The ventral surface of the human occipital lobe contains multiple retinotopic
maps. The most posterior of these maps is considered a potential homolog of
macaque V4, and referred to as human V4 (“hV4”). The
location of the hV4 map, its retinotopic organization, its role in visual
encoding, and the cortical areas it borders have been the subject of
considerable investigation and debate over the last 25 years. We review the
history of this map and adjacent maps in ventral occipital cortex, and consider
the different hypotheses for how these ventral occipital maps are organized.
Advances in neuroimaging, computational modeling, and characterization of the
nearby anatomical landmarks and functional brain areas have improved our
understanding of where human V4 is and what kind of visual representations it
contains.