: ▁ ▁With ▁Good ▁Pro gn ost ic ▁Fe atures , ▁used ▁if ▁at ▁least ▁two ▁of ▁the ▁following ▁features ▁are ▁present : ▁On set ▁of ▁prominent ▁psych otic ▁sympt oms ▁within ▁ 4 ▁weeks ▁of ▁the ▁first ▁notice able ▁change ▁in ▁usual ▁behavior ▁or ▁function ing ▁Conf usion ▁or ▁per plex ity ▁at ▁the ▁height ▁of ▁the ▁psych otic ▁episode ▁Good ▁prem orb id ▁social ▁and ▁occup ational ▁function ing ▁Abs ence ▁of ▁bl unted ▁or ▁flat ▁affect ▁Without ▁Good ▁Pro gn ost ic ▁Fe atures , ▁used ▁if ▁two ▁or ▁more ▁of ▁the ▁above ▁features ▁have ▁not ▁been ▁present . ▁ ▁The ▁presence ▁of ▁negative ▁sympt oms ▁and ▁poor ▁eye ▁contact ▁both ▁appear ▁to ▁be ▁pro gn ost ic ▁of ▁a ▁poor ▁outcome . ▁Many ▁of ▁the ▁an atomic ▁and ▁functional ▁changes ▁seen ▁in ▁the ▁bra ins ▁of ▁patients ▁with ▁sch iz op hren ia ▁also ▁occur ▁in ▁patients ▁with ▁sch iz op hren iform ▁dis order . ▁However , ▁at ▁present ▁there ▁is ▁no ▁cons ensus ▁among ▁scient ists ▁regarding ▁whether ▁or ▁not ▁vent ric ular ▁en larg ement , ▁which ▁is ▁a ▁poor ▁pro gn ost ic ▁factor ▁in ▁sch iz op hren ia , ▁has ▁any ▁pro gn ost ic ▁value ▁in ▁patients ▁with ▁sch iz op hren iform ▁dis order . ▁According ▁to ▁the ▁American ▁Psych iat ric ▁Association , ▁approximately ▁two - third s ▁of ▁patients ▁diagn osed ▁with ▁" pro vis ional " ▁sch iz op hren iform ▁dis order ▁are ▁subsequently ▁diagn osed ▁with