فهرست نشریات علمی دسترسی آزاد ایران

Emotional and environmental factors influence the extinction of fear memories. To evaluate the possible risks, we investigated the effect of 2.45 GHz microwave radiation on rats' fear learning and memory capacity. The present study aimed to assess the impacts of corticosterone levels on the consolidation and reconsolidation of fear-conditioning memories. The rats were evaluated in contextual fear conditioning using foot shocks in both the short-term (7 days) and the long-term (30 days). Exposure was carried out on young male Wistar rats for 5–6 weeks continuously (1 h/day) with radio frequency electromagnetic field radiation possessing a frequency, power density, and pulse width of 2.45 GHz, 6.0 mW/cm2, and 2 ms, respectively. Several animals housed without exposure to radiation under identical conditions are controlled. Based on the results obtained in this research, a decrease in body weight and percentage of freezing time was observed after the long-term exposure groups significantly. As corticosterone levels were analyzed, they did not alter their responses after the conditioning fear memory test.