{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T20:20:12Z","timestamp":1777580412715,"version":"3.51.4"},"reference-count":30,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[1996,4,1]],"date-time":"1996-04-01T00:00:00Z","timestamp":828316800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["European Journal of Ophthalmology"],"published-print":{"date-parts":[[1996,4]]},"abstract":"<jats:p>Studies in primates have shown there to be 2 main visual afferent pathways (magno and parvo) operating in parallel with different functional roles. Disease state may selectively affect one or other of these, as shown by particular sensory losses. In cases of treated Cuban tropical \u201cneuropathy\u201d (a retinopathy also occurs) visual acuity and achromatic contrast sensitivity are preserved although colour vision is severely affected indicating selective preservation of the \u201cmagno\u201d pathway. In Melanoma Associated Retinopathy, red-green colour vision is preserved although achromatic contrast sensitivity for low spatial frequencies, and the detection of motion is damaged suggesting preferential damage to the \u201cmagno\u201d pathway. Our studies illuminate two controversial aspects of the P and M systems: the role of type II parvocellular cells in colour vision and the role of M cells in detecting stimuli of low spatial and low temporal frequency.<\/jats:p>","DOI":"10.1177\/112067219600600221","type":"journal-article","created":{"date-parts":[[2018,4,16]],"date-time":"2018-04-16T11:18:37Z","timestamp":1523877517000},"page":"208-214","source":"Crossref","is-referenced-by-count":6,"title":["Selective Damage to Either the \u201cM\u201d Or \u201cP\u201d Cell Pathway in Human Retinal Disease: Implications for Visual Processing"],"prefix":"10.1177","volume":"6","author":[{"given":"J.E.","family":"Wolf","sequence":"first","affiliation":[{"name":"Applied Vision Research Centre, City University, London"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G.B.","family":"Arden","sequence":"additional","affiliation":[{"name":"Applied Vision Research Centre, City University, London"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G.T.","family":"Plant","sequence":"additional","affiliation":[{"name":"Hospital for Neurological Diseases, Queen Square, London - U.K."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1996,4,1]]},"reference":[{"key":"bibr1-112067219600600221","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.07-11-03416.1987"},{"key":"bibr2-112067219600600221","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.83.8.2755"},{"key":"bibr3-112067219600600221","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.85.12.4534"},{"key":"bibr4-112067219600600221","doi-asserted-by":"publisher","DOI":"10.1002\/cne.902890308"},{"key":"bibr5-112067219600600221","unstructured":"PolyakS.L. 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