Author/Editor		Babiloni, F; Carducci, F; Babiloni, C; Fattorini, L; Onorati, P; Urbano, A
Title		High resolution electroencephalography
Type		članek
Source		In: Stalberg EV, de Weerd AW, Zidar J, editors. ECCN 98. 9th European congress of clinical neurophysiology; 1998 Jun 4-7; Ljubljana. Bologna: Monduzzi Editore,
Publication year		1998
Volume		str. 71-4
Language		eng
Abstract		Two high resolution electroencephalography (HR-EEG) technologies were tested in the spatial enhancement of P20-N20 complex to medianP20-N20 complexof median-nerve somatosensory-evoked potentials recorded (128 channels) from two normal subjects. These technologies were based on the estimate of the surface Laplacian (SL) and spatialdeconvolution (SD) of the potential on realistic magnetic resonance-constructed scalp surface model and multicompartment head volume conductor model, respectively. The SL and SD estimates produced a nearly equal spatial enhancement of the frontal P20 and parietal N20. With respect to the original potential distributions, the SL and SD distributions presented more circumscribed maxima located closer to the contralateralcentral sulcus. These data are consistent with known origin of the P20-N20 complex in area 2b of primary somatosensory cortex.
Descriptors		ELECTROENCEPHALOGRAPHY MAGNETIC RESONANCE IMAGING HEAD