摘要：Recent research on neurological disorders of written word processing has proposed several critical areas of the brain such as prefrontal cortex for programming of letter scripts traditionally referred to as Exner area (Exner, 1881; Anderson & Damasio, 1990). Several case studies in aphasie patients have revealed dissociations between impaired writing of alphabetical scripts and relatively preserved writing of Arabic digits. Though both, letters and numbers contain verbal information, numbers are supposed to cany additional (magnitude) information, which may fecilitate their processing.
