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Updated: Sep 16, 2025

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Numerosity coding in the brain: from early visual processing to abstract representations

Andreas Nieder1

  • 1Animal Physiology, Institute of Neurobiology, University of Tuebingen, Auf der Morgenstelle 28, 72076 Tuebingen, BW, Germany.

Cerebral Cortex (New York, N.Y. : 1991)
|July 10, 2025
PubMed
Summary

Numerosity estimation, the ability to perceive quantity without counting, involves early visual areas and association cortices. Research indicates spatial frequency in early visual cortex and abstract tuning in intraparietal sulcus and prefrontal cortex are key.

Keywords:
association cortexintra-parietal cortexneuronal codenumberprefrontal cortex

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