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PubMed · 15951224

The neural code for written words: a proposal.

Stanislas Dehaene·Laurent Cohen·Mariano Sigman·Fabien Vinckier
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Abstract

How is reading, a cultural invention, coded by neural populations in the human brain? The neural code for written words must be abstract, because we can recognize words regardless of their location, font and size. Yet it must also be exquisitely sensitive to letter identity and letter order. Most existing coding schemes are insufficiently invariant or incompatible with the constraints of the visual system. We propose a tentative neuronal model according to which part of the occipito-temporal 'what' pathway is tuned to writing and forms a hierarchy of local combination detectors sensitive to increasingly larger fragments of words. Our proposal can explain why the detection of 'open bigrams' (ordered pairs of letters) constitutes an important stage in visual word recognition.

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Age FactorsAnimalsBrain MappingFunctional LateralityHumansLearningModels, NeurologicalRecognition, PsychologyVisual CortexVisual PathwaysVisual PerceptionVocabularyWritingJournal ArticleReview

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Stanislas Dehaene, Laurent Cohen, Mariano Sigman, Fabien Vinckier. 2005. The neural code for written words: a proposal.. https://doi.org/10.1016/j.tics.2005.05.004

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