Language is fundamentally a means for social communication. Through language we organize our sensory experience and express our thoughts, feelings, and expectations. Language is particular interesting from cognitive informatics point of view because its specific and localized organization can explore the functional architecture of the dominant hemisphere of the brain.

     Recent studies of human brain show that the written word is transferred from the retina to the lateral geniculate nucleus, and from there to the primary visual cortex. The information then travels to a higher-order center, where it is conveyed first to the angular gyrus of the parietal-temporal-occipital association cortex, and then to Wernicke’s area, where the visual information is transformed into a phonetic representation of the word. For spoken word the auditory information is processed by primary auditory cortex. Then the information input to higher-order auditory cortex, before it is conveyed to a specific region of the parietal-temporal-occipital association cortex, the angular gyrus, which is concerned with the association of incoming auditory, visual, and tactile information. From here the information is projected to Wernicke’s area and Broca’s area. In Broca’s area the perception of language is translated into the grammatical structure of a phrase and the memory for word articulation is stored [3].