Effect of focused ultrasound stimulation at different ultrasonic power levels on the local field potential power spectrum  

作　　者：袁毅 路承彪 李小俚 

机构地区：[1]Institute of Electrical Engineering, Yanshan University [2]State Key Laboratory of Cognitive Neuroscience and Learning & IDG/Mc Govern Institute for Brain Research,Beijing Normal University [3]Center for Collaboration and Innovation in Brain and Learning Sciences, Beijing Normal University

出　　处：《Chinese Physics B》2015年第8期646-650,共5页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.61273063);China Postdoctoral Science Foundation(Grant No.2013M540215);the Natural Science Foundation of Hebei Province,China(Grant No.F2014203161)

摘　　要：Local field potential(LFP) signals of the rat hippocampus were recorded under noninvasive focused ultrasound stimulation(FUS) with different ultrasonic powers. The LFP mean absolute power was calculated with the Welch algorithm at the delta, theta, alpha, beta, and gamma frequency bands. The experimental results demonstrate that the LFP mean absolute power at different frequency bands increases as the ultrasound power increases.Local field potential(LFP) signals of the rat hippocampus were recorded under noninvasive focused ultrasound stimulation(FUS) with different ultrasonic powers. The LFP mean absolute power was calculated with the Welch algorithm at the delta, theta, alpha, beta, and gamma frequency bands. The experimental results demonstrate that the LFP mean absolute power at different frequency bands increases as the ultrasound power increases.

关 键 词：focused ultrasound stimulation local field potential power spectrum 

分 类 号：O441.1[理学—电磁学]