Mapping of secondary somatosensory cortex activation induced by vibrational stimulation: an fMRI study |
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| Authors: | Maldjian J A Gottschalk A Patel R S Pincus D Detre J A Alsop D C |
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| Affiliation: | Department of Radiology, Ground Floor Founders, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA. maldjian@oasis.rad.upenn.edu |
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| Abstract: | ![]()
Sensory functional MRI was performed in seven normal volunteers at 1. 5 T using a vibratory stimulus applied to the pad of the first finger of the left hand. The data was normalized to a standard atlas, and individual and group statistical parametric maps were computed. Robust bilateral activation was demonstrated in the secondary somatosensory cortex (SII), indicating a bilateral representation of SII in humans. Greater maxima and activation volumes were achieved in contralateral SII as compared to SI. Sensory fMRI can provide a sensitive assay for probing the nature and function of SII in vivo. |
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| Keywords: | Brain mapping Functional MRI Secondary somatosensory cortex |
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