ArticleJournal of vision2024
How does V1 population activity inform perceptual certainty?
Article in Journal of vision, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Computational and Neuronal Basis of Visual Confidence.Annual review of vision science · 2025Review
- Sensory population activity reveals downstream confidence computations in the primate visual system.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Bayesian inference by visuomotor neurons in the prefrontal cortex.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Bayesian inference by visuomotor neurons in prefrontal cortex.bioRxiv : the preprint server for biology · 2024Article
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4 authors.
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Abstract
Neural population activity in sensory cortex informs our perceptual interpretation of the environment. Oftentimes, this population activity will support multiple alternative interpretations. The larger the spread of probability over different alternatives, the more uncertain the selected perceptual interpretation. We test the hypothesis that the reliability of perceptual interpretations can be revealed through simple transformations of sensory population activity. We recorded V1 population activity in fixating macaques while presenting oriented stimuli under different levels of nuisance variability and signal strength. We developed a decoding procedure to infer from V1 activity the most likely stimulus orientation as well as the certainty of this estimate. Our analysis shows that response magnitude, response dispersion, and variability in response gain all offer useful proxies for orientation certainty. Of these three metrics, the last one has the strongest association with the decoder's uncertainty estimates. These results clarify that the nature of neural population activity in sensory cortex provides downstream circuits with multiple options to assess the reliability of perceptual interpretations.
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