Detection of orientation specific activation zones in human V1 using fMRI
Ugurbil K, Harel N, Yacoub E
University of Minnesota
The development of high field systems have allowed for improved capabilities of BOLD fMRI. Higher signal to noise ratios as well as increased spatial specificity have made robust mapping of cortical columns in humans attainable. Several groups have previously demonstrated ocular dominance columns (ODC) maps in humans using fMRI; however, to date there have?t been any studies that have successfully mapped orientation specific activation in humans directly. In this work, we show for the first time, direct mapping of orientation specific domains in humans with respect to established ODC maps.