Abstract
Delineation of the retinotopic visual areas in the individual subject, using functional MR Imaging The methodology presented allows the delineation of primary visual areas by taking advantage of their retinotopic organization. Visual stimuli, which cover the visual field in a periodic fashion, are used. They induce, in the retinotopic areas, periodic activations measured by means of functional MRI. The visual-field sign changes between adjacent retinotopic areas. These changes may be detected in the phase maps obtained using Fourier analysis. The borders between adjacent areas are reconstructed on a flattened representation of the cortical ribbon. We present here such delineated flat maps generated on the basis of functional MRI experiments performed at 1.5 T. To cite this article: J. Warnking et al., C. R. Chimie 7 (2004).
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