Special purpose letter processor? (Pure) Alexia

• Pure Alexia: acquired reading impairment without other salient language deficits.

• patients read letter-by-letter

• word knowledge is intact

• Can dissociate from other recognition problems

• Co-occurs with achromatopsia

• Upper RVF quadrantanopia

• Unilateral LH lesion occipital-temporal region (area 19 / 37)

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