title: Mapping of secondary somatosensory cortex activation induced by vibrational stimulation: an fMRI study.
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.
authors: Department of Radiology, Ground Floor Founders, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA. maldjian@oasis.rad.upenn.edu
authors: J A
authors: JA
authors: Maldjian
authors: A
authors: A
authors: Gottschalk
authors: R S
authors: RS
authors: Patel
authors: D
authors: D
authors: Pincus
authors: J A
authors: JA
authors: Detre
authors: D C
authors: DC
authors: Alsop
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001931:Brain Mapping / Q000379:methods*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D010812:Physical Stimulation; D012016:Reference Values; D013003:Somatosensory Cortex / Q000473:pathology / Q000502:physiology*; D014732:Vibration