Comparison between ERP (sLORETA) and fMRI of somatosensory cortex for healthy group

Abstract

The purpose of this paper is to present event-related potential (ERP) measurements during visual language processing experiment and comparison with functional magnetic resonance imaging as well as compare brain activity and estimate the diagnostic value. sLORETA (standardized Low Resolution Electromagnetic Tomography) was chosen to compute current source densities because it can lead to the same type of mapping activity as fMRI, which was used as a reference method for imaging of somatosensory areas. Research focused on selected paradigms which was finger movement for healthy group. Exogenous potentials and associated endogenous potentials were analyzed, taking into account the phenomenon of lateralization and showing the impact of parameters in SPM in the area of somatosensory cortex of fMRI study.