Agraphia

The term Agrafie (also agraphia ) referred to write the inability to words and texts, although the necessary movement of hand ( hand movement ) and the intellect are still available. The dysgraphia ( Dysgrafie ) is a write fault in the sense of a slight agraphia.

The term was coined in 1869 by agraphia John William Ogle ( 1824-1905 ).

Causes

Agrafien are consequences of brain damage and often occur together with aphasia. Agrafie may be the result of isolation. Many patients have difficulty with writing, because they suffer from hemiplegia ( hemiparesis ), as in many other neurological disorders, such as the PANS- syndrome after a stroke. If the side of the dominant hand affected, writing is the basis of this paralysis often cumbersome or impossible, so must be written with the other hand. Frequently this is also not possible because a paralysis of the writing hand is often associated with aphasia and this is responsible for the Agrafie.

Molding

There are various forms of Agrafie that can write to a complete inability to reach:

• Lexical agraphia: hard to distinguish words can not be spoken, visual word images are created from more visual and less from phonological engrams; Lesion in the left angular gyrus ( Brodmann Area 39 )

• Phonological agraphia: writing correct reproduction of rare and familiar words, but inability to express them; Lesion in the supramarginal gyrus or perisylvic region

• Semantic agraphia: meaningful containing material can not be spoken and written; Disorders of the paths of semantic region to Wernicke's area and the angular gyrus or subcortical lesion

• Apraxic agraphia: usually coupled with aphasia, fine motor skills can no longer forms of writing; disturbed are in right-handers the left parietal regions