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The patients were divided into four groups on the basis of the location of their cortical lesion: occipito\u2010temporal, occipito\u2010parietal, rostro\u2010dorsal parietal, or frontal\u2010prefrontal. The six tasks were: direction discrimination, speed discrimination, motion coherence, motion discontinuity, two\u2010dimensional form\u2010from\u2010motion, and motion coherence \u2013 radial. We found both qualitative and quantitative differences among the motion impairments in the four groups: patients with frontal lesions or occipito\u2010temporal lesions were not impaired on any task. The other two groups had substantial impairments, most severe in the group with occipito\u2010parietal damage. We also tested eight healthy control subjects on the same tasks while they were scanned by functional magnetic resonance imaging. The BOLD signal provoked by the different tasks correlated well with the locus of the lesions that led to impairments among the different tasks. The results highlight the advantage of using psychophysical techniques and a variety of visual tasks with neurological patients to tease apart the contribution of different cortical areas to motion processing.<\/jats:p>","DOI":"10.1348\/174866409x471760","type":"journal-article","created":{"date-parts":[[2009,10,9]],"date-time":"2009-10-09T00:23:50Z","timestamp":1255047830000},"page":"121-145","source":"Crossref","is-referenced-by-count":25,"title":["Functional and anatomical profile of visual motion impairments in stroke patients correlate with fMRI in normal subjects"],"prefix":"10.1111","volume":"4","author":[{"given":"Lucia M.","family":"Vaina","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elif M.","family":"Sikoglu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sergei","family":"Soloviev","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marjorie","family":"LeMay","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Salvatore","family":"Squatrito","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gabriella","family":"Pandiani","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alan","family":"Cowey","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2010,12,24]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.92.7.2433"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0896-6273(00)80326-8"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/ana.410370517"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0896-6273(01)00536-0"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10827-005-5473-z"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00221-006-0447-1"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1152\/jn.00330.2007"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuropsychologia.2009.04.005"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1077395"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.neuro.29.051605.112953"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1152\/jn.1985.53.3.603"},{"issue":"5","key":"e_1_2_6_13_1","doi-asserted-by":"crossref","first-page":"2841","DOI":"10.1152\/jn.1996.76.5.2841","article-title":"Visual, presaccadic, and cognitive activation of single neurons in monkey lateral intraparietal area","volume":"76","author":"Colby C. 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