Blindsight and unconscious vision: what they teach us about the human visual system
Open accessAbstract
Damage to the primary visual cortex removes the major input from the eyes to the brain, causing significant visual loss as patients are unable to perceive the side of the world contralateral to the damage. Some patients, however, retain the ability to detect visual information within this blind region; this is known as blindsight. By studying the visual pathways that underlie this residual vision in patients, we can uncover additional aspects of the human visual system that likely contribute to normal visual function but cannot be revealed under physiological conditions. In this review, we discuss the residual abilities and neural activity that have been described in blindsight and the implications of these findings for understanding the intact system.
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Blindsight subjects report blindness in part of their visual field, but they are able to use visual information about objects in that region to guide action.
“Blindsight illustrates the difference: subjects report blindness in part of their visual field, but they are able to use visual information about objects in that region to guide action [17–19].”
From Dimensions of Animal Consciousness (2020) · cites this paper as [17]
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Spencer, D. (2020) · Oxford University Press eBooks · doi:10.1093/oso/9780197510766.003.0005
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Spencer, D. (2020) · Oxford University Press eBooks · doi:10.1093/oso/9780197510766.003.0003
Spencer, D. (2020) · Oxford University Press eBooks · doi:10.1093/oso/9780197510766.003.0006
Spencer, D. (2020) · Oxford University Press eBooks · doi:10.1093/oso/9780197510766.003.0002
Spencer, D. (2020) · Oxford University Press eBooks · doi:10.1093/oso/9780197510766.003.0004
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Sensory-Salience Regulation in Emotional Transformation Therapy: A Clinical-Theoretical Framework
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- Authors
- Ajina, S., & Bridge, H.
- Affiliations
- University of Oxford (GB)
- Corresponding author
- Bridge, Holly
- Venue
- The Neuroscientist
- Publisher
- SAGE Publications
- Published
- 2016-10-23
- Volume
- 23
- Issue
- 5
- Pages
- 529-541
- ISSN
- 1073-8584 (ISSN-L)
- 1089-4098
- PMC
- PMC5493986
- OpenAlex
- W2536212635
- Cited by
- 93
- References
- 113
- Citations by year
- 2026: 6 · 2025: 4 · 2024: 28 · 2023: 2 · 2022: 7 · 2021: 6 · 2020: 24 · 2019: 6 · 2018: 7 · 2017: 3
- FWCI
- 0.56
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- The Neuroscientist (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- Wellcome Trust
- The Royal Society
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
- Life Sciences › Neuroscience › Cognitive Neuroscience › Spatial Neglect and Hemispheric Dysfunction
- Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
- Keywords
- blindsight, primary visual cortex, visual cortex damage, contralateral visual field, residual vision, visual pathway, neuronal activity, visual perception
- MeSH terms
- Awareness, Humans, Vision, Ocular, Visual Pathways
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Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
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