When visual metacognition fails: widespread anosognosia for visual deficits.

Autor: Michel M; Massachusetts Institute of Technology, Cambridge, MA, USA. Electronic address: mmichel@mit.edu., Gao Y; Georgia Institute of Technology, Atlanta, GA, USA., Mazor M; University of Oxford, Oxford, UK., Kletenik I; Division of Cognitive and Behavioral Neurology, Department of Neurology and Center for Brain Circuit Therapeutics, Brigham and Women's Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA 02115, USA., Rahnev D; Georgia Institute of Technology, Atlanta, GA, USA. Electronic address: rahnev@psych.gatech.edu.
Jazyk: angličtina
Zdroj: Trends in cognitive sciences [Trends Cogn Sci] 2024 Dec; Vol. 28 (12), pp. 1066-1077. Date of Electronic Publication: 2024 Oct 01.
DOI: 10.1016/j.tics.2024.09.003
Abstrakt: Anosognosia for visual deficits - cases where significant visual deficits go unnoticed - challenges the view that our own conscious experiences are what we know best. We review these widespread and striking failures of awareness. Anosognosia can occur with total blindness, visual abnormalities induced by brain lesions, and eye diseases. We show that anosognosia for visual deficits is surprisingly widespread. Building on previous accounts, we introduce a framework showing how apparently disparate forms of anosognosia fit together. The central idea is that, to notice a deficit, individuals need to form expectations about normal vision, compare expectations and visual input, and judge any mismatch at the metacognitive level. A failure in any of these three steps may lead to unawareness of visual deficits.
Competing Interests: Declaration of interests No interests are declared.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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