Malpeli Lab

Our lab studies the neurophysiology of the mammalian visual system.
Views of the lateral geniculate nucleus of the rhesus monkey extracted from a functional atlas. Projection columns representing directions in visual space: red, contra-eye parvo; yellow, ipsi-eye parvo; green, ipsi-eye magno; blue, contra-eye magno. Columns are retinotopically located at intersections of the light grey background polar grid (more clearly visible on the high-resolution image): inclinations every 15°; eccentricities spanning roughly equal distances in the nucleus (0°, 1.0°, 1.9°, 3.4°, 6.3°, 11.3°, 19.2°, 30.7°, 46.6°, and 67.6°). The heart-shaped central figure intersecting the oval blind spots separates regions of visual space represented by six (central) and four (peripheral) geniculate layers. Cut faces of semitransparent views pass though the blind spot: upper panels show the 17° isoeccentricity surface; lower panels show the minus 7° isoinclination surface. The posterior pole (foveal representation) is in the uppermost part of each panel; the lower-left panel shows the ventral surface. Projection columns are retouched to improve clarity. Made with the assistance of Janet Sinn-Hanlon of the Visualization, Media and Imaging Laboratory of the Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign.

Beckman Institute

Last modified: October 4, 2007