Visual Field Map Clusters in Macaque Extrastriate Visual Cortex

摘要: The macaque visual cortex contains >30 different functional areas, yet surprisingly little is known about the underlying organizational principles that structure its components into a complete "visual" unit. A recent model of cortical organization in humans suggests field maps are organized as clusters. Clusters minimize axonal connections between individual represent common percepts, with clusters thought to carry out functions. Experimental support for this hypothesis, however, lacking macaques, leaving open question whether it unique or more general primate vision. Here we show, using high-resolution blood oxygen level-dependent magnetic resonance imaging data awake monkey at 7 T, middle temporal area (area MT/V5) and neighbors cluster foveal representation circular eccentricity map. This novel view on topography MT/V5 satellites indicates map evolutionarily preserved may be fundamental principle Old World cortex.