ArticleNeuroImage2017
Numerosity processing in early visual cortex.
Article in NeuroImage, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.
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Who cites it
51 citing papers in PubMed.
- Posture-Related Regional Homogeneity Abnormalities in Cerebral Small Vessel Disease: A Multi-Position MRI Study.CNS neuroscience & therapeutics · 2026Article
- Stage-Specific Processing in Numerosity Working Memory: ERP Evidence for Load and Mismatch Effects in a Delayed Match-to-Sample Task.NeuroSci · 2026Article
- An Underestimation Bias in the Numerical Perception of Rewarding Stimuli: An ERP Study.Journal of Intelligence · 2026Article
- Perceptual grouping, not covert attention, drives the connectedness effect in the ANS.Psychological research · 2026Article
- Texture density discrimination is more precise than number discrimination.Journal of vision · 2026Article
- Transcranial Direct Current Stimulation (tDCS) in Diabetes: A Focused and Mechanistic Review of Symptom and Function Outcomes.Journal of clinical medicine · 2025Review
- Extrastriate activity reflects sensorimotor-induced bias in estimating number of visual humans.Cerebral cortex (New York, N.Y. : 1991) · 2025Article
- Distinct neural representational geometries of numerosity in early visual and association regions across visual streams.Communications biology · 2025Article
- Feature-selective adaptation of numerosity perception.Proceedings. Biological sciences · 2025Article
- From automatic integration to selective control: time-resolved effects of sensory cues on numerical comparison.Frontiers in neuroscience · 2025Article
- Magnitude processing and integration entail perceptual processes independent from the task.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Measuring temporal bias in sequential numerosity comparison.Behavior research methods · 2024Article
- Identifying conceptual neural responses to symbolic numerals.Proceedings. Biological sciences · 2024Article
- Effects of spatial frequency cross-adaptation on the visual number sense.Attention, perception & psychophysics · 2024Article
- The neural correlates of individual differences in numerosity perception: A voxel-based morphometry study.iScience · 2023Article
- Near-optimal integration of the magnitude information of time and numerosity.Royal Society open science · 2023Article
- Electrophysiological Comparison of Cumulative Area and Non-Symbolic Number Judgments.Brain sciences · 2023Article
- Perceptual History Biases Are Predicted by Early Visual-Evoked Activity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023Article
- Dyslexia: Causes and Concomitant Impairments.Brain sciences · 2023Review
- Underestimation of the number of hidden objects.Journal of vision · 2023Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
While parietal cortex is thought to be critical for representing numerical magnitudes, we recently reported an event-related potential (ERP) study demonstrating selective neural sensitivity to numerosity over midline occipital sites very early in the time course, suggesting the involvement of early visual cortex in numerosity processing. However, which specific brain area underlies such early activation is not known. Here, we tested whether numerosity-sensitive neural signatures arise specifically from the initial stages of visual cortex, aiming to localize the generator of these signals by taking advantage of the distinctive folding pattern of early occipital cortices around the calcarine sulcus, which predicts an inversion of polarity of ERPs arising from these areas when stimuli are presented in the upper versus lower visual field. Dot arrays, including 8-32dots constructed systematically across various numerical and non-numerical visual attributes, were presented randomly in either the upper or lower visual hemifields. Our results show that neural responses at about 90ms post-stimulus were robustly sensitive to numerosity. Moreover, the peculiar pattern of polarity inversion of numerosity-sensitive activity at this stage suggested its generation primarily in V2 and V3. In contrast, numerosity-sensitive ERP activity at occipito-parietal channels later in the time course (210-230ms) did not show polarity inversion, indicating a subsequent processing stage in the dorsal stream. Overall, these results demonstrate that numerosity processing begins in one of the earliest stages of the cortical visual stream.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.