In vivo mapping of functional domains and axonal connectivity in cat visual cortex using magnetic resonance imaging

Dae-Shik Kim*, Mina Kim, I. Ronen, Elia Formisano, Keun-Ho Kim, Kamil Ugurbil, Susumo Mori, Rainer Goebel

*Corresponding author for this work

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    Abstract

    Noninvasive cognitive neuroimaging studies based on functional magnetic resonance imaging (fMRI) are of ever-increasing importance for basic and clinical neurosciences. The explanatory power of fMRI could be greatly expanded, however, if the pattern of the neuronal circuitry underlying functional activation could be made visible in an equally noninvasive manner. In this study, blood oxygenation level-dependent (BOLD)-based fMRI and diffusion tensor imaging (DTI) were performed in the same cat visual cortex, and the foci of fMRI activation utilized as seeding points for 3D DTI fiber reconstruction algorithms, thus providing the map of the axonal circuitry underlying visual information processing. The methods developed in this study will lay the foundation for in vivo neuroanatomy and the ability for noninvasive longitudinal studies of brain development.
    Original languageEnglish
    Pages (from-to)1131-1140
    JournalMagnetic Resonance Imaging
    Volume21
    Issue number10
    DOIs
    Publication statusPublished - 2003

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