▁language ▁that ▁may ▁be ▁evident ▁in ▁sch iz op hren ia . ▁ ▁The ▁words ▁may ▁or ▁may ▁not ▁be ▁gram matically ▁correct , ▁but ▁are ▁sem ant ically ▁confused ▁to ▁the ▁point ▁that ▁the ▁listener ▁cannot ▁extract ▁any ▁meaning ▁from ▁them . ▁The ▁term ▁is ▁often ▁used ▁in ▁psych iat ry ▁as ▁well ▁as ▁in ▁theoretical ▁lingu istics ▁to ▁describe ▁a ▁type ▁of ▁gram mat ical ▁accept ability ▁jud g ement ▁by ▁native ▁speak ers , ▁and ▁in ▁computer ▁programming ▁to ▁describe ▁text ual ▁random ization . ▁ ▁In ▁psych iat ry ▁Word ▁sal ad ▁may ▁describe ▁a ▁sympt om ▁of ▁ne uro log ical ▁or ▁psych iat ric ▁conditions ▁in ▁which ▁a ▁person ▁attempts ▁to ▁communicate ▁an ▁idea , ▁but ▁words ▁and ▁phr ases ▁that ▁may ▁appear ▁to ▁be ▁random ▁and ▁un related ▁come ▁out ▁in ▁an ▁in co her ent ▁sequence ▁instead . ▁ ▁O ften , ▁the ▁person ▁is ▁una ware ▁that ▁he ▁or ▁she ▁did ▁not ▁make ▁sense . ▁ ▁It ▁appears ▁in ▁people ▁with ▁de ment ia ▁and ▁sch iz op hren ia , ▁as ▁well ▁as ▁after ▁an ox ic ▁brain ▁injury . ▁In ▁sch iz op hren ia ▁it ▁is ▁also ▁referred ▁to ▁as ▁sch iz oph asia . ▁Cl ang ▁associations ▁are ▁especially ▁characteristic ▁of ▁man ia , ▁as ▁seen ▁in ▁b ip olar ▁dis order , ▁as ▁a ▁somewhat ▁more ▁severe ▁variation ▁of ▁flight ▁of ▁ideas . ▁In ▁extreme ▁man ia , ▁the ▁patient ' s ▁speech ▁may ▁become ▁in co her ent