In vivo myeloarchitectonic analysis of human striate and extrastriate cortex using magnetic resonance imaging

Vincent P. Clark, Eric Courchesne, Marjorie Grafe

Research output: Contribution to journalArticle

115 Citations (Scopus)

Abstract

A primary goal of investigations into the organization of human cerebral cortex is to determine the functional specificity of architectonic regions. This includes the correlation of neurobehavioral deficits with neuropathological data for clinical diagnosis and treatment, and the identification of active brain regions using functional neural imaging techniques, such as positron emission tomography, electroencephalographic and magnetoen-cephalographic (EEG and MEG) source localization algorithms, and direct cortical stimulation. Currently, the architectonic classification of a cortical region identified by these methods is inferred from the comparison of its cerebral topographic position to cytoarchitectonic brain atlases. However, substantial intersuhject variability in the position of cytoarchitectonic regions with respect to cerebral topographic landmarks may lead to errors in this procedure. An alternative method is presented here, which uses magnetic resonance (MR) imaging to identify myeloarchitectonic regions of isocortex directly by estimating the relative concentration of myelin within cortical laminae. This high-resolution MR protocol is used to identify striate cortex (Brodmann's area 17) and extrastriate cortex in vivo. Correspondence of MR signal intensity with myeloarchitectonic data from a postmortem brain confirms this identification. As MR imaging technology improves, this noninvasive method has the potential to identify and discriminate among at least 50 cortical regions in the living human brain.

Original languageEnglish (US)
Pages (from-to)417-424
Number of pages8
JournalCerebral Cortex
Volume2
Issue number5
StatePublished - 1992
Externally publishedYes

Fingerprint

Magnetic Resonance Imaging
Visual Cortex
Magnetic resonance
Cortex
Brain
Imaging techniques
Magnetic Resonance Spectroscopy
Magnetic Resonance
Positron emission tomography
Atlases
Neocortex
Myelin Sheath
Positron-Emission Tomography
Cerebral Cortex
Positron Emission Tomography
Source Localization
Lamina
Atlas
Landmarks
Technology

ASJC Scopus subject areas

  • Neuroscience(all)
  • Statistics, Probability and Uncertainty
  • Applied Mathematics
  • Public Health, Environmental and Occupational Health
  • Molecular Biology
  • Cellular and Molecular Neuroscience
  • Cognitive Neuroscience

Cite this

In vivo myeloarchitectonic analysis of human striate and extrastriate cortex using magnetic resonance imaging. / Clark, Vincent P.; Courchesne, Eric; Grafe, Marjorie.

In: Cerebral Cortex, Vol. 2, No. 5, 1992, p. 417-424.

Research output: Contribution to journalArticle

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