<prompt> Triad of normal pressure hydrocephalus does not include:AtaxiaAphasiaDementiaUrinary incontinence  <response>: Ans. B. AphasiaTriad of NPH does not include aphasia. The clinical triad of NPH includes- An abnormal gait ataxic or apractic- Dementia usually mild to moderate, with an emphasis on executive impairment- Urinary urgency or incontinence Neuroimaging reveals enlarged lateral ventricles hydrocephalus with little or no cortical atrophy, although the sylvian fissures may appear propped open so-called boxcarring, which can be mistaken for Peri sylvian atrophy. 