The influence of low-frequency rTMS on EEG of rats.
This study aimed to determine the effect of low-frequency repetitive transcranial magnetic stimulation (rTMS) on electroencephalograms (EEGs) of rats. Fifteen Sprague-Dawley rats were subject to 100 pulses of 0.5 Hz rTMS, or sham stimulation. EEGs were recorded before stimulation and within 1 min after rTMS or sham stimulation. Estimates of the EEG correlation dimension (D(2)) and power spectra were calculated. Results show that the D(2) reduced significantly after low-frequency rTMS, but not after sham stimulation. Mean absolute power (MAP) of the gamma band and relative power (RP) of the beta and gamma bands reduce markedly after low-frequency rTMS, but there are no changes with sham stimulation. These results indicate that low-frequency rTMS could affect cortical activities significantly, but effects were markedly different from those of high-frequency rTMS.
Li
Linxia
L
Bioelectromagnetic Lab, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100080, China.
Yin
Zhenggang
Z
Huo
Xiaolin
X
D000200:Action Potentials / Q000502:physiology / Q000528:radiation effects; D000818:Animals; D001921:Brain / Q000502:physiology* / Q000528:radiation effects*; D004569:Electroencephalography / Q000528:radiation effects*; D004574:Electromagnetic Fields; D008297:Male; D009474:Neurons / Q000502:physiology / Q000528:radiation effects; D051381:Rats; D017207:Rats, Sprague-Dawley; D050781:Transcranial Magnetic Stimulation