Title :
Separation of Subcortical Component from Cortical Auditory Evoked Potential by Independent Component Analysis
Author :
Takahashi, Hirokazu ; Nakao, Masayuki ; Kaga, Kimitaka
Author_Institution :
Graduate Sch. of Inf. Sci. & Technol., Tokyo Univ.
fDate :
Aug. 30 2006-Sept. 3 2006
Abstract :
Auditory evoked potentials (AEPs) in the temporal cortex have typical slow positive/negative (P1/N1) biphasic waves, which are occasionally associated with an additional earlier small deflection (P0/N0). In the present paper, we attempted to address the neural origin of P0/N0 deflection by the independent component analysis (ICA) of densely mapped cortical AEPs of rats. The ICA results suggest that the deflection appears when subcortical contribution to AEP is equal to or larger than cortical contribution
Keywords :
auditory evoked potentials; independent component analysis; medical signal processing; source separation; ICA; biphasic waves; cortical auditory evoked potential; deflection; independent component analysis; subcortical component separation; temporal cortex; Band pass filters; Cities and towns; Delay; Ear; Independent component analysis; Microelectrodes; Microphones; Rats; Testing; USA Councils;
Conference_Titel :
Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE
Conference_Location :
New York, NY
Print_ISBN :
1-4244-0032-5
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2006.259915
