{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T19:17:25Z","timestamp":1790363845419,"version":"4.1.0"},"reference-count":87,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2020,1,8]],"date-time":"2020-01-08T00:00:00Z","timestamp":1578441600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Restorative Neurology and Neuroscience"],"published-print":{"date-parts":[[2020,8,20]]},"abstract":"<jats:p>The most common visual defect to follow a lesion of the retrochiasmal pathways is homonymous hemianopia (HH), whereby patients are blind to the contralesional visual field of each eye. Homonymous hemianopia has been studied in terms of its deleterious consequences on perceptual, cognitive and motor tasks as well as because it represents an interesting model of vision loss after a unilateral lesion of the occipital lobe. From a behavioral perspective, in addition to exhibiting a severe deficit in their contralesional visual field, HH patients can also exhibit dissociations between perception and awareness. Firstly, HH patients suffering from anosognosia may be unaware of their visual field defect. Secondly, HH patients can present with unconscious visual abilities in the blind hemifield, a phenomenon referred to as blindsight. Thirdly, recent reports demonstrate that HH patients can suffer from a subtle deficit in their ipsilesional visual field that they are unaware of, a condition called sightblindness ( i.e. the reverse case of \u2018 blindsight\u2019). Finally, HH patients may also exhibit visual hallucinations in their blind field; however, such patients are not systematically aware that their perceptions are unreal. In this review, we provide an overview of the visual-field losses in HH patients after a left or right unilateral occipital lesion. Furthermore, we explore the implications of these four phenomena for models of visual processing and rehabilitation of visual field defects in HH patients. Finally, in contrast to the traditional view that HH is solely a visual-field defect, we discuss why this deficit is an interesting model for studying the dissociation between perception and awareness.<\/jats:p>","DOI":"10.3233\/rnn-190951","type":"journal-article","created":{"date-parts":[[2020,1,10]],"date-time":"2020-01-10T11:55:29Z","timestamp":1578657329000},"page":"189-201","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":6,"title":["Dissociations between perception and awareness in hemianopia"],"prefix":"10.1177","volume":"38","author":[{"given":"Sylvie","family":"Chokron","sequence":"first","affiliation":[{"name":"Integrative Neuroscience and Cognition Center, CNRS, UMR 8242 et Universit\u00e9 Paris-Descartes, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lucas","family":"Dubourg","sequence":"additional","affiliation":[{"name":"Institut de Neuropsychologie, Neurovision, NeuroCognition, Fondation Ophtalmologique Adolphe de Rothschild, Paris, France"},{"name":"Integrative Neuroscience and Cognition Center, CNRS, UMR 8242 et Universit\u00e9 Paris-Descartes, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cl\u00e9mentine","family":"Garric","sequence":"additional","affiliation":[{"name":"Laboratoire de Sciences Cognitives et Affectives, SCALab, CNRS UMR, Facult\u00e9 de M\u00e9decine, P\u00f4le Recherche et Universit\u00e9 de Lille, Lille, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fiora","family":"Martinelli","sequence":"additional","affiliation":[{"name":"Integrative Neuroscience and Cognition Center, CNRS, UMR 8242 et Universit\u00e9 Paris-Descartes, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C\u00e9line","family":"Perez","sequence":"additional","affiliation":[{"name":"Institut de Neuropsychologie, Neurovision, NeuroCognition, Fondation Ophtalmologique Adolphe de Rothschild, Paris, France"},{"name":"Integrative Neuroscience and Cognition Center, CNRS, UMR 8242 et Universit\u00e9 Paris-Descartes, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2020,1,8]]},"reference":[{"key":"ref001","doi-asserted-by":"publisher","DOI":"10.7554\/eLife.08935"},{"key":"ref002","doi-asserted-by":"publisher","DOI":"10.1080\/13554790600630262"},{"key":"ref003","doi-asserted-by":"publisher","DOI":"10.1007\/BF02126945"},{"key":"ref004","first-page":"365","volume":"31","author":"Babinski, J.","year":"1918","journal-title":"Revue neurologique"},{"key":"ref005","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/74.3.363"},{"key":"ref006","doi-asserted-by":"publisher","DOI":"10.1093\/ageing\/11.1.17"},{"key":"ref007","doi-asserted-by":"publisher","DOI":"10.1016\/0028-3932(86)90092-8"},{"key":"ref008","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0063700"},{"key":"ref009","doi-asserted-by":"publisher","DOI":"10.3389\/fneur.2013.00080"},{"key":"ref010","doi-asserted-by":"publisher","DOI":"10.1055\/s-2008-1034805"},{"issue":"6","key":"ref011","first-page":"432","volume":"28","author":"Braun, C.M.J","year":"2003","journal-title":"Journal of Psychiatry & Neuroscience"},{"key":"ref012","doi-asserted-by":"publisher","DOI":"10.1098\/rstb.2013.0213"},{"key":"ref013","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/awn063"},{"key":"ref014","doi-asserted-by":"publisher","DOI":"10.1016\/j.concog.2014.09.017"},{"key":"ref015","doi-asserted-by":"publisher","DOI":"10.1017\/S0140525X00016861"},{"key":"ref016","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.0000000000003921"},{"key":"ref017","doi-asserted-by":"publisher","DOI":"10.1016\/j.cortex.2009.08.013"},{"key":"ref018","doi-asserted-by":"publisher","DOI":"10.1016\/j.cortex.2015.05.010"},{"key":"ref019","doi-asserted-by":"publisher","DOI":"10.1016\/j.concog.2014.07.010"},{"key":"ref020","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1714801114"},{"key":"ref021","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.49.1.88"},{"key":"ref022","doi-asserted-by":"publisher","DOI":"10.1016\/S0006-8993(99)02169-1"},{"key":"ref023","doi-asserted-by":"publisher","DOI":"10.3233\/RNN-2008-00444"},{"key":"ref024","doi-asserted-by":"publisher","DOI":"10.3389\/fnsys.2016.00057"},{"key":"ref025","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuropsychologia.2018.03.013"},{"key":"ref026","doi-asserted-by":"publisher","DOI":"10.1007\/s00221-009-1914-2"},{"key":"ref027","doi-asserted-by":"publisher","DOI":"10.1016\/S0079-6123(03)14418-4"},{"key":"ref028","first-page":"95","volume":"69","author":"Critchley, M.","year":"1949","journal-title":"Transactions of the Ophthalmological Society of U.K."},{"key":"ref029","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.1076-14.2014"},{"issue":"5","key":"ref030","first-page":"678","volume":"2","author":"De Morsier, G.","year":"1967","journal-title":"Annales M\u00e9dico-Psychologiques (Paris)"},{"key":"ref031","doi-asserted-by":"publisher","DOI":"10.1016\/S0079-6123(01)34023-2"},{"key":"ref032","doi-asserted-by":"publisher","DOI":"10.1097\/00005053-199703000-00009"},{"key":"ref033","doi-asserted-by":"publisher","DOI":"10.1007\/s00221-013-3803-y"},{"key":"ref034","doi-asserted-by":"publisher","DOI":"10.1159\/000494954"},{"key":"ref035","doi-asserted-by":"publisher","DOI":"10.1016\/j.cortex.2019.05.006"},{"key":"ref036","doi-asserted-by":"publisher","DOI":"10.3389\/fnsys.2017.00064"},{"key":"ref037","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.30.3.327"},{"key":"ref038","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/112.4.871"},{"key":"ref039","doi-asserted-by":"publisher","DOI":"10.1136\/bjo.2.7.353"},{"key":"ref040","doi-asserted-by":"publisher","DOI":"10.1016\/j.concog.2014.08.005"},{"key":"ref041","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-018-08058-0"},{"key":"ref042","doi-asserted-by":"publisher","DOI":"10.1016\/0022-510X(86)90073-0"},{"key":"ref043","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.48.1.29"},{"key":"ref044","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/awl111"},{"key":"ref045","doi-asserted-by":"publisher","DOI":"10.1146\/annurev-neuro-062111-150356"},{"key":"ref046","doi-asserted-by":"publisher","DOI":"10.1016\/0278-2626(90)90052-P"},{"key":"ref047","author":"Martinelli, F","year":"2019","journal-title":"Neurology"},{"key":"ref048","doi-asserted-by":"publisher","DOI":"10.1016\/0028-3932(86)90074-6"},{"key":"ref049","doi-asserted-by":"publisher","DOI":"10.3389\/fpsyg.2016.00901"},{"key":"ref050","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuropsychologia.2017.10.029"},{"key":"ref051","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuropsychologia.2006.01.036"},{"key":"ref052","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuropsychologia.2017.10.033"},{"key":"ref053","doi-asserted-by":"publisher","DOI":"10.1007\/s00221-011-2578-2"},{"key":"ref054","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0003028"},{"key":"ref055","doi-asserted-by":"publisher","DOI":"10.1136\/bjo.81.4.324"},{"key":"ref056","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.66.4.536"},{"key":"ref057","doi-asserted-by":"publisher","DOI":"10.1016\/j.bbr.2007.10.025"},{"key":"ref058","doi-asserted-by":"publisher","DOI":"10.1016\/0028-3932(75)90041-X"},{"issue":"8","key":"ref059","first-page":"82","volume":"22","author":"Perez, C.","year":"2014","journal-title":"Frontiers in Integrative Neuroscience"},{"key":"ref060","first-page":"238","volume":"6","author":"Perez, C","year":"2014","journal-title":"Revue de Neuropsychologie, Neurosciences cognitives et cliniques"},{"key":"ref061","doi-asserted-by":"publisher","DOI":"10.1007\/s10548-012-0244-z"},{"key":"ref062","doi-asserted-by":"publisher","DOI":"10.1016\/j.brainres.2005.12.051"},{"key":"ref063","doi-asserted-by":"publisher","DOI":"10.1016\/j.brainres.2010.10.065"},{"key":"ref064","doi-asserted-by":"publisher","DOI":"10.1038\/243295a0"},{"key":"ref065","doi-asserted-by":"publisher","DOI":"10.1167\/15.12.1037"},{"key":"ref066","doi-asserted-by":"publisher","DOI":"10.1023\/B:PHEN.0000041900.30172.e8"},{"key":"ref067","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/119.3.951"},{"key":"ref068","doi-asserted-by":"publisher","DOI":"10.1111\/j.1532-5415.1987.tb01321.x"},{"key":"ref069","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1318395110"},{"key":"ref070","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuropsychologia.2017.10.008"},{"key":"ref071","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(74)92907-9"},{"key":"ref072","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuropsychologia.2008.10.012"},{"key":"ref073","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/111.2.347"},{"key":"ref074","doi-asserted-by":"publisher","DOI":"10.1007\/s00221-009-1712-x"},{"key":"ref075","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/120.3.535"},{"key":"ref076","doi-asserted-by":"publisher","DOI":"10.1016\/S0079-6123(06)55012-5"},{"key":"ref077","doi-asserted-by":"publisher","DOI":"10.1016\/S1385-299X(00)00040-4"},{"key":"ref078","doi-asserted-by":"publisher","DOI":"10.1007\/BF02057615"},{"key":"ref079","doi-asserted-by":"publisher","DOI":"10.1207\/s15324826an1303_3"},{"key":"ref080","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.25.3.208"},{"key":"ref081","doi-asserted-by":"publisher","DOI":"10.1006\/ccog.1998.0360"},{"key":"ref082","doi-asserted-by":"publisher","DOI":"10.1007\/s00221-008-1388-7"},{"key":"ref083","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.92.13.6122"},{"key":"ref084","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/97.1.709"},{"key":"ref085","doi-asserted-by":"publisher","DOI":"10.1212\/01.wnl.0000203913.12088.93"},{"key":"ref086","unstructured":"Zihl,J. (2000). Rehabilitation of Visual Disorders. Hove, UK: Psychology Press."},{"key":"ref087","doi-asserted-by":"crossref","unstructured":"Zihl,J. (2011), Rehabilitation of Visual Disorders After Brain Injury (2nd ed.). Hove, UK: Psychology Press.","DOI":"10.4324\/9780203843253"}],"container-title":["Restorative Neurology and Neuroscience"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.3233\/RNN-190951","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.3233\/RNN-190951","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.3233\/RNN-190951","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T04:48:37Z","timestamp":1777610917000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.3233\/RNN-190951"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,1,8]]},"references-count":87,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2020,8,20]]}},"alternative-id":["10.3233\/RNN-190951"],"URL":"https:\/\/doi.org\/10.3233\/rnn-190951","relation":{},"ISSN":["0922-6028","1878-3627"],"issn-type":[{"value":"0922-6028","type":"print"},{"value":"1878-3627","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,1,8]]}}}