Editing Visual cortex (section)

===Properties===
Neurons in area DM/V6 of [[night monkey]]s and [[common marmoset]]s have unique response properties, including an extremely sharp selectivity for the orientation of visual contours, and preference for long, uninterrupted lines covering large parts of the visual field.<ref>{{cite journal | vauthors = Baker JF, Petersen SE, Newsome WT, Allman JM | title = Visual response properties of neurons in four extrastriate visual areas of the owl monkey (Aotus trivirgatus): a quantitative comparison of medial, dorsomedial, dorsolateral, and middle temporal areas | journal = Journal of Neurophysiology | volume = 45 | issue = 3 | pages = 397–416 | date = March 1981 | pmid = 7218008 | doi = 10.1152/jn.1981.45.3.397 | s2cid = 9865958 }}</ref><ref>{{cite journal | vauthors = Lui LL, Bourne JA, Rosa MG | title = Functional response properties of neurons in the dorsomedial visual area of New World monkeys (Callithrix jacchus) | journal = Cerebral Cortex | volume = 16 | issue = 2 | pages = 162–177 | date = February 2006 | pmid = 15858163 | doi = 10.1093/cercor/bhi094 | doi-access = free }}</ref>

However, in comparison with area MT, a much smaller proportion of DM cells shows selectivity for the direction of motion of visual patterns.<ref name="fmritools.com">{{Cite web | vauthors = Ducreux D |title=Calcarine (Visual) Cortex |website=Connectopedia Knowledge Database |url=http://www.fmritools.com/kdb/grey-matter/occipital-lobe/calcarine-visual-cortex/index.html |access-date=2018-01-25|url-status=unfit |archive-date=2018-01-20|archive-url=https://web.archive.org/web/20180120053123/http://www.fmritools.com/kdb/grey-matter/occipital-lobe/calcarine-visual-cortex/index.html}}</ref> Another notable difference with area MT is that cells in DM are attuned to low spatial frequency components of an image, and respond poorly to the motion of textured patterns such as a field of random dots.<ref name="fmritools.com"/> These response properties suggest that DM and MT may work in parallel, with the former analyzing self-motion relative to the environment, and the latter analyzing the motion of individual objects relative to the background.<ref name="fmritools.com"/>

Recently, an area responsive to wide-angle flow fields has been identified in the human and is thought to be a homologue of macaque area V6.<ref>{{cite journal | vauthors = Pitzalis S, Sereno MI, Committeri G, Fattori P, Galati G, Patria F, Galletti C | title = Human v6: the medial motion area | journal = Cerebral Cortex | volume = 20 | issue = 2 | pages = 411–424 | date = February 2010 | pmid = 19502476 | pmc = 2803738 | doi = 10.1093/cercor/bhp112 }}</ref>