Visual cortex

The dorsomedial area (DM) also known as V6, appears to respond to visual stimuli associated with self-motion and wide-field stimulation. V6, is a subdivision of the visual cortex of primates first described by John Allman and Jon Kaas in 1975. V6 is located in the dorsal part of the extrastriate cortex, near the deep groove through the centre of the brain (medial longitudinal fissure), and typically also includes portions of the medial cortex, such as the parieto-occipital sulcus. DM contains a topographically organized representation of the entire field of vision. Like the middle temporal area V5, DM receives direct connections from the primary visual cortex. Also similar to V5, DM is also characterized by high myelin content, a characteristic that is usually present in brain structures involved in fast transmission of information. For many years, it was considered that DM only existed in New World monkeys. However, more recent research has suggested that DM also exists in Old World monkeys and perhaps humans. V6 is also sometimes referred to as the parietooccipital area (PO), although the correspondence is not exact.