Paper Info
Title
Topographic organization of the human primary and secondary somatosensory cortices: comparison of fMRI and MEG findings.
Abstract
We studied MEG and fMRI responses to electric median and tibial nerve stimulation in five healthy volunteers. The aim was to compare the results with those of a previous study using only fMRI on the primary and secondary somatosensory cortices in which the somatotopic organization of SII was observed with fMRI. In the present work we focus on the comparison between fMRI activation and MEG equivalent current dipole (ECD) localizations in the SII area. The somatotopic organization of SII was confirmed by MEG, with the upper limb areas located more anteriorly and more inferiorly than the lower limb areas. In addition a substantial consistency of the ECD locations with the areas of fMRI activation was observed, with an average mismatch of about 1 cm. MEG ECDs and fMRI activation areas showed comparable differences in SI.
Year
DOI
Venue
2002
10.1006/nimg.2002.1253
NeuroImage
Keywords
DocType
Volume
functional magnetic resonance,magnetoencephalography,primary and secondary somatosensory cortex
Journal
17
Issue
ISSN
Citations 
3
1053-8119
19
PageRank 
References 
Authors
3.23
0
10
Name
Order
Citations
PageRank
Cosimo Del Gratta110011.08
S Della Penna2628.00
A Ferretti31039.98
R Franciotti4506.99
V Pizzella520024.54
A Tartaro6466.65
K Torquati7264.66
L Bonomo8193.23
Gian Luca Romani9657.38
P M Rossini10365.21