EEG changes and stress reactions in rat induced by millimeter wave.
- Author:
Taorong XIE
1
;
Jian PEI
;
Fen LI
;
Xin HUANG
;
Shude CHEN
;
Dengjiang QIAO
Author Information
1. State Key Laboratory of Precision Spectroscopy, Department of Physics, East China Normal University, Shanghai 200241, China.
- Publication Type:Journal Article
- MeSH:
Animals;
Dose-Response Relationship, Radiation;
Electroencephalography;
radiation effects;
Electromagnetic Radiation;
Male;
Random Allocation;
Rats;
Rats, Sprague-Dawley;
Skin;
radiation effects;
Skin Temperature;
radiation effects;
Stress, Physiological;
radiation effects
- From:
Journal of Biomedical Engineering
2011;28(1):40-44
- CountryChina
- Language:Chinese
-
Abstract:
The present paper is aimed to study the processes of stress reaction and their judgment bases in rat induced by 35 GHz millimeter wave quantitatively. The relative change in the average energy of each EEG frequency band decomposed by wavelet analysis was calculated for extracting the stress indicator for the purpose. The rat would experience quiet period, guarding period, deadlock period and prostrating period in sequence. The judgment bases of different stress periods in rat induced by millimeter wave were obtained by analyzing the skin temperature, skin injury and changes of blood biochemical indexes during each stress period. The stress period changed from quiet period to guarding period when the skin temperature of irradiated area reached the thermal pain threshold. It was from guarding period to deadlock period when the skin had gotten serious injury. Then the rat reaction sensitivity decreased, and injury of its visceral organs occurred. The rat got to prostrating period when the sustained irradiation caused the rat's visceral organs to get more serious injury. The further sustained irradiation finally induced death of the rat.
