{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,15]],"date-time":"2025-10-15T00:28:16Z","timestamp":1760488096404,"version":"3.32.0"},"reference-count":0,"publisher":"Maximum Academic Press","issue":"2","license":[{"start":{"date-parts":[[1998,2,1]],"date-time":"1998-02-01T00:00:00Z","timestamp":886291200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Vis Neurosci"],"published-print":{"date-parts":[[1998,2]]},"abstract":"<jats:p>First-order (Fourier) motion consists of stable \nspatiotemporal luminance variations. Second-order (non-Fourier) \nmotion consists instead of spatiotemporal modulation of \ncontrast, flicker, or spatial frequency. In spite of extensive \npsychophysical and computational analysis of the nature \nand relationship of these two types of motion, it remains \nunclear whether they are detected by the same mechanism \nor whether separate mechanisms are involved. Here we report \nthe selective impairment of first-order motion, on a range \nof local and global motion tasks, in the contralateral \nvisual hemifield of a patient with unilateral brain damage \ncentered on putative visual areas V2 and V3 in the medial \npart of the occipital lobe. His perception of second-order \nmotion was unimpaired. As his disorder is the obverse of \nthat reported after damage in the vicinity of human visual \narea MT (V5), the results support models of motion processing \nin which first- and second-order motion are, at least in \npart, computed separately at the extrastriate cortical \nlevel.<\/jats:p>","DOI":"10.1017\/s0952523898152082","type":"journal-article","created":{"date-parts":[[2002,7,27]],"date-time":"2002-07-27T13:39:08Z","timestamp":1027777148000},"page":"333-348","source":"Crossref","is-referenced-by-count":73,"title":["The selective impairment of the perception of first-order \nmotion by unilateral cortical brain damage"],"prefix":"10.48130","volume":"15","author":[{"given":"LUCIA M.","family":"VAINA","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"NIKOS","family":"MAKRIS","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"DAVID","family":"KENNEDY","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"ALAN","family":"COWEY","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"27968","published-online":{"date-parts":[[1998,2,1]]},"container-title":["Visual Neuroscience"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0952523898152082","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,1,2]],"date-time":"2025-01-02T19:58:44Z","timestamp":1735847924000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0952523898152082\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1998,2]]},"references-count":0,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1998,2]]}},"alternative-id":["S0952523898152082"],"URL":"https:\/\/doi.org\/10.1017\/s0952523898152082","relation":{},"ISSN":["0952-5238","1469-8714"],"issn-type":[{"type":"print","value":"0952-5238"},{"type":"electronic","value":"1469-8714"}],"subject":[],"published":{"date-parts":[[1998,2]]}}}