EEG Spectral Asymmetry Index for detection of depression at Individual and Fixed Frequency Bands
This study is aimed to compare the electroencephalographic (EEG) spectral asymmetry index (SASI) calculated at fixed and individual frequency bands.In addition,the possible age effect on SASI is analyzed.SASI is based on balance between the powers of two special EEG frequency bands selected lower and higher of the EEG spectrum maximum and excluding the central frequency from the calculations.EEG recordings were carried out on a group of 18 depressive subjects,a group of 18 age matched controls and two groups of young controls (15 subjects in each).The individual and fixed SASI was calculated for 10 minute resting EEG signals from channel P3.The individual SASI differentiated the depressive subjects from all the other control groups.Fixed SASI was not so consistent and performed at poorer quality.The obvious age effect on SASI was not found,however,variances of results between control groups of different age decreased with individual tuning of frequency bands.Therefore,while using spectral asymmetry index for detection of depression or other mental disorders,the individual selection of EEG frequency bands is recommended.
EEG analysis spectral asymmetry depression mental disorder
A. Suhhova M. Bachmann J. Lass K. Aadamsoo (U). V(o)hma H. Hinrikus
Department of Biomedical Engineering, Technomedicum of the Tallinn University of Technology, Tallinn Clinic of Psychiatry, North Estonia Regional Hospital, Tallinn, Estonia
国际会议
World Congress on Medical Physics and Biomedical Engineering (2012年医学物理及生物医学工程国际会议(IFMBE))
北京
英文
589-592
2012-05-26（万方平台首次上网日期，不代表论文的发表时间）