Effect of 2.45 GHz Electromagnetic Fields on Fear Memory Extinction in Male Rats

Authors: Dehghani Z, Mahdavi SM, Modarresi Chahardehi A, Mansouri V, Jahani Sherafat S

Year: 2022 Nov 28

Category: Neuroscience

Journal: J Lasers Med Sci

DOI: 10.34172/jlms.2022.52

URL: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10082905/

Abstract

Abstract Summary:

Introduction:

Context: Fear memories can be influenced by both psychological and environmental factors. This study primarily explores the impact of 2.45 GHz microwave radiation on fear learning and memory in rats, highlighting concerns regarding potential health risks.

Methods:

Usage of contextual fear conditioning with foot shocks to examine memory.
Two exposure periods: short-term (7 days) and long-term (30 days).
Exposure specifics: Frequency of 2.45 GHz, power density of 6.0 mW/cm2, and pulse width of 2 ms, for 1 hour per day over 5-6 weeks.
Control group: Rats under identical conditions without radiation exposure.

Findings:

Short-term exposure: Notably increased body weight and decreased freezing time percentage. Long-term exposure: No significant change in body weight; however, substantial decrease in freezing time, suggesting a potential alteration in stress responses and memory processes.

Conclusion:

Analysis of CORT (corticotrophin-releasing hormone) levels post exposure suggests that prolonged exposure to radiation may elevate stress levels, indicated by significant weight changes in the subjects.

electromagnetic fields fear memory rats CORT levels 2.45 GHz stress memory extinction

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