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Cerebral Cortex
Article . 2024 . Peer-reviewed
License: CC BY NC
Data sources: Crossref
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Article . 2024
License: CC BY
Data sources: ZENODO
Cerebral Cortex
Article . 2025
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On the bright side of blindsight. Considerations from new observations of awareness in a blindsight patient

Authors: de Gelder, Beatrice; Humphrey, Nicholas; Pegna, Alan;

On the bright side of blindsight. Considerations from new observations of awareness in a blindsight patient

Abstract

Abstract Blindsight refers to the ability to make accurate visual discriminations without conscious awareness of the stimuli. In this study, we present new evidence from naturalistic observations of a patient with bilateral damage to the striate cortex, who surprisingly demonstrated the ability to detect colored objects, particularly red ones. Despite the slow and effortful process, the patient reported full awareness of the color aspect of the stimuli. These observations cannot be explained by traditional concepts of type 1 or type 2 blindsight, raising intriguing questions about the boundaries between objective and subjective blindness, as well as the nature of visual experience and epistemic agency. Moreover, these findings underscore the significant role that blindsight could play in future research, especially in understanding how higher cortical functions are involved in emotions and feelings. This highlights the necessity for further exploration to better understand the visual features that contribute to the phenomenon of affective blindsight.

Country
Netherlands
Keywords

hemianopia, Male, color processing, residual vision, Middle Aged, Awareness, consciousness, Blindness, Visual Perception, Humans, Original Article, blindsight, cortical blindness, Color Perception, Photic Stimulation, Visual Cortex

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    influence
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
8
Top 10%
Average
Top 10%
Green
hybrid