1) Brain disease 2) Brain disorder 3) Encephalopathy 
Inability to correctly formulate a statement. ... Origin: G. A-priv. + kataphasis, affirmation ... (05 Mar 2000) ... 
[n] - a disorder in which a lesion to the central nervous system leaves you unable to formulate a statement or to express yourself in an organized manner
acataphasia A physical disorder in which a lesion to the central nervous system leaves a person unable to correctly formulate a statement or to express oneself in an organized manner.
noun a disorder in which a lesion to the central nervous system leaves you unable to formulate a statement or to express yourself in an organized manner