Acute exposure to a 50 Hz magnetic field impairs consolidation of spatial memory in rats
Jadidi M, Firoozabadi SM, Rashidy-Pour A, Sajadi AA, Sadeghi H, Taherian AA. · 2007
View Original AbstractExposure to a 50 Hz magnetic field at 8 mT for 20 minutes right after training impaired spatial memory consolidation in rats.
Plain English Summary
Researchers used a water maze to evaluate how magnetic field exposure affects consolidation and retrieval of spatial memory in rats. Exposure to a 50 Hz, 8 mT magnetic field for 20 minutes immediately after training impaired retention performance, but exposure at 2 mT did not. Exposure given shortly before retention testing had no effect on performance.
Why This Matters
Spatial memory was tested using a hidden platform version of the water maze, with retention evaluated 48 hours after training. A separate experiment used a cued version of the water maze, and 8 mT exposure after training did not impair retention in that task. The researchers concluded that acute exposure to a 50 Hz magnetic field at 8 mT for a short time can impair consolidation of spatial memory.
Exposure Details
- Magnetic Field
- 2,8 mT
- Source/Device
- 50 Hz
- Exposure Duration
- 20 min
Exposure Context
This study used 2,8 mT for magnetic fields:
- 100Kx above the Building Biology guideline of 0.2 mG
- 20Kx above the BioInitiative Report recommendation of 1 mG
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 Details
This study was planned to evaluate the effect of an exposure to magnetic fields on consolidation and retrieval of hippocampus dependent spatial memory using a water maze.
In Experiments 1 and 2, rats were trained in a hidden version (spatial) of water maze task with two ...
Exposure to a 50 Hz 8 mT, but not 2 mT magnetic fields for 20 min immediately after training impaire...
These findings indicate that acute exposure to a 50 Hz magnetic field at 8 mT for short time can impair consolidation of spatial memory.
Show BibTeX
@article{m_2007_acute_exposure_to_a_262,
author = {Jadidi M and Firoozabadi SM and Rashidy-Pour A and Sajadi AA and Sadeghi H and Taherian AA.},
title = {Acute exposure to a 50 Hz magnetic field impairs consolidation of spatial memory in rats},
year = {2007},
url = {https://www.sciencedirect.com/science/article/abs/pii/S107474270700113X},
}