Mapping of secondary somatosensory cortex activation induced by vibrational stimulation: An fMRI study

Joseph A Maldjian, Allan Gottschalk, Rita S. Patel, Daniel Pincus, John A. Detre, David C. Alsop

Research output: Contribution to journalArticle

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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.

Original languageEnglish (US)
Pages (from-to)291-295
Number of pages5
JournalBrain Research
Volume824
Issue number2
DOIs
Publication statusPublished - Apr 10 1999

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Keywords

  • Brain mapping
  • Functional MRI
  • Secondary somatosensory cortex

ASJC Scopus subject areas

  • Neuroscience(all)
  • Molecular Biology
  • Developmental Biology
  • Clinical Neurology

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