ArticleiScience2025
Is my "red" your "red"?: Evaluating structural correspondences between color similarity judgments using unsupervised alignment.
Article in iScience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- The double-pass correlation: A reliability metric for subjective judgments in developmental research.MethodsX · 2026Article
- Principal bundle geometry of qualia: Understanding the quality of consciousness from symmetry.PNAS nexus · 2026Article
- A dynamic stimulus distribution methodology for efficient large-scale pairwise relational data collection.MethodsX · 2026Article
- Towards a Mathematical Structure of Global Phenomenal Consciousness.Entropy (Basel, Switzerland) · 2026Article
- Qualities, subjectivity and spatial extension: is there a common factor?Frontiers in psychology · 2026Article
- Reply to Bosten and Franklin: Children's color qualia structure is similar to adults'.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Correspondence of high dimensional emotion structures elicited from video clips between humans and multimodal LLMs.Scientific reports · 2025Article
- Task-relevant representational spaces in human memory traces.PLoS computational biology · 2025Article
- Article
- A neuroimaging dataset during sequential color qualia similarity judgments with and without reports.Scientific data · 2025Article
- Qualia structures collapse for geometric shapes, but not faces, when spatial attention is withdrawn.Neuroscience of consciousness · 2025Article
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Authors and funding
5 authors.
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Abstract
Whether one person's subjective experience of the "redness" of red is equivalent to another's is a fundamental question in consciousness studies. Intersubjective comparison of the relational structures of sensory experiences, termed "qualia structures", can constrain the question. We propose an unsupervised alignment method, based on optimal transport, to find the optimal mapping between the similarity structures of sensory experiences without presupposing correspondences (such as "red-to-red"). After collecting subjective similarity judgments for 93 colors, we showed that the similarity structures derived from color-neurotypical participants can be "correctly" aligned at the group level. In contrast, those of color-blind participants could not be aligned with color-neurotypical participants. Our results provide quantitative evidence for interindividual structural equivalence or difference of color qualia, implying that color-neurotypical people's "red" is relationally equivalent to other color-neurotypical's "red", but not to color-blind people's "red". This method is applicable across modalities, enabling general structural exploration of subjective experiences.
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