Brain pathways for mirror discrimination learning during literacy acquisition

Autor/Urheber:

Pegado F, Nakamura K and Hannagan T

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Beschreibung:

Brain pathways for mirror discrimination learning during literacy acquisition. Upper: The Visual Word Form Area [VWFA] (in red) presents mirror invariance before alphabetization and mirror discrimination for letters after alphabetization.

A key aspect of alphabetization is to set in place the audio-visual mapping known as “phoneme-grapheme correspondence,” whereby elementary sounds of language (i.e., phonemes) are linked to visual representations of them (i.e., graphemes) (Frith, 1986).

Lower: During alphabetization, the VWFA can receive top-down inputs with discriminative information from phonological, gestural (handwriting) and speech production areas and bottom-up inputs from lower level visual areas. All these inputs can help the VWFA to discriminate between mirror representations, thus correctly identifying letters to enable a fluent reading.

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CC BY 3.0

Credit:

Pegado F, Nakamura K and Hannagan T (2014) How does literacy break mirror invariance in the visual system? Front. Psychol. 5:703. doi: 10.3389/fpsyg.2014.00703 http://journal.frontiersin.org/article/10.3389/fpsyg.2014.00703/full

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