Abstract #3925
Investigating somatotopy in SI and SII with high resolution multiband fMRI at 7T
Rosa Sanchez Panchuelo 1 , Keren Yang 1 , Martin Buehrer 2 , Richard Bowtell 1 , and Susan Francis 1
1
University of Nottingham, Nottingham, United
Kingdom,
2
Gyrotools,
Zurich, Switzerland
By using multiband acquisition to extend slice coverage,
we investigate body somatotopy in SI and SII with high
spatial resolution at 7T. fMRI was performed during both
fingertip and face-hand-foot mapping paradigms in three
subjects. The fingertip mapping paradigm revealed clear
digit somatotopic representation within SI, but not in
SII for all subjects, suggesting an overlapping
representations of the fingers in SII. The
face-hand-foot mapping showed a somatotopic arrangement
in SII, with the representation of the face, hand and
foot ordered from lateral to medial, in agreement with
previous fMRI experiments and electrophysiology in
primates.
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