suggesting these common electrical frequencies influence neural control systems.
50Hz magnetic field exposure produces measurable biological changes during development. Studies show it can shorten development time and increase survival rates, but also reduces adult activity levels, indicating the nervous and hormonal systems respond to these fields.