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Skeptics have argued that this is no different from the behavior of normal subjects at the lower limits of conscious vision, at which such dissociations could arise trivially by using different response criteria during clinical and forced-choice tests. We tested this claim explicitly by measuring the sensitivity of a hemianopic patient independently of his response criterion in yes-no and forced-choice detection tasks with the same stimulus and found that, unlike normal controls, his sensitivity was significantly higher during the forced-choice task. Thus, the dissociation by which blindsight is defined is not simply due to a difference in the patients\u2019 response bias between the two paradigms. This result implies that blindsight is unlike normal, near-threshold vision and that information about the stimulus is processed in blindsighted patients in an unusual way.<\/jats:p>","DOI":"10.1073\/pnas.94.25.14190","type":"journal-article","created":{"date-parts":[[2002,7,26]],"date-time":"2002-07-26T14:31:39Z","timestamp":1027693899000},"page":"14190-14194","update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":130,"title":["Is blindsight like normal, near-threshold\u2009vision?"],"prefix":"10.1073","volume":"94","author":[{"given":"Paul","family":"Azzopardi","sequence":"first","affiliation":[{"name":"Department of Psychology, Princeton University, Princeton, NJ 08544-1010; and Department of Experimental Psychology, University of Oxford, Oxford OX1 3UD, United Kingdom"}]},{"given":"Alan","family":"Cowey","sequence":"additional","affiliation":[{"name":"Department of Psychology, Princeton University, Princeton, NJ 08544-1010; and Department of Experimental Psychology, University of Oxford, Oxford OX1 3UD, United Kingdom"}]}],"member":"341","published-online":{"date-parts":[[1997,12,9]]},"reference":[{"key":"e_1_3_3_1_2","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.1945.0002"},{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1038\/243295a0"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/97.1.709"},{"key":"e_1_3_3_4_2","volume-title":"Blindsight: A Case Study and Its Implications","author":"Weiskrantz L","year":"1986","unstructured":"L Weiskrantz Blindsight: A Case Study and Its Implications (Oxford Univ. 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