ArticleNature communications2025
Discretized representations in V1 predict suboptimal orientation discrimination.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- The neural code of perceptual inference.Molecular brain · 2026Review
- Visual experience drives functional reorganization of cortical GABAergic circuits.bioRxiv : the preprint server for biology · 2026Article
- Top-down perceptual inference shaping the activity of early visual cortex.Nature communications · 2025Article
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5 authors.
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Abstract
Neuronal population activity in sensory cortices is the substrate for perceptual decisions. Yet, we still do not understand how neuronal information content in sensory cortices relates to behavioral reports. To reconcile neurometric and psychometric performance, we recorded the activity of V1 neurons in mice performing a Go/NoGo orientation discrimination task. We found that, around the discrimination threshold, V1 does not represent the orientation of the stimuli as canonically expected. Instead, it forms categorical representations characterized by a relocation of activity at task-relevant domains of the orientation representational space. The relative neuronal activity at those discrete domains accurately predicted the probabilities of the animals' decisions. Our results thus suggest that the categorical integration of discretized feature representations from sensory cortices explains perceptual decisions.
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